org.apache.tomcat.jdbc.pool.interceptor
Class StatementFinalizer

java.lang.Object
  org.apache.tomcat.jdbc.pool.JdbcInterceptor
      org.apache.tomcat.jdbc.pool.interceptor.AbstractCreateStatementInterceptor
          org.apache.tomcat.jdbc.pool.interceptor.StatementFinalizer

All Implemented Interfaces:

InvocationHandler

public class StatementFinalizer
extends AbstractCreateStatementInterceptor

Keeps track of statements associated with a connection and invokes close upon Connection.close() Useful for applications that dont close the associated statements after being done with a connection.

Author:

fhanik

Field Summary

protected ArrayList<WeakReference<Statement>>

statements

Fields inherited from class org.apache.tomcat.jdbc.pool.interceptor.AbstractCreateStatementInterceptor

CREATE_STATEMENT, CREATE_STATEMENT_IDX, EXECUTE, EXECUTE_BATCH, EXECUTE_QUERY, EXECUTE_TYPES, EXECUTE_UPDATE, PREPARE_CALL, PREPARE_CALL_IDX, PREPARE_STATEMENT, PREPARE_STATEMENT_IDX, STATEMENT_TYPE_COUNT, STATEMENT_TYPES

Fields inherited from class org.apache.tomcat.jdbc.pool.JdbcInterceptor

CLOSE_VAL, GETCONNECTION_VAL, ISCLOSED_VAL, ISVALID_VAL, ISWRAPPERFOR_VAL, properties, TOSTRING_VAL, UNWRAP_VAL

Constructor Summary

StatementFinalizer()

Method Summary

void	closeInvoked() Method invoked when the operation Connection.close() is invoked.
Object	createStatement(Object proxy, Method method, Object[] args, Object statement, long time) This method will be invoked after a successful statement creation.
void	reset(ConnectionPool parent, PooledConnection con) no-op for this interceptor. no state is stored.

Methods inherited from class org.apache.tomcat.jdbc.pool.interceptor.AbstractCreateStatementInterceptor

invoke, isExecute, isStatement, process

Methods inherited from class org.apache.tomcat.jdbc.pool.JdbcInterceptor

compare, compare, disconnected, getNext, getProperties, isUseEquals, poolClosed, poolStarted, setNext, setProperties, setUseEquals

Methods inherited from class java.lang.Object

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

Field Detail

statements

protected ArrayList<WeakReference<Statement>> statements

Constructor Detail

StatementFinalizer

public StatementFinalizer()

Method Detail

createStatement

public Object createStatement(Object proxy,
                              Method method,
                              Object[] args,
                              Object statement,
                              long time)

Description copied from class: AbstractCreateStatementInterceptor

This method will be invoked after a successful statement creation. This method can choose to return a wrapper around the statement or return the statement itself. If this method returns a wrapper then it should return a wrapper object that implements one of the following interfaces. Statement, PreparedStatement or CallableStatement

Specified by:

createStatement in class AbstractCreateStatementInterceptor

Parameters:

proxy - the actual proxy object

method - the method that was called. It will be one of the methods defined in AbstractCreateStatementInterceptor.STATEMENT_TYPES

args - the arguments to the method

statement - the statement that the underlying connection created

Returns:

a Statement object

closeInvoked

public void closeInvoked()

Description copied from class: AbstractCreateStatementInterceptor

Method invoked when the operation Connection.close() is invoked.

Specified by:

closeInvoked in class AbstractCreateStatementInterceptor

reset

public void reset(ConnectionPool parent,
                  PooledConnection con)

Description copied from class: AbstractCreateStatementInterceptor

no-op for this interceptor. no state is stored.

Overrides:

reset in class AbstractCreateStatementInterceptor

Parameters:

parent - - the connection pool owning the connection

con - - the pooled connection