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com.sun.xacml.attr
Class BooleanAttribute  

java.lang.Object
  com.sun.xacml.attr.AttributeValue
      com.sun.xacml.attr.BooleanAttribute

All Implemented Interfaces:

com.sun.xacml.cond.Evaluatable

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public class BooleanAttribute

extends AttributeValue

Representation of an xs:boolean value. This class supports parsing xs:boolean values. All objects of this class are immutable and all methods of the class are thread-safe.

Since:

1.0

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Field Summary
private static java.lang.RuntimeException	earlyException           RuntimeException that wraps an Exception thrown during the creation of identifierURI, null if none.
private static BooleanAttribute	falseInstance           Single instance of BooleanAttribute that represents false.
static java.lang.String	identifier           Official name of this type
private static java.net.URI	identifierURI           URI version of name for this type
private static BooleanAttribute	trueInstance           Single instance of BooleanAttribute that represents true.
private  boolean	value           The actual boolean value that this object represents.

 

Fields inherited from class com.sun.xacml.attr.AttributeValue

 

Constructor Summary
private	BooleanAttribute(boolean value)           Creates a new BooleanAttribute that represents the boolean value supplied.

 

Method Summary
java.lang.String	encode()           Encodes the value in a form suitable for including in XML data like a request or an obligation.
boolean	equals(java.lang.Object o)           Returns true if the input is an instance of this class and if its value equals the value contained in this class.
static BooleanAttribute	getFalseInstance()           Returns a BooleanAttribute that represents a false value.
static BooleanAttribute	getInstance(boolean value)           Returns a BooleanAttribute that represents the boolean value provided.
static BooleanAttribute	getInstance(org.w3c.dom.Node root)           Returns a BooleanAttribute that represents the xs:boolean at a particular DOM node.
static BooleanAttribute	getInstance(java.lang.String value)           Returns a BooleanAttribute that represents the xs:boolean value indicated by the string provided.
static BooleanAttribute	getTrueInstance()           Returns a BooleanAttribute that represents a true value.
boolean	getValue()           Returns the boolean value represented by this object.
int	hashCode()           Returns the hashcode value used to index and compare this object with others of the same type.

 

Methods inherited from class com.sun.xacml.attr.AttributeValue

encode, encode, encodeWithTags, evaluate, evaluatesToBag, getChildren, getType, isBag

 

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

 

Field Detail

identifier

public static final java.lang.String identifier

Official name of this type

See Also:

Constant Field Values

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identifierURI

private static java.net.URI identifierURI

URI version of name for this type

This field is initialized by a static initializer so that we can catch any exceptions thrown by URI(String) and transform them into a RuntimeException, since this should never happen but should be reported properly if it ever does.

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earlyException

private static java.lang.RuntimeException earlyException

RuntimeException that wraps an Exception thrown during the creation of identifierURI, null if none.

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trueInstance

private static BooleanAttribute trueInstance

Single instance of BooleanAttribute that represents true. Initialized by the static initializer below.

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falseInstance

private static BooleanAttribute falseInstance

Single instance of BooleanAttribute that represents false. Initialized by the static initializer below.

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value

private boolean value

The actual boolean value that this object represents.

Constructor Detail

BooleanAttribute

private BooleanAttribute(boolean value)

Creates a new BooleanAttribute that represents the boolean value supplied.

This constructor is private because it should not be used by anyone other than the static initializer in this class. Instead, please use one of the getInstance methods, which will ensure that only two BooleanAttribute objects are created, thus avoiding excess object creation.

Method Detail

getInstance

public static BooleanAttribute getInstance(org.w3c.dom.Node root)
                                    throws com.sun.xacml.ParsingException

Returns a BooleanAttribute that represents the xs:boolean at a particular DOM node.

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getInstance

public static BooleanAttribute getInstance(java.lang.String value)
                                    throws com.sun.xacml.ParsingException

Returns a BooleanAttribute that represents the xs:boolean value indicated by the string provided.

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getInstance

public static BooleanAttribute getInstance(boolean value)

Returns a BooleanAttribute that represents the boolean value provided.

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getTrueInstance

public static BooleanAttribute getTrueInstance()

Returns a BooleanAttribute that represents a true value.

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getFalseInstance

public static BooleanAttribute getFalseInstance()

Returns a BooleanAttribute that represents a false value.

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getValue

public boolean getValue()

Returns the boolean value represented by this object.

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equals

public boolean equals(java.lang.Object o)

Returns true if the input is an instance of this class and if its value equals the value contained in this class.

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hashCode

public int hashCode()

Returns the hashcode value used to index and compare this object with others of the same type. Typically this is the hashcode of the backing data object.

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encode

public java.lang.String encode()

Description copied from class: AttributeValue

Encodes the value in a form suitable for including in XML data like a request or an obligation. This must return a value that could in turn be used by the factory to create a new instance with the same value.

Specified by:

encode in class AttributeValue

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