org.modeshape.graph.query.model
Class ReferenceValue

java.lang.Object
  org.modeshape.graph.query.model.ReferenceValue

All Implemented Interfaces:

Serializable, DynamicOperand, LanguageObject, Visitable

Direct Known Subclasses:

JcrReferenceValue

@Immutable
public class ReferenceValue
extends Object
implements DynamicOperand

A dynamic operand that evaluates to the value(s) of a single or any reference property on a selector, used in a Comparison constraint.

See Also:

Serialized Form

Constructor Summary

ReferenceValue(SelectorName selectorName)
Create a dynamic operand that evaluates to all of the reference values of the node identified by the selector.

ReferenceValue(SelectorName selectorName, String propertyName)
Create a dynamic operand that evaluates to the values of a single reference property of the node identified by the selector.

ReferenceValue(SelectorName selectorName, String propertyName, boolean includeWeakReferences)
Create a dynamic operand that evaluates to the values of a single reference property of the node identified by the selector.

Method Summary

void	accept(Visitor visitor) Accept the supplied visitor, which should call back to the visitor to complete the double-dispatch operation.
boolean	equals(Object obj)
int	hashCode()
boolean	includesWeakReferences() Get whether weak references should be included.
String	propertyName() Get the name of the one reference property.
SelectorName	selectorName() Get the selector symbol upon which this operand applies.
Set<SelectorName>	selectorNames() Get the selector symbols to which this operand applies.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

ReferenceValue

public ReferenceValue(SelectorName selectorName)

Create a dynamic operand that evaluates to all of the reference values of the node identified by the selector.

Parameters:

selectorName - the name of the selector

Throws:

IllegalArgumentException - if the selector name is null

ReferenceValue

public ReferenceValue(SelectorName selectorName,
                      String propertyName,
                      boolean includeWeakReferences)

Create a dynamic operand that evaluates to the values of a single reference property of the node identified by the selector.

Parameters:

selectorName - the name of the selector

propertyName - the name of the property

includeWeakReferences - true if weak references are to be included

Throws:

IllegalArgumentException - if the selector name is null

ReferenceValue

public ReferenceValue(SelectorName selectorName,
                      String propertyName)

Create a dynamic operand that evaluates to the values of a single reference property of the node identified by the selector.

Parameters:

selectorName - the name of the selector

propertyName - the name of the property

Throws:

IllegalArgumentException - if the selector name is null

Method Detail

selectorName

public SelectorName selectorName()

Get the selector symbol upon which this operand applies.

Returns:

the one selector names used by this operand; never null

selectorNames

public Set<SelectorName> selectorNames()

Get the selector symbols to which this operand applies.

Specified by:

selectorNames in interface DynamicOperand

Returns:

the immutable ordered set of non-null selector names used by this operand; never null and never empty

See Also:

DynamicOperand.selectorNames()

propertyName

public final String propertyName()

Get the name of the one reference property.

Returns:

the property name; or null if this operand applies to any reference property

includesWeakReferences

public boolean includesWeakReferences()

Get whether weak references should be included.

Returns:

true if weak references should be included, or false otherwise

toString

public String toString()

Overrides:

toString in class Object

See Also:

Object.toString()

hashCode

public int hashCode()

Overrides:

hashCode in class Object

See Also:

Object.hashCode()

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

See Also:

Object.equals(java.lang.Object)

accept

public void accept(Visitor visitor)

Accept the supplied visitor, which should call back to the visitor to complete the double-dispatch operation.

Specified by:

accept in interface Visitable

Parameters:

visitor - the visitor; never null

See Also:

Visitable.accept(org.modeshape.graph.query.model.Visitor)