org.apache.commons.lang.mutable
Class MutableBoolean

java.lang.Object
  extended by org.apache.commons.lang.mutable.MutableBoolean
All Implemented Interfaces:
Serializable, Comparable, Mutable

public class MutableBoolean
extends Object
implements Mutable, Serializable, Comparable

A mutable boolean wrapper.

Since:
2.2
Version:
$Id: MutableBoolean.java 905707 2010-02-02 16:59:59Z niallp $
Author:
Apache Software Foundation
See Also:
Boolean, Serialized Form

Constructor Summary
MutableBoolean()
          Constructs a new MutableBoolean with the default value of false.
MutableBoolean(boolean value)
          Constructs a new MutableBoolean with the specified value.
MutableBoolean(Boolean value)
          Constructs a new MutableBoolean with the specified value.
 
Method Summary
 boolean booleanValue()
          Returns the value of this MutableBoolean as a boolean.
 int compareTo(Object obj)
          Compares this mutable to another in ascending order.
 boolean equals(Object obj)
          Compares this object to the specified object.
 Object getValue()
          Gets the value as a Boolean instance.
 int hashCode()
          Returns a suitable hash code for this mutable.
 boolean isFalse()
          Checks if the current value is false.
 boolean isTrue()
          Checks if the current value is true.
 void setValue(boolean value)
          Sets the value.
 void setValue(Object value)
          Sets the value from any Boolean instance.
 Boolean toBoolean()
          Gets this mutable as an instance of Boolean.
 String toString()
          Returns the String value of this mutable.
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
 

Constructor Detail

MutableBoolean

public MutableBoolean()
Constructs a new MutableBoolean with the default value of false.


MutableBoolean

public MutableBoolean(boolean value)
Constructs a new MutableBoolean with the specified value.

Parameters:
value - the initial value to store

MutableBoolean

public MutableBoolean(Boolean value)
Constructs a new MutableBoolean with the specified value.

Parameters:
value - the initial value to store, not null
Throws:
NullPointerException - if the object is null
Method Detail

getValue

public Object getValue()
Gets the value as a Boolean instance.

Specified by:
getValue in interface Mutable
Returns:
the value as a Boolean, never null

setValue

public void setValue(boolean value)
Sets the value.

Parameters:
value - the value to set

setValue

public void setValue(Object value)
Sets the value from any Boolean instance.

Specified by:
setValue in interface Mutable
Parameters:
value - the value to set, not null
Throws:
NullPointerException - if the object is null

isTrue

public boolean isTrue()
Checks if the current value is true.

Returns:
true if the current value is true
Since:
2.5

isFalse

public boolean isFalse()
Checks if the current value is false.

Returns:
true if the current value is false
Since:
2.5

booleanValue

public boolean booleanValue()
Returns the value of this MutableBoolean as a boolean.

Returns:
the boolean value represented by this object.

toBoolean

public Boolean toBoolean()
Gets this mutable as an instance of Boolean.

Returns:
a Boolean instance containing the value from this mutable, never null
Since:
2.5

equals

public boolean equals(Object obj)
Compares this object to the specified object. The result is true if and only if the argument is not null and is an MutableBoolean object that contains the same boolean value as this object.

Overrides:
equals in class Object
Parameters:
obj - the object to compare with, null returns false
Returns:
true if the objects are the same; false otherwise.

hashCode

public int hashCode()
Returns a suitable hash code for this mutable.

Overrides:
hashCode in class Object
Returns:
the hash code returned by Boolean.TRUE or Boolean.FALSE

compareTo

public int compareTo(Object obj)
Compares this mutable to another in ascending order.

Specified by:
compareTo in interface Comparable
Parameters:
obj - the other mutable to compare to, not null
Returns:
negative if this is less, zero if equal, positive if greater where false is less than true

toString

public String toString()
Returns the String value of this mutable.

Overrides:
toString in class Object
Returns:
the mutable value as a string


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