org.grouplens.lenskit.data.sql

Class CachedPreparedStatement

java.lang.Object

org.grouplens.lenskit.data.sql.CachedPreparedStatement

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable, java.util.concurrent.Callable<java.sql.PreparedStatement>

public class CachedPreparedStatement
extends java.lang.Object
implements java.util.concurrent.Callable<java.sql.PreparedStatement>, java.io.Closeable

A simple object that wraps a lazy initialized PreparedStatement.

Constructor Summary

Constructors

Constructor and Description
CachedPreparedStatement(java.sql.Connection dbc, java.lang.String sql) Create a new cached prepared statement.

Method Summary

Modifier and Type	Method and Description
java.sql.PreparedStatement	call() Get the prepared statement, creating one if necessary.
void	close() Close the prepared statement.

Methods inherited from class java.lang.Object

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

Constructor Detail

CachedPreparedStatement

public CachedPreparedStatement(java.sql.Connection dbc,
                               java.lang.String sql)

Create a new cached prepared statement.

Parameters:

dbc - The database connection.

sql - The SQL string.

Method Detail

call

public java.sql.PreparedStatement call()
                                throws java.sql.SQLException

Get the prepared statement, creating one if necessary.

Specified by:

call in interface java.util.concurrent.Callable<java.sql.PreparedStatement>

Returns:

The prepared statement.

Throws:

java.sql.SQLException - if there is an error preparing the statement.

close

public void close()
           throws java.io.IOException

Close the prepared statement.

Specified by:

close in interface java.io.Closeable

Specified by:

close in interface java.lang.AutoCloseable

Throws:

java.io.IOException - if there is an error closing the statement.