org.apache.jackrabbit.commons.predicate

Class RowPredicate

java.lang.Object

org.apache.jackrabbit.commons.predicate.RowPredicate

All Implemented Interfaces:

Predicate

public class RowPredicate
extends java.lang.Object
implements Predicate

Predicate for checking whether a given object is a Row and optionally whether it contains a given selector. Subclasses can extend this class to provide more complex checking of the row or the selected node.

Since:

Apache Jackrabbit 2.2

Field Summary

Fields inherited from interface org.apache.jackrabbit.commons.predicate.Predicate

FALSE, TRUE

Constructor Summary

Constructors

Constructor and Description
RowPredicate() Creates a row predicate.
RowPredicate(java.lang.String selectorName) Creates a row predicate that checks the existence of the given selector (if given).

Method Summary

Modifier and Type	Method and Description
boolean	evaluate(java.lang.Object object) Checks whether the given object is a Row and calls the protected evaluate(Row) method to evaluate the row.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

RowPredicate

public RowPredicate(java.lang.String selectorName)

Creates a row predicate that checks the existence of the given selector (if given).

Parameters:

selectorName - selector name, or null

RowPredicate

public RowPredicate()

Creates a row predicate.

Method Detail

evaluate

public boolean evaluate(java.lang.Object object)

Checks whether the given object is a Row and calls the protected evaluate(Row) method to evaluate the row.

Specified by:

evaluate in interface Predicate

Parameters:

object - some object

Returns:

predicate result