org.springframework.data.cassandra.core

Class AsyncCassandraTemplate.PreparedStatementHandler

java.lang.Object

org.springframework.data.cassandra.core.AsyncCassandraTemplate.PreparedStatementHandler

All Implemented Interfaces:

AsyncCassandraTemplate.AsyncPreparedStatementHandler, AsyncPreparedStatementCreator, CqlProvider, PreparedStatementBinder

Enclosing class:

AsyncCassandraTemplate

public static class AsyncCassandraTemplate.PreparedStatementHandler
extends Object
implements AsyncCassandraTemplate.AsyncPreparedStatementHandler

Utility class to prepare a SimpleStatement and bind values associated with the statement to a BoundStatement.

Since:

3.2

Constructor Summary

Constructors

Constructor and Description
PreparedStatementHandler(com.datastax.oss.driver.api.core.cql.Statement<?> statement, PersistenceExceptionTranslator exceptionTranslator)

Method Summary

Modifier and Type	Method and Description
com.datastax.oss.driver.api.core.cql.BoundStatement	bindValues(com.datastax.oss.driver.api.core.cql.PreparedStatement ps) Bind parameter values on the given PreparedStatement.
ListenableFuture<com.datastax.oss.driver.api.core.cql.PreparedStatement>	createPreparedStatement(com.datastax.oss.driver.api.core.CqlSession session) Create a statement in this session.
protected CompletionStage<com.datastax.oss.driver.api.core.cql.PreparedStatement>	doPrepare(com.datastax.oss.driver.api.core.CqlSession session) Invokes the statement preparation.
String	getCql() Return the CQL string for this object, i.e. typically the CQL used for creating statements.

Methods inherited from class java.lang.Object

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

Constructor Detail

PreparedStatementHandler

public PreparedStatementHandler(com.datastax.oss.driver.api.core.cql.Statement<?> statement,
                                PersistenceExceptionTranslator exceptionTranslator)

Method Detail

createPreparedStatement

public ListenableFuture<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

Description copied from interface: AsyncPreparedStatementCreator

Create a statement in this session. Allows implementations to use PreparedStatements. The CqlTemplate will attempt to cache the PreparedStatements for future use without the overhead of re-preparing on the entire cluster.

Specified by:

createPreparedStatement in interface AsyncPreparedStatementCreator

Parameters:

session - Session to use to create statement, must not be null.

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 AsyncCqlTemplate class will handle them.

doPrepare

protected CompletionStage<com.datastax.oss.driver.api.core.cql.PreparedStatement> doPrepare(com.datastax.oss.driver.api.core.CqlSession session)

Invokes the statement preparation.

Parameters:

session -

Returns:

bindValues

public com.datastax.oss.driver.api.core.cql.BoundStatement bindValues(com.datastax.oss.driver.api.core.cql.PreparedStatement ps)
                                                               throws com.datastax.oss.driver.api.core.DriverException

Description copied from interface: PreparedStatementBinder

Bind parameter values on the given PreparedStatement.

Specified by:

bindValues in interface PreparedStatementBinder

Parameters:

ps - the PreparedStatement to invoke setter methods on.

Throws:

com.datastax.oss.driver.api.core.DriverException - if a DriverException is encountered (i.e. there is no need to catch DriverException)

getCql

public String getCql()

Description copied from interface: CqlProvider

Return the CQL string for this object, i.e. typically the CQL used for creating statements.

Specified by:

getCql in interface CqlProvider

Returns:

the CQL string.