net.sf.ehcache.search.expression
Class ComparableValue

java.lang.Object
  net.sf.ehcache.search.expression.BaseCriteria
      net.sf.ehcache.search.expression.ComparableValue

All Implemented Interfaces:

Criteria

Direct Known Subclasses:

Between, GreaterThan, GreaterThanOrEqual, LessThan, LessThanOrEqual

public abstract class ComparableValue
extends BaseCriteria

Abstract base class for criteria involving Comparable values

Author:

teck

Constructor Summary

ComparableValue(String attributeName, AttributeType type)
Constructor

ComparableValue(String attributeName, Object value)
Constructor

Method Summary

boolean	execute(Element e, Map<String,AttributeExtractor> attributeExtractors) Test this criteria against a cache element
protected abstract boolean	executeComparable(Comparable attributeValue) Execute this criteria for the given Comparable attribute value
protected abstract boolean	executeComparableString(Comparable attributeValue) Execute this criteria for the given Comparable strin type attribute value
String	getAttributeName() Attribute name.
Set<Attribute<?>>	getAttributes() Returns all search attributes referenced by this instance
AttributeType	getType() Attribute type.
protected static int	luceneStringCompare(String s1, String s2) Perform a Lucene compatible case insensitive string comparison.

Methods inherited from class net.sf.ehcache.search.expression.BaseCriteria

and, getExtractor, not, or

Methods inherited from class java.lang.Object

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

Constructor Detail

ComparableValue

public ComparableValue(String attributeName,
                       Object value)

Constructor

Parameters:

attributeName - attribute name

value - comparable value (used to infer type)

ComparableValue

public ComparableValue(String attributeName,
                       AttributeType type)

Constructor

Parameters:

attributeName - attribute name

type - the expeceted type for values evaluated by this criteria

Method Detail

getAttributeName

public String getAttributeName()

Attribute name.

Returns:

name

getType

public AttributeType getType()

Attribute type.

Returns:

type

execute

public boolean execute(Element e,
                       Map<String,AttributeExtractor> attributeExtractors)

Test this criteria against a cache element

Parameters:

e - cache element

attributeExtractors - map of attribute extractors to attribute value names

Returns:

true if the criteria matches this element

getAttributes

public Set<Attribute<?>> getAttributes()

Description copied from class: BaseCriteria

Returns all search attributes referenced by this instance

Specified by:

getAttributes in class BaseCriteria

executeComparable

protected abstract boolean executeComparable(Comparable attributeValue)

Execute this criteria for the given Comparable attribute value

Parameters:

attributeValue - Comparable attribute value

Returns:

true if criteria is met

executeComparableString

protected abstract boolean executeComparableString(Comparable attributeValue)

Execute this criteria for the given Comparable strin type attribute value

Parameters:

attributeValue - Comparable attribute value

Returns:

true if criteria is met

luceneStringCompare

protected static int luceneStringCompare(String s1,
                                         String s2)

Perform a Lucene compatible case insensitive string comparison.

Parameters:

s1 - first string

s2 - second string

Returns:

the comparison result