Package org.infinispan.query.dsl.embedded.impl

Class IckleFilterAndConverter<K,V>

java.lang.Object

org.infinispan.filter.AbstractKeyValueFilterConverter<K,V,ObjectFilter.FilterResult>

org.infinispan.query.dsl.embedded.impl.IckleFilterAndConverter<K,V>

All Implemented Interfaces:

Function<Map.Entry<K,V>,ObjectFilter.FilterResult>, Converter<K,V,ObjectFilter.FilterResult>, KeyValueFilter<K,V>, KeyValueFilterConverter<K,V,ObjectFilter.FilterResult>

public class IckleFilterAndConverter<K,V>
extends AbstractKeyValueFilterConverter<K,V,ObjectFilter.FilterResult>
implements Function<Map.Entry<K,V>,ObjectFilter.FilterResult>

A filter implementation that is both a KeyValueFilter and a converter. The implementation relies on the Matcher and a Ickle query string.

Since:

7.0

Author:

anistor@redhat.com

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	IckleFilterAndConverter.FilterResultExternalizer
static class	IckleFilterAndConverter.IckleFilterAndConverterExternalizer

Field Summary

Fields

Modifier and Type	Field	Description
protected Class<? extends Matcher>	matcherImplClass	The implementation class of the Matcher component to lookup and use.

Constructor Summary

Constructors

Constructor	Description
IckleFilterAndConverter(String queryString, Map<String,Object> namedParameters, Class<? extends Matcher> matcherImplClass)

Method Summary

Modifier and Type	Method	Description
ObjectFilter.FilterResult	apply(Map.Entry<K,V> cacheEntry)
ObjectFilter.FilterResult	filterAndConvert(K key, V value, Metadata metadata)	Will both filter the entry and if passed subsequently convert the value to a new value.
Matcher	getMatcher()
Map<String,Object>	getNamedParameters()
ObjectFilter	getObjectFilter()
String	getQueryString()
protected void	injectDependencies(ComponentRegistry componentRegistry, QueryCache queryCache)	Acquires a Matcher instance from the ComponentRegistry of the given Cache object.
String	toString()

Methods inherited from class org.infinispan.filter.AbstractKeyValueFilterConverter

accept, convert

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.function.Function

andThen, compose

Methods inherited from interface org.infinispan.filter.KeyValueFilter

format

Field Detail

matcherImplClass

protected Class<? extends Matcher> matcherImplClass

The implementation class of the Matcher component to lookup and use.

Constructor Detail

IckleFilterAndConverter

public IckleFilterAndConverter(String queryString,
                               Map<String,Object> namedParameters,
                               Class<? extends Matcher> matcherImplClass)

Method Detail

injectDependencies

protected void injectDependencies(ComponentRegistry componentRegistry,
                                  QueryCache queryCache)

Acquires a Matcher instance from the ComponentRegistry of the given Cache object.

getObjectFilter

public ObjectFilter getObjectFilter()

getQueryString

public String getQueryString()

getNamedParameters

public Map<String,Object> getNamedParameters()

getMatcher

public Matcher getMatcher()

filterAndConvert

public ObjectFilter.FilterResult filterAndConvert(K key,
                                                  V value,
                                                  Metadata metadata)

Description copied from interface: KeyValueFilterConverter

Will both filter the entry and if passed subsequently convert the value to a new value. A returned value of null will symbolize the value not passing the filter, so ensure your conversion will not return null if you want this entry to be returned.

Specified by:

filterAndConvert in interface KeyValueFilterConverter<K,V,ObjectFilter.FilterResult>

Parameters:

key - The key of the entry to filter

value - The value of the entry to filter and then convert

metadata - The metadata attached to the entry

Returns:

The converted value or null if the filter didn't pass

apply

public ObjectFilter.FilterResult apply(Map.Entry<K,V> cacheEntry)

Specified by:

apply in interface Function<K,V>

toString

public String toString()

Overrides:

toString in class Object