org.springframework.data.cassandra.core.cql.support

Class MapPreparedStatementCache

java.lang.Object

org.springframework.data.cassandra.core.cql.support.MapPreparedStatementCache

All Implemented Interfaces:

PreparedStatementCache

public class MapPreparedStatementCache
extends Object
implements PreparedStatementCache

PreparedStatementCache backed by a Map cache. Defaults to simple ConcurrentHashMap caching.

Statements are cached with a key consisting of Cluster, keyspace and the cql text. Statement options (idempotency, timeouts) apply from the statement that was initially prepared.

Since:

2.0

Author:

Mark Paluch

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected static class	MapPreparedStatementCache.CacheKey MapPreparedStatementCache.CacheKey for PreparedStatement caching.

Method Summary

Modifier and Type	Method and Description
static MapPreparedStatementCache	create() Create a MapPreparedStatementCache using ConcurrentHashMap.
protected Map<MapPreparedStatementCache.CacheKey,com.datastax.driver.core.PreparedStatement>	getCache()
com.datastax.driver.core.PreparedStatement	getPreparedStatement(com.datastax.driver.core.Session session, com.datastax.driver.core.RegularStatement statement, Supplier<com.datastax.driver.core.PreparedStatement> preparer) Obtain a PreparedStatement by Session and RegularStatement.
static MapPreparedStatementCache	of(Map<MapPreparedStatementCache.CacheKey,com.datastax.driver.core.PreparedStatement> cache) Create a MapPreparedStatementCache using the given Map.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.springframework.data.cassandra.core.cql.support.PreparedStatementCache

getPreparedStatement

Method Detail

create

public static MapPreparedStatementCache create()

Create a MapPreparedStatementCache using ConcurrentHashMap.

Specified by:

create in interface PreparedStatementCache

Returns:

the new MapPreparedStatementCache backed by ConcurrentHashMap.

of

public static MapPreparedStatementCache of(Map<MapPreparedStatementCache.CacheKey,com.datastax.driver.core.PreparedStatement> cache)

Create a MapPreparedStatementCache using the given Map.

Returns:

the new MapPreparedStatementCache backed the given Map.

getCache

protected Map<MapPreparedStatementCache.CacheKey,com.datastax.driver.core.PreparedStatement> getCache()

Returns:

the underlying cache.

getPreparedStatement

public com.datastax.driver.core.PreparedStatement getPreparedStatement(com.datastax.driver.core.Session session,
                                                                       com.datastax.driver.core.RegularStatement statement,
                                                                       Supplier<com.datastax.driver.core.PreparedStatement> preparer)

Description copied from interface: PreparedStatementCache

Obtain a PreparedStatement by Session and RegularStatement.

Specified by:

getPreparedStatement in interface PreparedStatementCache

Parameters:

session - must not be null.

statement - must not be null.

preparer - must not be null.

Returns:

the PreparedStatement.