PropertyUtilsBean (Apache Commons BeanUtils 1.9.2 API)

java.lang.Object
- org.apache.commons.beanutils.PropertyUtilsBean

```
public class PropertyUtilsBean
extends Object
```
Utility methods for using Java Reflection APIs to facilitate generic property getter and setter operations on Java objects. Much of this code was originally included in BeanUtils, but has been separated because of the volume of code involved.
In general, the objects that are examined and modified using these methods are expected to conform to the property getter and setter method naming conventions described in the JavaBeans Specification (Version 1.0.1). No data type conversions are performed, and there are no usage of any PropertyEditor classes that have been registered, although a convenient way to access the registered classes themselves is included.
For the purposes of this class, five formats for referencing a particular property value of a bean are defined, with the default layout of an identifying String in parentheses. However the notation for these formats and how they are resolved is now (since BeanUtils 1.8.0) controlled by the configured Resolver implementation:
- Simple (name) - The specified name identifies an individual property of a particular JavaBean. The name of the actual getter or setter method to be used is determined using standard JavaBeans instrospection, so that (unless overridden by a BeanInfo class, a property named "xyz" will have a getter method named getXyz() or (for boolean properties only) isXyz(), and a setter method named setXyz().
- Nested (name1.name2.name3) The first name element is used to select a property getter, as for simple references above. The object returned for this property is then consulted, using the same approach, for a property getter for a property named name2, and so on. The property value that is ultimately retrieved or modified is the one identified by the last name element.
- Indexed (name[index]) - The underlying property value is assumed to be an array, or this JavaBean is assumed to have indexed property getter and setter methods. The appropriate (zero-relative) entry in the array is selected. List objects are now also supported for read/write. You simply need to define a getter that returns the List
- Mapped (name(key)) - The JavaBean is assumed to have an property getter and setter methods with an additional attribute of type java.lang.String.
- Combined (name1.name2[index].name3(key)) - Combining mapped, nested, and indexed references is also supported.
Since:

1.7

Version:

$Id: PropertyUtilsBean.java 1555231 2014-01-03 19:38:03Z oheger $

See Also:
Resolver, PropertyUtils

Constructor Summary

Constructors
Constructor and Description

PropertyUtilsBean()
Base constructor

Constructors
Constructor and Description
`PropertyUtilsBean()` Base constructor

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`addBeanIntrospector(BeanIntrospector introspector)` Adds a `BeanIntrospector`.
`void`	`clearDescriptors()` Clear any cached property descriptors information for all classes loaded by any class loaders.
`void`	`copyProperties(Object dest, Object orig)` Copy property values from the "origin" bean to the "destination" bean for all cases where the property names are the same (even though the actual getter and setter methods might have been customized via `BeanInfo` classes).
`Map<String,Object>`	`describe(Object bean)` Return the entire set of properties for which the specified bean provides a read method.
`Object`	`getIndexedProperty(Object bean, String name)` Return the value of the specified indexed property of the specified bean, with no type conversions.
`Object`	`getIndexedProperty(Object bean, String name, int index)` Return the value of the specified indexed property of the specified bean, with no type conversions.
`protected static PropertyUtilsBean`	`getInstance()` Return the PropertyUtils bean instance.
`Object`	`getMappedProperty(Object bean, String name)` Return the value of the specified mapped property of the specified bean, with no type conversions.
`Object`	`getMappedProperty(Object bean, String name, String key)` Return the value of the specified mapped property of the specified bean, with no type conversions.
`org.apache.commons.collections.FastHashMap`	`getMappedPropertyDescriptors(Class<?> beanClass)` Deprecated. This method should not be exposed
`org.apache.commons.collections.FastHashMap`	`getMappedPropertyDescriptors(Object bean)` Deprecated. This method should not be exposed
`Object`	`getNestedProperty(Object bean, String name)` Return the value of the (possibly nested) property of the specified name, for the specified bean, with no type conversions.
`Object`	`getProperty(Object bean, String name)` Return the value of the specified property of the specified bean, no matter which property reference format is used, with no type conversions.
`PropertyDescriptor`	`getPropertyDescriptor(Object bean, String name)` Retrieve the property descriptor for the specified property of the specified bean, or return `null` if there is no such descriptor.
`PropertyDescriptor[]`	`getPropertyDescriptors(Class<?> beanClass)` Retrieve the property descriptors for the specified class, introspecting and caching them the first time a particular bean class is encountered.
`PropertyDescriptor[]`	`getPropertyDescriptors(Object bean)` Retrieve the property descriptors for the specified bean, introspecting and caching them the first time a particular bean class is encountered.
`Class<?>`	`getPropertyEditorClass(Object bean, String name)` Return the Java Class repesenting the property editor class that has been registered for this property (if any).
`protected Object`	`getPropertyOfMapBean(Map<?,?> bean, String propertyName)` This method is called by getNestedProperty and setNestedProperty to define what it means to get a property from an object which implements Map.
`Class<?>`	`getPropertyType(Object bean, String name)` Return the Java Class representing the property type of the specified property, or `null` if there is no such property for the specified bean.
`Method`	`getReadMethod(PropertyDescriptor descriptor)` Return an accessible property getter method for this property, if there is one; otherwise return `null`.
`Resolver`	`getResolver()` Return the configured `Resolver` implementation used by BeanUtils.
`Object`	`getSimpleProperty(Object bean, String name)` Return the value of the specified simple property of the specified bean, with no type conversions.
`Method`	`getWriteMethod(Class<?> clazz, PropertyDescriptor descriptor)` Return an accessible property setter method for this property, if there is one; otherwise return `null`.
`Method`	`getWriteMethod(PropertyDescriptor descriptor)` Return an accessible property setter method for this property, if there is one; otherwise return `null`.
`boolean`	`isReadable(Object bean, String name)` Return `true` if the specified property name identifies a readable property on the specified bean; otherwise, return `false`.
`boolean`	`isWriteable(Object bean, String name)` Return `true` if the specified property name identifies a writeable property on the specified bean; otherwise, return `false`.
`boolean`	`removeBeanIntrospector(BeanIntrospector introspector)` Removes the specified `BeanIntrospector`.
`void`	`resetBeanIntrospectors()` Resets the `BeanIntrospector` objects registered at this instance.
`void`	`setIndexedProperty(Object bean, String name, int index, Object value)` Set the value of the specified indexed property of the specified bean, with no type conversions.
`void`	`setIndexedProperty(Object bean, String name, Object value)` Set the value of the specified indexed property of the specified bean, with no type conversions.
`void`	`setMappedProperty(Object bean, String name, Object value)` Set the value of the specified mapped property of the specified bean, with no type conversions.
`void`	`setMappedProperty(Object bean, String name, String key, Object value)` Set the value of the specified mapped property of the specified bean, with no type conversions.
`void`	`setNestedProperty(Object bean, String name, Object value)` Set the value of the (possibly nested) property of the specified name, for the specified bean, with no type conversions.
`void`	`setProperty(Object bean, String name, Object value)` Set the value of the specified property of the specified bean, no matter which property reference format is used, with no type conversions.
`protected void`	`setPropertyOfMapBean(Map<String,Object> bean, String propertyName, Object value)` This method is called by method setNestedProperty when the current bean is found to be a Map object, and defines how to deal with setting a property on a Map.
`void`	`setResolver(Resolver resolver)` Configure the `Resolver` implementation used by BeanUtils.
`void`	`setSimpleProperty(Object bean, String name, Object value)` Set the value of the specified simple property of the specified bean, with no type conversions.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - PropertyUtilsBean
```
public PropertyUtilsBean()
```
    Base constructor
- Method Detail
  - getInstance
```
protected static PropertyUtilsBean getInstance()
```
    Return the PropertyUtils bean instance.
    
    Returns:
    The PropertyUtils bean instance
  - getResolver
```
public Resolver getResolver()
```
    Return the configured Resolver implementation used by BeanUtils.
    The Resolver handles the property name expressions and the implementation in use effectively controls the dialect of the expression language that BeanUtils recongnises.
    DefaultResolver is the default implementation used.
    
    Returns:
    resolver The property expression resolver.
    Since:
    
    1.8.0
  - setResolver
```
public void setResolver(Resolver resolver)
```
    Configure the Resolver implementation used by BeanUtils.
    The Resolver handles the property name expressions and the implementation in use effectively controls the dialect of the expression language that BeanUtils recongnises.
    DefaultResolver is the default implementation used.
    
    Parameters:
    resolver - The property expression resolver.
    Since:
    
    1.8.0
  - resetBeanIntrospectors
```
public final void resetBeanIntrospectors()
```
    Resets the BeanIntrospector objects registered at this instance. After this method was called, only the default BeanIntrospector is registered.
    
    Since:
    
    1.9
  - addBeanIntrospector
```
public void addBeanIntrospector(BeanIntrospector introspector)
```
    Adds a BeanIntrospector. This object is invoked when the property descriptors of a class need to be obtained.
    
    Parameters:
    introspector - the BeanIntrospector to be added (must not be null
    
    Throws:
    
    IllegalArgumentException - if the argument is null
    Since:
    
    1.9
  - removeBeanIntrospector
```
public boolean removeBeanIntrospector(BeanIntrospector introspector)
```
    Removes the specified BeanIntrospector.
    
    Parameters:
    introspector - the BeanIntrospector to be removed
    
    Returns:
    true if the BeanIntrospector existed and could be removed, false otherwise
    Since:
    
    1.9
  - clearDescriptors
```
public void clearDescriptors()
```
    Clear any cached property descriptors information for all classes loaded by any class loaders. This is useful in cases where class loaders are thrown away to implement class reloading.
  - copyProperties
```
public void copyProperties(Object dest,
                  Object orig)
                    throws IllegalAccessException,
                           InvocationTargetException,
                           NoSuchMethodException
```
    Copy property values from the "origin" bean to the "destination" bean for all cases where the property names are the same (even though the actual getter and setter methods might have been customized via BeanInfo classes). No conversions are performed on the actual property values -- it is assumed that the values retrieved from the origin bean are assignment-compatible with the types expected by the destination bean.
    
    If the origin "bean" is actually a Map, it is assumed to contain String-valued simple property names as the keys, pointing at the corresponding property values that will be set in the destination bean.Note that this method is intended to perform a "shallow copy" of the properties and so complex properties (for example, nested ones) will not be copied.
    
    Note, that this method will not copy a List to a List, or an Object[] to an Object[]. It's specifically for copying JavaBean properties.
    
    Parameters:
    dest - Destination bean whose properties are modified
    orig - Origin bean whose properties are retrieved
    
    Throws:
    
    IllegalAccessException - if the caller does not have access to the property accessor method
    
    IllegalArgumentException - if the dest or orig argument is null
    
    InvocationTargetException - if the property accessor method throws an exception
    
    NoSuchMethodException - if an accessor method for this propety cannot be found
  - describe
```
public Map<String,Object> describe(Object bean)
                            throws IllegalAccessException,
                                   InvocationTargetException,
                                   NoSuchMethodException
```
    Return the entire set of properties for which the specified bean provides a read method. This map contains the unconverted property values for all properties for which a read method is provided (i.e. where the getReadMethod() returns non-null).
    
    FIXME - Does not account for mapped properties.
    
    Parameters:
    bean - Bean whose properties are to be extracted
    
    Returns:
    The set of properties for the bean
    
    Throws:
    
    IllegalAccessException - if the caller does not have access to the property accessor method
    
    IllegalArgumentException - if bean is null
    
    InvocationTargetException - if the property accessor method throws an exception
    
    NoSuchMethodException - if an accessor method for this propety cannot be found
  - getIndexedProperty
```
public Object getIndexedProperty(Object bean,
                        String name)
                          throws IllegalAccessException,
                                 InvocationTargetException,
                                 NoSuchMethodException
```
    Return the value of the specified indexed property of the specified bean, with no type conversions. The zero-relative index of the required value must be included (in square brackets) as a suffix to the property name, or IllegalArgumentException will be thrown. In addition to supporting the JavaBeans specification, this method has been extended to support List objects as well.
    
    Parameters:
    bean - Bean whose property is to be extracted
    name - propertyname[index] of the property value to be extracted
    
    Returns:
    the indexed property value
    
    Throws:
    
    IndexOutOfBoundsException - if the specified index is outside the valid range for the underlying array or List
    
    IllegalAccessException - if the caller does not have access to the property accessor method
    
    IllegalArgumentException - if bean or name is null
    
    InvocationTargetException - if the property accessor method throws an exception
    
    NoSuchMethodException - if an accessor method for this propety cannot be found
  - getIndexedProperty
```
public Object getIndexedProperty(Object bean,
                        String name,
                        int index)
                          throws IllegalAccessException,
                                 InvocationTargetException,
                                 NoSuchMethodException
```
    Return the value of the specified indexed property of the specified bean, with no type conversions. In addition to supporting the JavaBeans specification, this method has been extended to support List objects as well.
    
    Parameters:
    bean - Bean whose property is to be extracted
    name - Simple property name of the property value to be extracted
    index - Index of the property value to be extracted
    
    Returns:
    the indexed property value
    
    Throws:
    
    IndexOutOfBoundsException - if the specified index is outside the valid range for the underlying property
    
    IllegalAccessException - if the caller does not have access to the property accessor method
    
    IllegalArgumentException - if bean or name is null
    
    InvocationTargetException - if the property accessor method throws an exception
    
    NoSuchMethodException - if an accessor method for this propety cannot be found
  - getMappedProperty
```
public Object getMappedProperty(Object bean,
                       String name)
                         throws IllegalAccessException,
                                InvocationTargetException,
                                NoSuchMethodException
```
    Return the value of the specified mapped property of the specified bean, with no type conversions. The key of the required value must be included (in brackets) as a suffix to the property name, or IllegalArgumentException will be thrown.
    
    Parameters:
    bean - Bean whose property is to be extracted
    name - propertyname(key) of the property value to be extracted
    
    Returns:
    the mapped property value
    
    Throws:
    
    IllegalAccessException - if the caller does not have access to the property accessor method
    
    InvocationTargetException - if the property accessor method throws an exception
    
    NoSuchMethodException - if an accessor method for this propety cannot be found
  - getMappedProperty
```
public Object getMappedProperty(Object bean,
                       String name,
                       String key)
                         throws IllegalAccessException,
                                InvocationTargetException,
                                NoSuchMethodException
```
    Return the value of the specified mapped property of the specified bean, with no type conversions.
    
    Parameters:
    bean - Bean whose property is to be extracted
    name - Mapped property name of the property value to be extracted
    key - Key of the property value to be extracted
    
    Returns:
    the mapped property value
    
    Throws:
    
    IllegalAccessException - if the caller does not have access to the property accessor method
    
    InvocationTargetException - if the property accessor method throws an exception
    
    NoSuchMethodException - if an accessor method for this propety cannot be found
  - getMappedPropertyDescriptors
```
@Deprecated
public org.apache.commons.collections.FastHashMap getMappedPropertyDescriptors(Class<?> beanClass)
```
    Deprecated. This method should not be exposed
    
    Return the mapped property descriptors for this bean class.
    
    FIXME - Does not work with DynaBeans.
    
    Parameters:
    beanClass - Bean class to be introspected
    
    Returns:
    the mapped property descriptors
  - getMappedPropertyDescriptors
```
@Deprecated
public org.apache.commons.collections.FastHashMap getMappedPropertyDescriptors(Object bean)
```
    Deprecated. This method should not be exposed
    
    Return the mapped property descriptors for this bean.
    
    FIXME - Does not work with DynaBeans.
    
    Parameters:
    bean - Bean to be introspected
    
    Returns:
    the mapped property descriptors
  - getNestedProperty
```
public Object getNestedProperty(Object bean,
                       String name)
                         throws IllegalAccessException,
                                InvocationTargetException,
                                NoSuchMethodException
```
    Return the value of the (possibly nested) property of the specified name, for the specified bean, with no type conversions.
    
    Parameters:
    bean - Bean whose property is to be extracted
    name - Possibly nested name of the property to be extracted
    
    Returns:
    the nested property value
    
    Throws:
    
    IllegalAccessException - if the caller does not have access to the property accessor method
    
    IllegalArgumentException - if bean or name is null
    
    NestedNullException - if a nested reference to a property returns null
    
    InvocationTargetException - if the property accessor method throws an exception
    
    NoSuchMethodException - if an accessor method for this propety cannot be found
  - getPropertyOfMapBean
```
protected Object getPropertyOfMapBean(Map<?,?> bean,
                          String propertyName)
                               throws IllegalArgumentException,
                                      IllegalAccessException,
                                      InvocationTargetException,
                                      NoSuchMethodException
```
    This method is called by getNestedProperty and setNestedProperty to define what it means to get a property from an object which implements Map. See setPropertyOfMapBean for more information.
    
    Parameters:
    bean - Map bean
    propertyName - The property name
    
    Returns:
    the property value
    
    Throws:
    
    IllegalArgumentException - when the propertyName is regarded as being invalid.
    
    IllegalAccessException - just in case subclasses override this method to try to access real getter methods and find permission is denied.
    
    InvocationTargetException - just in case subclasses override this method to try to access real getter methods, and find it throws an exception when invoked.
    
    NoSuchMethodException - just in case subclasses override this method to try to access real getter methods, and want to fail if no simple method is available.
    Since:
    
    1.8.0
  - getProperty
```
public Object getProperty(Object bean,
                 String name)
                   throws IllegalAccessException,
                          InvocationTargetException,
                          NoSuchMethodException
```
    Return the value of the specified property of the specified bean, no matter which property reference format is used, with no type conversions.
    
    Parameters:
    bean - Bean whose property is to be extracted
    name - Possibly indexed and/or nested name of the property to be extracted
    
    Returns:
    the property value
    
    Throws:
    
    IllegalAccessException - if the caller does not have access to the property accessor method
    
    IllegalArgumentException - if bean or name is null
    
    InvocationTargetException - if the property accessor method throws an exception
    
    NoSuchMethodException - if an accessor method for this propety cannot be found
  - getPropertyDescriptor
```
public PropertyDescriptor getPropertyDescriptor(Object bean,
                                       String name)
                                         throws IllegalAccessException,
                                                InvocationTargetException,
                                                NoSuchMethodException
```
    Retrieve the property descriptor for the specified property of the specified bean, or return null if there is no such descriptor. This method resolves indexed and nested property references in the same manner as other methods in this class, except that if the last (or only) name element is indexed, the descriptor for the last resolved property itself is returned.
    
    FIXME - Does not work with DynaBeans.
    
    Parameters:
    bean - Bean for which a property descriptor is requested
    name - Possibly indexed and/or nested name of the property for which a property descriptor is requested
    
    Returns:
    the property descriptor
    
    Throws:
    
    IllegalAccessException - if the caller does not have access to the property accessor method
    
    IllegalArgumentException - if bean or name is null
    
    IllegalArgumentException - if a nested reference to a property returns null
    
    InvocationTargetException - if the property accessor method throws an exception
    
    NoSuchMethodException - if an accessor method for this propety cannot be found
  - getPropertyDescriptors
```
public PropertyDescriptor[] getPropertyDescriptors(Class<?> beanClass)
```
    Retrieve the property descriptors for the specified class, introspecting and caching them the first time a particular bean class is encountered.
    
    FIXME - Does not work with DynaBeans.
    
    Parameters:
    beanClass - Bean class for which property descriptors are requested
    
    Returns:
    the property descriptors
    
    Throws:
    
    IllegalArgumentException - if beanClass is null
  - getPropertyDescriptors
```
public PropertyDescriptor[] getPropertyDescriptors(Object bean)
```
    Retrieve the property descriptors for the specified bean, introspecting and caching them the first time a particular bean class is encountered.
    
    FIXME - Does not work with DynaBeans.
    
    Parameters:
    bean - Bean for which property descriptors are requested
    
    Returns:
    the property descriptors
    
    Throws:
    
    IllegalArgumentException - if bean is null
  - getPropertyEditorClass
```
public Class<?> getPropertyEditorClass(Object bean,
                              String name)
                                throws IllegalAccessException,
                                       InvocationTargetException,
                                       NoSuchMethodException
```
    Return the Java Class repesenting the property editor class that has been registered for this property (if any). This method follows the same name resolution rules used by getPropertyDescriptor(), so if the last element of a name reference is indexed, the property editor for the underlying property's class is returned.
    
    Note that null will be returned if there is no property, or if there is no registered property editor class. Because this return value is ambiguous, you should determine the existence of the property itself by other means.
    
    FIXME - Does not work with DynaBeans.
    
    Parameters:
    bean - Bean for which a property descriptor is requested
    name - Possibly indexed and/or nested name of the property for which a property descriptor is requested
    
    Returns:
    the property editor class
    
    Throws:
    
    IllegalAccessException - if the caller does not have access to the property accessor method
    
    IllegalArgumentException - if bean or name is null
    
    IllegalArgumentException - if a nested reference to a property returns null
    
    InvocationTargetException - if the property accessor method throws an exception
    
    NoSuchMethodException - if an accessor method for this propety cannot be found
  - getPropertyType
```
public Class<?> getPropertyType(Object bean,
                       String name)
                         throws IllegalAccessException,
                                InvocationTargetException,
                                NoSuchMethodException
```
    Return the Java Class representing the property type of the specified property, or null if there is no such property for the specified bean. This method follows the same name resolution rules used by getPropertyDescriptor(), so if the last element of a name reference is indexed, the type of the property itself will be returned. If the last (or only) element has no property with the specified name, null is returned.
    
    Parameters:
    bean - Bean for which a property descriptor is requested
    name - Possibly indexed and/or nested name of the property for which a property descriptor is requested
    
    Returns:
    The property type
    
    Throws:
    
    IllegalAccessException - if the caller does not have access to the property accessor method
    
    IllegalArgumentException - if bean or name is null
    
    IllegalArgumentException - if a nested reference to a property returns null
    
    InvocationTargetException - if the property accessor method throws an exception
    
    NoSuchMethodException - if an accessor method for this propety cannot be found
  - getReadMethod
```
public Method getReadMethod(PropertyDescriptor descriptor)
```
    Return an accessible property getter method for this property, if there is one; otherwise return null.
    
    FIXME - Does not work with DynaBeans.
    
    Parameters:
    descriptor - Property descriptor to return a getter for
    
    Returns:
    The read method
  - getSimpleProperty
```
public Object getSimpleProperty(Object bean,
                       String name)
                         throws IllegalAccessException,
                                InvocationTargetException,
                                NoSuchMethodException
```
    Return the value of the specified simple property of the specified bean, with no type conversions.
    
    Parameters:
    bean - Bean whose property is to be extracted
    name - Name of the property to be extracted
    
    Returns:
    The property value
    
    Throws:
    
    IllegalAccessException - if the caller does not have access to the property accessor method
    
    IllegalArgumentException - if bean or name is null
    
    IllegalArgumentException - if the property name is nested or indexed
    
    InvocationTargetException - if the property accessor method throws an exception
    
    NoSuchMethodException - if an accessor method for this propety cannot be found
  - getWriteMethod
```
public Method getWriteMethod(PropertyDescriptor descriptor)
```
    Return an accessible property setter method for this property, if there is one; otherwise return null.
    
    Note: This method does not work correctly with custom bean introspection under certain circumstances. It may return null even if a write method is defined for the property in question. Use getWriteMethod(Class, PropertyDescriptor) to be sure that the correct result is returned.
    
    FIXME - Does not work with DynaBeans.
    
    Parameters:
    descriptor - Property descriptor to return a setter for
    
    Returns:
    The write method
  - getWriteMethod
```
public Method getWriteMethod(Class<?> clazz,
                    PropertyDescriptor descriptor)
```
    Return an accessible property setter method for this property, if there is one; otherwise return null.
    
    FIXME - Does not work with DynaBeans.
    
    Parameters:
    clazz - The class of the read method will be invoked on
    descriptor - Property descriptor to return a setter for
    
    Returns:
    The write method
    Since:
    
    1.9.1
  - isReadable
```
public boolean isReadable(Object bean,
                 String name)
```
    Return true if the specified property name identifies a readable property on the specified bean; otherwise, return false.
    
    Parameters:
    bean - Bean to be examined (may be a DynaBean
    name - Property name to be evaluated
    
    Returns:
    true if the property is readable, otherwise false
    
    Throws:
    
    IllegalArgumentException - if bean or name is null
    Since:
    
    BeanUtils 1.6
  - isWriteable
```
public boolean isWriteable(Object bean,
                  String name)
```
    Return true if the specified property name identifies a writeable property on the specified bean; otherwise, return false.
    
    Parameters:
    bean - Bean to be examined (may be a DynaBean
    name - Property name to be evaluated
    
    Returns:
    true if the property is writeable, otherwise false
    
    Throws:
    
    IllegalArgumentException - if bean or name is null
    Since:
    
    BeanUtils 1.6
  - setIndexedProperty
```
public void setIndexedProperty(Object bean,
                      String name,
                      Object value)
                        throws IllegalAccessException,
                               InvocationTargetException,
                               NoSuchMethodException
```
    Set the value of the specified indexed property of the specified bean, with no type conversions. The zero-relative index of the required value must be included (in square brackets) as a suffix to the property name, or IllegalArgumentException will be thrown. In addition to supporting the JavaBeans specification, this method has been extended to support List objects as well.
    
    Parameters:
    bean - Bean whose property is to be modified
    name - propertyname[index] of the property value to be modified
    value - Value to which the specified property element should be set
    
    Throws:
    
    IndexOutOfBoundsException - if the specified index is outside the valid range for the underlying property
    
    IllegalAccessException - if the caller does not have access to the property accessor method
    
    IllegalArgumentException - if bean or name is null
    
    InvocationTargetException - if the property accessor method throws an exception
    
    NoSuchMethodException - if an accessor method for this propety cannot be found
  - setIndexedProperty
```
public void setIndexedProperty(Object bean,
                      String name,
                      int index,
                      Object value)
                        throws IllegalAccessException,
                               InvocationTargetException,
                               NoSuchMethodException
```
    Set the value of the specified indexed property of the specified bean, with no type conversions. In addition to supporting the JavaBeans specification, this method has been extended to support List objects as well.
    
    Parameters:
    bean - Bean whose property is to be set
    name - Simple property name of the property value to be set
    index - Index of the property value to be set
    value - Value to which the indexed property element is to be set
    
    Throws:
    
    IndexOutOfBoundsException - if the specified index is outside the valid range for the underlying property
    
    IllegalAccessException - if the caller does not have access to the property accessor method
    
    IllegalArgumentException - if bean or name is null
    
    InvocationTargetException - if the property accessor method throws an exception
    
    NoSuchMethodException - if an accessor method for this propety cannot be found
  - setMappedProperty
```
public void setMappedProperty(Object bean,
                     String name,
                     Object value)
                       throws IllegalAccessException,
                              InvocationTargetException,
                              NoSuchMethodException
```
    Set the value of the specified mapped property of the specified bean, with no type conversions. The key of the value to set must be included (in brackets) as a suffix to the property name, or IllegalArgumentException will be thrown.
    
    Parameters:
    bean - Bean whose property is to be set
    name - propertyname(key) of the property value to be set
    value - The property value to be set
    
    Throws:
    
    IllegalAccessException - if the caller does not have access to the property accessor method
    
    InvocationTargetException - if the property accessor method throws an exception
    
    NoSuchMethodException - if an accessor method for this propety cannot be found
  - setMappedProperty
```
public void setMappedProperty(Object bean,
                     String name,
                     String key,
                     Object value)
                       throws IllegalAccessException,
                              InvocationTargetException,
                              NoSuchMethodException
```
    Set the value of the specified mapped property of the specified bean, with no type conversions.
    
    Parameters:
    bean - Bean whose property is to be set
    name - Mapped property name of the property value to be set
    key - Key of the property value to be set
    value - The property value to be set
    
    Throws:
    
    IllegalAccessException - if the caller does not have access to the property accessor method
    
    InvocationTargetException - if the property accessor method throws an exception
    
    NoSuchMethodException - if an accessor method for this propety cannot be found
  - setNestedProperty
```
public void setNestedProperty(Object bean,
                     String name,
                     Object value)
                       throws IllegalAccessException,
                              InvocationTargetException,
                              NoSuchMethodException
```
    Set the value of the (possibly nested) property of the specified name, for the specified bean, with no type conversions.
    Example values for parameter "name" are:
    - "a" -- sets the value of property a of the specified bean
    - "a.b" -- gets the value of property a of the specified bean, then on that object sets the value of property b.
    - "a(key)" -- sets a value of mapped-property a on the specified bean. This effectively means bean.setA("key").
    - "a[3]" -- sets a value of indexed-property a on the specified bean. This effectively means bean.setA(3).
    Parameters:
    bean - Bean whose property is to be modified
    name - Possibly nested name of the property to be modified
    value - Value to which the property is to be set
    
    Throws:
    
    IllegalAccessException - if the caller does not have access to the property accessor method
    
    IllegalArgumentException - if bean or name is null
    
    IllegalArgumentException - if a nested reference to a property returns null
    
    InvocationTargetException - if the property accessor method throws an exception
    
    NoSuchMethodException - if an accessor method for this propety cannot be found
  - setPropertyOfMapBean
```
protected void setPropertyOfMapBean(Map<String,Object> bean,
                        String propertyName,
                        Object value)
                             throws IllegalArgumentException,
                                    IllegalAccessException,
                                    InvocationTargetException,
                                    NoSuchMethodException
```
    This method is called by method setNestedProperty when the current bean is found to be a Map object, and defines how to deal with setting a property on a Map.
    The standard implementation here is to:
    - call bean.set(propertyName) for all propertyName values.
    - throw an IllegalArgumentException if the property specifier contains MAPPED_DELIM or INDEXED_DELIM, as Map entries are essentially simple properties; mapping and indexing operations do not make sense when accessing a map (even thought the returned object may be a Map or an Array).
    The default behaviour of beanutils 1.7.1 or later is for assigning to "a.b" to mean a.put(b, obj) always. However the behaviour of beanutils version 1.6.0, 1.6.1, 1.7.0 was for "a.b" to mean a.setB(obj) if such a method existed, and a.put(b, obj) otherwise. In version 1.5 it meant a.put(b, obj) always (ie the same as the behaviour in the current version). In versions prior to 1.5 it meant a.setB(obj) always. [yes, this is all very unfortunate]
    Users who would like to customise the meaning of "a.b" in method setNestedProperty when a is a Map can create a custom subclass of this class and override this method to implement the behaviour of their choice, such as restoring the pre-1.4 behaviour of this class if they wish. When overriding this method, do not forget to deal with MAPPED_DELIM and INDEXED_DELIM characters in the propertyName.
    Note, however, that the recommended solution for objects that implement Map but want their simple properties to come first is for those objects to override their get/put methods to implement that behaviour, and not to solve the problem by modifying the default behaviour of the PropertyUtilsBean class by overriding this method.
    Parameters:
    bean - Map bean
    propertyName - The property name
    value - the property value
    
    Throws:
    
    IllegalArgumentException - when the propertyName is regarded as being invalid.
    
    IllegalAccessException - just in case subclasses override this method to try to access real setter methods and find permission is denied.
    
    InvocationTargetException - just in case subclasses override this method to try to access real setter methods, and find it throws an exception when invoked.
    
    NoSuchMethodException - just in case subclasses override this method to try to access real setter methods, and want to fail if no simple method is available.
    Since:
    
    1.8.0
  - setProperty
```
public void setProperty(Object bean,
               String name,
               Object value)
                 throws IllegalAccessException,
                        InvocationTargetException,
                        NoSuchMethodException
```
    Set the value of the specified property of the specified bean, no matter which property reference format is used, with no type conversions.
    
    Parameters:
    bean - Bean whose property is to be modified
    name - Possibly indexed and/or nested name of the property to be modified
    value - Value to which this property is to be set
    
    Throws:
    
    IllegalAccessException - if the caller does not have access to the property accessor method
    
    IllegalArgumentException - if bean or name is null
    
    InvocationTargetException - if the property accessor method throws an exception
    
    NoSuchMethodException - if an accessor method for this propety cannot be found
  - setSimpleProperty
```
public void setSimpleProperty(Object bean,
                     String name,
                     Object value)
                       throws IllegalAccessException,
                              InvocationTargetException,
                              NoSuchMethodException
```
    Set the value of the specified simple property of the specified bean, with no type conversions.
    
    Parameters:
    bean - Bean whose property is to be modified
    name - Name of the property to be modified
    value - Value to which the property should be set
    
    Throws:
    
    IllegalAccessException - if the caller does not have access to the property accessor method
    
    IllegalArgumentException - if bean or name is null
    
    IllegalArgumentException - if the property name is nested or indexed
    
    InvocationTargetException - if the property accessor method throws an exception
    
    NoSuchMethodException - if an accessor method for this propety cannot be found

Class PropertyUtilsBean

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

PropertyUtilsBean

Method Detail

getInstance

getResolver

setResolver

resetBeanIntrospectors

addBeanIntrospector

removeBeanIntrospector

clearDescriptors

copyProperties

describe

getIndexedProperty

getIndexedProperty

getMappedProperty

getMappedProperty

getMappedPropertyDescriptors

getMappedPropertyDescriptors

getNestedProperty

getPropertyOfMapBean

getProperty

getPropertyDescriptor

getPropertyDescriptors

getPropertyDescriptors

getPropertyEditorClass

getPropertyType

getReadMethod

getSimpleProperty

getWriteMethod

getWriteMethod

isReadable

isWriteable

setIndexedProperty

setIndexedProperty

setMappedProperty

setMappedProperty

setNestedProperty

setPropertyOfMapBean

setProperty

setSimpleProperty