org.apache.tomcat.jdbc.pool

Class StatementFacade

java.lang.Object

org.apache.tomcat.jdbc.pool.JdbcInterceptor

org.apache.tomcat.jdbc.pool.interceptor.AbstractCreateStatementInterceptor

org.apache.tomcat.jdbc.pool.StatementFacade

All Implemented Interfaces:

InvocationHandler

public class StatementFacade
extends AbstractCreateStatementInterceptor

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected class	StatementFacade.StatementProxy Class to measure query execute time.

Field Summary

Fields

Modifier and Type	Field and Description
protected static Constructor<?>[]	constructors the constructors that are used to create statement proxies

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, EQUALS_VAL, GETCONNECTION_VAL, HASHCODE_VAL, ISCLOSED_VAL, ISVALID_VAL, ISWRAPPERFOR_VAL, properties, TOSTRING_VAL, UNWRAP_VAL

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	StatementFacade(JdbcInterceptor interceptor)

Method Summary

Modifier and Type	Method and Description
void	closeInvoked() Method invoked when the operation Connection.close() is invoked.
Object	createStatement(Object proxy, Method method, Object[] args, Object statement, long time) Creates a statement interceptor to monitor query response times
protected Constructor<?>	getConstructor(int idx, Class<?> clazz) Creates a constructor for a proxy class, if one doesn't already exist

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

invoke, isExecute, isStatement, process, reset

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

constructors

protected static final Constructor<?>[] constructors

the constructors that are used to create statement proxies

Constructor Detail

StatementFacade

protected StatementFacade(JdbcInterceptor interceptor)

Method Detail

closeInvoked

public void closeInvoked()

Description copied from class: AbstractCreateStatementInterceptor

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

Specified by:

closeInvoked in class AbstractCreateStatementInterceptor

createStatement

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

Creates a statement interceptor to monitor query response times

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

getConstructor

protected Constructor<?> getConstructor(int idx,
                                        Class<?> clazz)
                                 throws NoSuchMethodException

Creates a constructor for a proxy class, if one doesn't already exist

Parameters:

idx - - the index of the constructor

clazz - - the interface that the proxy will implement

Returns:

- returns a constructor used to create new instances

Throws:

NoSuchMethodException - Constructor not found