org.apache.commons.digester
Class FactoryCreateRule

java.lang.Object
  |
  +--org.apache.commons.digester.Rule
        |
        +--org.apache.commons.digester.FactoryCreateRule

public class FactoryCreateRule
extends Rule

Rule implementation that uses an ObjectCreationFactory to create a new object which it pushes onto the object stack. When the element is complete, the object will be popped.

This rule is intended in situations where the element's attributes are needed before the object can be created. A common senario is for the ObjectCreationFactory implementation to use the attributes as parameters in a call to either a factory method or to a non-empty constructor.


Field Summary
protected  java.lang.String attributeName
          The attribute containing an override class name if it is present.
protected  java.lang.String className
          The Java class name of the ObjectCreationFactory to be created.
protected  ObjectCreationFactory creationFactory
          The object creation factory we will use to instantiate objects as required based on the attributes specified in the matched XML element.
private  org.apache.commons.collections.ArrayStack exceptionIgnoredStack
          Stock to manage
private  boolean ignoreCreateExceptions
          Should exceptions thrown by the factory be ignored?
 
Fields inherited from class org.apache.commons.digester.Rule
digester, namespaceURI
 
Constructor Summary
FactoryCreateRule(java.lang.Class clazz)
          Construct a factory create rule that will use the specified class to create an ObjectCreationFactory which will then be used to create an object and push it on the stack.
FactoryCreateRule(java.lang.Class clazz, boolean ignoreCreateExceptions)
          Construct a factory create rule that will use the specified class to create an ObjectCreationFactory which will then be used to create an object and push it on the stack.
FactoryCreateRule(java.lang.Class clazz, java.lang.String attributeName)
          Construct a factory create rule that will use the specified class (possibly overridden by the specified attribute if present) to create an ObjectCreationFactory, which will then be used to instantiate an object instance and push it onto the stack.
FactoryCreateRule(java.lang.Class clazz, java.lang.String attributeName, boolean ignoreCreateExceptions)
          Construct a factory create rule that will use the specified class (possibly overridden by the specified attribute if present) to create an ObjectCreationFactory, which will then be used to instantiate an object instance and push it onto the stack.
FactoryCreateRule(Digester digester, java.lang.Class clazz)
          Deprecated. The digester instance is now set in the Digester.addRule(java.lang.String, org.apache.commons.digester.Rule) method. Use FactoryCreateRule(Class clazz) instead.
FactoryCreateRule(Digester digester, java.lang.Class clazz, java.lang.String attributeName)
          Deprecated. The digester instance is now set in the Digester.addRule(java.lang.String, org.apache.commons.digester.Rule) method. Use FactoryCreateRule(Class clazz, String attributeName) instead.
FactoryCreateRule(Digester digester, ObjectCreationFactory creationFactory)
          Deprecated. The digester instance is now set in the Digester.addRule(java.lang.String, org.apache.commons.digester.Rule) method. Use FactoryCreateRule(ObjectCreationFactory creationFactory) instead.
FactoryCreateRule(Digester digester, java.lang.String className)
          Deprecated. The digester instance is now set in the Digester.addRule(java.lang.String, org.apache.commons.digester.Rule) method. Use FactoryCreateRule(String className) instead.
FactoryCreateRule(Digester digester, java.lang.String className, java.lang.String attributeName)
          Deprecated. The digester instance is now set in the Digester.addRule(java.lang.String, org.apache.commons.digester.Rule) method. Use FactoryCreateRule(String className, String attributeName) instead.
FactoryCreateRule(ObjectCreationFactory creationFactory)
          Construct a factory create rule using the given, already instantiated, ObjectCreationFactory.
FactoryCreateRule(ObjectCreationFactory creationFactory, boolean ignoreCreateExceptions)
          Construct a factory create rule using the given, already instantiated, ObjectCreationFactory.
FactoryCreateRule(java.lang.String className)
          Construct a factory create rule that will use the specified class name to create an ObjectCreationFactory which will then be used to create an object and push it on the stack.
FactoryCreateRule(java.lang.String className, boolean ignoreCreateExceptions)
          Construct a factory create rule that will use the specified class name to create an ObjectCreationFactory which will then be used to create an object and push it on the stack.
FactoryCreateRule(java.lang.String className, java.lang.String attributeName)
          Construct a factory create rule that will use the specified class name (possibly overridden by the specified attribute if present) to create an ObjectCreationFactory, which will then be used to instantiate an object instance and push it onto the stack.
FactoryCreateRule(java.lang.String className, java.lang.String attributeName, boolean ignoreCreateExceptions)
          Construct a factory create rule that will use the specified class name (possibly overridden by the specified attribute if present) to create an ObjectCreationFactory, which will then be used to instantiate an object instance and push it onto the stack.
 
Method Summary
 void begin(java.lang.String namespace, java.lang.String name, org.xml.sax.Attributes attributes)
          Process the beginning of this element.
 void end(java.lang.String namespace, java.lang.String name)
          Process the end of this element.
 void finish()
          Clean up after parsing is complete.
protected  ObjectCreationFactory getFactory(org.xml.sax.Attributes attributes)
          Return an instance of our associated object creation factory, creating one if necessary.
 java.lang.String toString()
          Render a printable version of this Rule.
 
Methods inherited from class org.apache.commons.digester.Rule
begin, body, body, end, getDigester, getNamespaceURI, setDigester, setNamespaceURI
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Field Detail

ignoreCreateExceptions

private boolean ignoreCreateExceptions
Should exceptions thrown by the factory be ignored?


exceptionIgnoredStack

private org.apache.commons.collections.ArrayStack exceptionIgnoredStack
Stock to manage


attributeName

protected java.lang.String attributeName
The attribute containing an override class name if it is present.


className

protected java.lang.String className
The Java class name of the ObjectCreationFactory to be created. This class must have a no-arguments constructor.


creationFactory

protected ObjectCreationFactory creationFactory
The object creation factory we will use to instantiate objects as required based on the attributes specified in the matched XML element.

Constructor Detail

FactoryCreateRule

public FactoryCreateRule(Digester digester,
                         java.lang.String className)
Deprecated. The digester instance is now set in the Digester.addRule(java.lang.String, org.apache.commons.digester.Rule) method. Use FactoryCreateRule(String className) instead.

Construct a factory create rule that will use the specified class name to create an ObjectCreationFactory which will then be used to create an object and push it on the stack.

Parameters:
digester - The associated Digester
className - Java class name of the object creation factory class

FactoryCreateRule

public FactoryCreateRule(Digester digester,
                         java.lang.Class clazz)
Deprecated. The digester instance is now set in the Digester.addRule(java.lang.String, org.apache.commons.digester.Rule) method. Use FactoryCreateRule(Class clazz) instead.

Construct a factory create rule that will use the specified class to create an ObjectCreationFactory which will then be used to create an object and push it on the stack.

Parameters:
digester - The associated Digester
clazz - Java class name of the object creation factory class

FactoryCreateRule

public FactoryCreateRule(Digester digester,
                         java.lang.String className,
                         java.lang.String attributeName)
Deprecated. The digester instance is now set in the Digester.addRule(java.lang.String, org.apache.commons.digester.Rule) method. Use FactoryCreateRule(String className, String attributeName) instead.

Construct a factory create rule that will use the specified class name (possibly overridden by the specified attribute if present) to create an ObjectCreationFactory, which will then be used to instantiate an object instance and push it onto the stack.

Parameters:
digester - The associated Digester
className - Default Java class name of the factory class
attributeName - Attribute name which, if present, contains an override of the class name of the object creation factory to create.

FactoryCreateRule

public FactoryCreateRule(Digester digester,
                         java.lang.Class clazz,
                         java.lang.String attributeName)
Deprecated. The digester instance is now set in the Digester.addRule(java.lang.String, org.apache.commons.digester.Rule) method. Use FactoryCreateRule(Class clazz, String attributeName) instead.

Construct a factory create rule that will use the specified class (possibly overridden by the specified attribute if present) to create an ObjectCreationFactory, which will then be used to instantiate an object instance and push it onto the stack.

Parameters:
digester - The associated Digester
clazz - Default Java class name of the factory class
attributeName - Attribute name which, if present, contains an override of the class name of the object creation factory to create.

FactoryCreateRule

public FactoryCreateRule(Digester digester,
                         ObjectCreationFactory creationFactory)
Deprecated. The digester instance is now set in the Digester.addRule(java.lang.String, org.apache.commons.digester.Rule) method. Use FactoryCreateRule(ObjectCreationFactory creationFactory) instead.

Construct a factory create rule using the given, already instantiated, ObjectCreationFactory.

Parameters:
digester - The associated Digester
creationFactory - called on to create the object.

FactoryCreateRule

public FactoryCreateRule(java.lang.String className)

Construct a factory create rule that will use the specified class name to create an ObjectCreationFactory which will then be used to create an object and push it on the stack.

Exceptions thrown during the object creation process will be propagated.

Parameters:
className - Java class name of the object creation factory class

FactoryCreateRule

public FactoryCreateRule(java.lang.Class clazz)

Construct a factory create rule that will use the specified class to create an ObjectCreationFactory which will then be used to create an object and push it on the stack.

Exceptions thrown during the object creation process will be propagated.

Parameters:
clazz - Java class name of the object creation factory class

FactoryCreateRule

public FactoryCreateRule(java.lang.String className,
                         java.lang.String attributeName)

Construct a factory create rule that will use the specified class name (possibly overridden by the specified attribute if present) to create an ObjectCreationFactory, which will then be used to instantiate an object instance and push it onto the stack.

Exceptions thrown during the object creation process will be propagated.

Parameters:
className - Default Java class name of the factory class
attributeName - Attribute name which, if present, contains an override of the class name of the object creation factory to create.

FactoryCreateRule

public FactoryCreateRule(java.lang.Class clazz,
                         java.lang.String attributeName)

Construct a factory create rule that will use the specified class (possibly overridden by the specified attribute if present) to create an ObjectCreationFactory, which will then be used to instantiate an object instance and push it onto the stack.

Exceptions thrown during the object creation process will be propagated.

Parameters:
clazz - Default Java class name of the factory class
attributeName - Attribute name which, if present, contains an override of the class name of the object creation factory to create.

FactoryCreateRule

public FactoryCreateRule(ObjectCreationFactory creationFactory)

Construct a factory create rule using the given, already instantiated, ObjectCreationFactory.

Exceptions thrown during the object creation process will be propagated.

Parameters:
creationFactory - called on to create the object.

FactoryCreateRule

public FactoryCreateRule(java.lang.String className,
                         boolean ignoreCreateExceptions)
Construct a factory create rule that will use the specified class name to create an ObjectCreationFactory which will then be used to create an object and push it on the stack.

Parameters:
className - Java class name of the object creation factory class
ignoreCreateExceptions - if true, exceptions thrown by the object creation factory will be ignored.

FactoryCreateRule

public FactoryCreateRule(java.lang.Class clazz,
                         boolean ignoreCreateExceptions)
Construct a factory create rule that will use the specified class to create an ObjectCreationFactory which will then be used to create an object and push it on the stack.

Parameters:
clazz - Java class name of the object creation factory class
ignoreCreateExceptions - if true, exceptions thrown by the object creation factory will be ignored.

FactoryCreateRule

public FactoryCreateRule(java.lang.String className,
                         java.lang.String attributeName,
                         boolean ignoreCreateExceptions)
Construct a factory create rule that will use the specified class name (possibly overridden by the specified attribute if present) to create an ObjectCreationFactory, which will then be used to instantiate an object instance and push it onto the stack.

Parameters:
className - Default Java class name of the factory class
attributeName - Attribute name which, if present, contains an override of the class name of the object creation factory to create.
ignoreCreateExceptions - if true, exceptions thrown by the object creation factory will be ignored.

FactoryCreateRule

public FactoryCreateRule(java.lang.Class clazz,
                         java.lang.String attributeName,
                         boolean ignoreCreateExceptions)
Construct a factory create rule that will use the specified class (possibly overridden by the specified attribute if present) to create an ObjectCreationFactory, which will then be used to instantiate an object instance and push it onto the stack.

Parameters:
clazz - Default Java class name of the factory class
attributeName - Attribute name which, if present, contains an override of the class name of the object creation factory to create.
ignoreCreateExceptions - if true, exceptions thrown by the object creation factory will be ignored.

FactoryCreateRule

public FactoryCreateRule(ObjectCreationFactory creationFactory,
                         boolean ignoreCreateExceptions)
Construct a factory create rule using the given, already instantiated, ObjectCreationFactory.

Parameters:
creationFactory - called on to create the object.
ignoreCreateExceptions - if true, exceptions thrown by the object creation factory will be ignored.
Method Detail

begin

public void begin(java.lang.String namespace,
                  java.lang.String name,
                  org.xml.sax.Attributes attributes)
           throws java.lang.Exception
Process the beginning of this element.

Overrides:
begin in class Rule
Parameters:
attributes - The attribute list of this element
namespace - the namespace URI of the matching element, or an empty string if the parser is not namespace aware or the element has no namespace
name - the local name if the parser is namespace aware, or just the element name otherwise
java.lang.Exception

end

public void end(java.lang.String namespace,
                java.lang.String name)
         throws java.lang.Exception
Process the end of this element.

Overrides:
end in class Rule
Parameters:
namespace - the namespace URI of the matching element, or an empty string if the parser is not namespace aware or the element has no namespace
name - the local name if the parser is namespace aware, or just the element name otherwise
java.lang.Exception

finish

public void finish()
            throws java.lang.Exception
Clean up after parsing is complete.

Overrides:
finish in class Rule
java.lang.Exception

toString

public java.lang.String toString()
Render a printable version of this Rule.

Overrides:
toString in class java.lang.Object

getFactory

protected ObjectCreationFactory getFactory(org.xml.sax.Attributes attributes)
                                    throws java.lang.Exception
Return an instance of our associated object creation factory, creating one if necessary.

Parameters:
attributes - Attributes passed to our factory creation element
Throws:
java.lang.Exception - if any error occurs


Copyright (c) 2001-2004 - Apache Software Foundation