org.modeshape.graph.query.model
Class PropertyExistence

java.lang.Object
  extended by org.modeshape.graph.query.model.PropertyExistence
All Implemented Interfaces:
Serializable, Constraint, LanguageObject, Visitable
Direct Known Subclasses:
JcrPropertyExistence

@Immutable
public class PropertyExistence
extends Object
implements Constraint

A constraint that evaluates to true only when a named property exists on a node.

See Also:
Serialized Form

Constructor Summary
PropertyExistence(SelectorName selectorName, String propertyName)
          Create a constraint requiring that a property exist on a node.
 
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()
          
 String propertyName()
          Get the name of the property.
 SelectorName selectorName()
          Get the name of the selector.
 String toString()
          
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
 

Constructor Detail

PropertyExistence

public PropertyExistence(SelectorName selectorName,
                         String propertyName)
Create a constraint requiring that a property exist on a node.

Parameters:
selectorName - the name of the node selector
propertyName - the name of the property that must exist
Method Detail

selectorName

public final SelectorName selectorName()
Get the name of the selector.

Returns:
the selector name; never null

propertyName

public final String propertyName()
Get the name of the property.

Returns:
the property name; never null

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)


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