org.modeshape.graph.query.model
Class PropertyExistence

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

@Immutable
public class PropertyExistence
extends 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)
          
 String getPropertyName()
          Get the name of the property.
 SelectorName getSelectorName()
          Get the name of the selector.
 int hashCode()
          
 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

getSelectorName

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

Returns:
the selector name; never null

getPropertyName

public final String getPropertyName()
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.

Parameters:
visitor - the visitor; never null
See Also:
Visitable.accept(org.modeshape.graph.query.model.Visitor)


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