Package org.springframework.data.cassandra.core.cql

Class CachedPreparedStatementCreator

java.lang.Object

org.springframework.data.cassandra.core.cql.CachedPreparedStatementCreator

All Implemented Interfaces:

PreparedStatementCreator

@Deprecated
public class CachedPreparedStatementCreator
extends Object
implements PreparedStatementCreator

Deprecated.

since 2.0. This class uses an unsafe, static held cache.

This PreparedStatementCreator maintains a static cache of all prepared statements for the duration of the JVM runtime, more specific the lifecycle of the associated ClassLoader. When preparing statements with Cassandra, each Statement should be prepared once and only once due to the overhead of preparing the statement.

CachedPreparedStatementCreator is thread-safe and does not require external synchronization when used by concurrent threads.

Author:

David Webb, Mark Paluch

Field Summary

Fields

Modifier and Type	Field	Description
protected final Log	log	Deprecated.

Constructor Summary

Constructors

Constructor	Description
CachedPreparedStatementCreator(String cql)	Deprecated. Create a PreparedStatementCreator from the provided CQL.

Method Summary

Modifier and Type	Method	Description
com.datastax.oss.driver.api.core.cql.PreparedStatement	createPreparedStatement(com.datastax.oss.driver.api.core.CqlSession session)	Deprecated. Create a statement in this session.
String	getCql()	Deprecated. Returns the CQL statement on which the PreparedStatement will be based.

Methods inherited from class java.lang.Object

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

Field Details

log

protected final Log log

Deprecated.

Constructor Details

CachedPreparedStatementCreator

public CachedPreparedStatementCreator(String cql)

Deprecated.

Create a PreparedStatementCreator from the provided CQL.

Parameters:

cql - must not be empty or null.

Method Details

getCql

public String getCql()

Deprecated.

Returns the CQL statement on which the PreparedStatement will be based.

Returns:

a String containing the CQL of the PreparedStatement.

createPreparedStatement

public com.datastax.oss.driver.api.core.cql.PreparedStatement createPreparedStatement(com.datastax.oss.driver.api.core.CqlSession session)
                                                                               throws com.datastax.oss.driver.api.core.DriverException

Deprecated.

Description copied from interface: PreparedStatementCreator

Create a statement in this session. Allows implementations to use PreparedStatement.

Specified by:

createPreparedStatement in interface PreparedStatementCreator

Parameters:

session - CqlSession to use to create statement.

Returns:

a prepared statement.

Throws:

com.datastax.oss.driver.api.core.DriverException - there is no need to catch DriverException that may be thrown in the implementation of this method. The CqlTemplate class will handle them.