org.jboss.dna.graph.query.model
Class NodeDepth

java.lang.Object
  extended by org.jboss.dna.graph.query.model.DynamicOperand
      extended by org.jboss.dna.graph.query.model.NodeDepth
All Implemented Interfaces:
Serializable, LanguageObject, Visitable

@Immutable
public class NodeDepth
extends DynamicOperand

A dynamic operand that evaluates to the depth of a node given by a selector, used in a Comparison constraint.

See Also:
Serialized Form

Constructor Summary
NodeDepth(SelectorName selectorName)
          Create a dynamic operand that evaluates to the depth 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)
          
 SelectorName getSelectorName()
          Get the selector symbol upon which this operand applies.
 int hashCode()
          
 String toString()
          
 
Methods inherited from class org.jboss.dna.graph.query.model.DynamicOperand
getSelectorNames
 
Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait
 

Constructor Detail

NodeDepth

public NodeDepth(SelectorName selectorName)
Create a dynamic operand that evaluates to the depth of the node identified by the selector.

Parameters:
selectorName - the name of the selector
Throws:
IllegalArgumentException - if the selector name or property name are null
Method Detail

getSelectorName

public SelectorName getSelectorName()
Get the selector symbol upon which this operand applies.

Returns:
the one selector names used by this operand; 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.jboss.dna.graph.query.model.Visitor)


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