org.apache.jackrabbit.core.query.lucene.constraint
Class LikeConstraint

java.lang.Object
  org.apache.jackrabbit.core.query.lucene.constraint.SelectorBasedConstraint
      org.apache.jackrabbit.core.query.lucene.constraint.ComparisonConstraint
          org.apache.jackrabbit.core.query.lucene.constraint.LikeConstraint

All Implemented Interfaces:

Constraint, QueryObjectModelConstants

public class LikeConstraint
extends ComparisonConstraint

LikeConstraint implements a like constraint.

Field Summary

Fields inherited from interface org.apache.jackrabbit.spi.commons.query.jsr283.qom.QueryObjectModelConstants

JOIN_TYPE_INNER, JOIN_TYPE_LEFT_OUTER, JOIN_TYPE_RIGHT_OUTER, OPERATOR_EQUAL_TO, OPERATOR_GREATER_THAN, OPERATOR_GREATER_THAN_OR_EQUAL_TO, OPERATOR_LESS_THAN, OPERATOR_LESS_THAN_OR_EQUAL_TO, OPERATOR_LIKE, OPERATOR_NOT_EQUAL_TO, ORDER_ASCENDING, ORDER_DESCENDING

Constructor Summary

LikeConstraint(DynamicOperand operand1, Value operand2, SelectorImpl selector)
Creates a new like constraint.

Method Summary

protected boolean

evaluate(Value op1) Evaluates this constraint for the given dynamic operand value op1.

Methods inherited from class org.apache.jackrabbit.core.query.lucene.constraint.ComparisonConstraint

evaluate

Methods inherited from class org.apache.jackrabbit.core.query.lucene.constraint.SelectorBasedConstraint

getSelector, getSelectorIndex

Methods inherited from class java.lang.Object

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

Constructor Detail

LikeConstraint

public LikeConstraint(DynamicOperand operand1,
                      Value operand2,
                      SelectorImpl selector)
               throws RepositoryException

Creates a new like constraint.

Parameters:

operand1 - the dynamic operand.

operand2 - the static operand.

selector - the selector for the dynamic operand.

Throws:

RepositoryException - if an error occurs reading the string value from the static operand.

Method Detail

evaluate

protected boolean evaluate(Value op1)
                    throws RepositoryException

Evaluates this constraint for the given dynamic operand value op1.

Overrides:

evaluate in class ComparisonConstraint

Parameters:

op1 - the current value of the dynamic operand.

Returns:

true if the given value satisfies the constraint.

Throws:

RepositoryException - if an error occurs while converting the values.