Package org.infinispan.query.core.impl

Class QueryCache

java.lang.Object

org.infinispan.query.core.impl.QueryCache

@ThreadSafe
public final class QueryCache
extends Object

A local cache for 'parsed' queries. Each cache manager has at most one QueryCache which is backed by a lazily created Cache.

Since:

7.0

Author:

anistor@redhat.com

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	QueryCache.QueryCreator<Q>

Field Summary

Fields

Modifier and Type	Field	Description
static final String	QUERY_CACHE_NAME	Users can define a cache configuration with this name if they need to fine tune query caching.

Constructor Summary

Constructors

Constructor	Description
QueryCache()

Method Summary

Modifier and Type	Method	Description
void	clear()
void	clear(String cacheName)
<T> T	get(String cacheName, String queryString, List<org.infinispan.objectfilter.impl.aggregation.FieldAccumulator> accumulators, Object queryTypeDiscriminator, QueryCache.QueryCreator<T> queryCreator)	Gets the cached query object.

Methods inherited from class java.lang.Object

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

Field Details

QUERY_CACHE_NAME

public static final String QUERY_CACHE_NAME

Users can define a cache configuration with this name if they need to fine tune query caching. If they do not do so a default config is used (see getQueryCacheConfig()).

See Also:

• Constant Field Values

Constructor Details

QueryCache

public QueryCache()

Method Details

get

public <T> T get(String cacheName,
 String queryString,
 List<org.infinispan.objectfilter.impl.aggregation.FieldAccumulator> accumulators,
 Object queryTypeDiscriminator,
 QueryCache.QueryCreator<T> queryCreator)

Gets the cached query object. The key used for lookup is an object pair containing the query string and a discriminator value which is usually the Class of the cached query object and an optional List of FieldAccumulators.

clear

public void clear()

clear

public void clear(String cacheName)