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

Interface PreparedStatementCache

All Known Implementing Classes:

MapPreparedStatementCache

public interface PreparedStatementCache

Cache interface to synchronously prepare CQL statements.

Implementing classes of PreparedStatementCache come with own synchronization and cache implementation characteristics. A cache implementation should optimize for reduction of preparation calls and cache statements using Cassandras cache key which is specific to the Cluster, keyspace, and CQL text.

Since:

2.0

Author:

Mark Paluch

See Also:

PreparedStatement

Method Summary

Modifier and Type	Method and Description
static PreparedStatementCache	create() Create a default cache backed by a ConcurrentHashMap.
default com.datastax.driver.core.PreparedStatement	getPreparedStatement(com.datastax.driver.core.Session session, com.datastax.driver.core.RegularStatement statement) Obtain a PreparedStatement by Session and RegularStatement.
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.

Method Detail

create

static PreparedStatementCache create()

Create a default cache backed by a ConcurrentHashMap.

Returns:

a new MapPreparedStatementCache.

getPreparedStatement

default com.datastax.driver.core.PreparedStatement getPreparedStatement(com.datastax.driver.core.Session session,
                                                                        com.datastax.driver.core.RegularStatement statement)

Obtain a PreparedStatement by Session and RegularStatement.

Parameters:

session - must not be null.

statement - must not be null.

Returns:

the PreparedStatement.

getPreparedStatement

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.

Parameters:

session - must not be null.

statement - must not be null.

preparer - must not be null.

Returns:

the PreparedStatement.