org.modeshape.graph.query.model
Class PropertyExistence

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

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)