org.apache.slide.search.basic.expression
Class LikeExpression

java.lang.Object
  org.apache.slide.search.basic.expression.BasicExpression
      org.apache.slide.search.basic.expression.GenericBasicExpression
          org.apache.slide.search.basic.expression.CompareExpression
              org.apache.slide.search.basic.expression.ComparePropertyExpression
                  org.apache.slide.search.basic.expression.LikeExpression

All Implemented Interfaces:

IBasicExpression

Direct Known Subclasses:

NotLikeExpression

public class LikeExpression

extends ComparePropertyExpression

Implements the like operator.

Field Summary

Fields inherited from class org.apache.slide.search.basic.expression.ComparePropertyExpression

comparedProperty

Fields inherited from class org.apache.slide.search.basic.expression.CompareExpression

propertyProvider, requestedResourcesPool

Fields inherited from class org.apache.slide.search.basic.expression.BasicExpression

expressionElement, expressionFactory, resultSet

Constructor Summary

LikeExpression(org.jdom.Element e, ComparableResourcesPool requestedResourcesPool)

Method Summary

protected boolean	compare(ComparableResource item) The concrete CompareExpression must overwrite this.
static void	main(java.lang.String[] args)
java.lang.String	toString()
static boolean	wildcardEquals(java.lang.String pattern, int patternIdx, java.lang.String string, int stringIdx) Determines if a word matches a wildcard pattern.

Methods inherited from class org.apache.slide.search.basic.expression.ComparePropertyExpression

getLiteral, toString

Methods inherited from class org.apache.slide.search.basic.expression.CompareExpression

execute, getRequestedResourcePool, setRequestedResourcePool

Methods inherited from class org.apache.slide.search.basic.expression.BasicExpression

getFactory, setFactory

Methods inherited from class java.lang.Object

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

Constructor Detail

LikeExpression

public LikeExpression(org.jdom.Element e,
                      ComparableResourcesPool requestedResourcesPool)
               throws InvalidQueryException

Method Detail

compare

protected boolean compare(ComparableResource item)

Description copied from class: ComparePropertyExpression

The concrete CompareExpression must overwrite this.

Specified by:

compare in class ComparePropertyExpression

Parameters:

item - one BasicDataItem out of pool

Returns:

a boolean

toString

public java.lang.String toString()

wildcardEquals

public static final boolean wildcardEquals(java.lang.String pattern,
                                           int patternIdx,
                                           java.lang.String string,
                                           int stringIdx)

Determines if a word matches a wildcard pattern. Taken from Lucenes WildcardTermEnum.

main

public static void main(java.lang.String[] args)