org.mule.providers.jdbc
Class JdbcMessageDispatcher

java.lang.Object
  extended by org.mule.providers.AbstractMessageDispatcher
      extended by org.mule.providers.jdbc.JdbcMessageDispatcher
All Implemented Interfaces:
ExceptionListener, Disposable, UMOConnectable, UMOMessageDispatcher, UMOMessageDispatching

public class JdbcMessageDispatcher
extends AbstractMessageDispatcher

The Jdbc Message dispatcher is responsible for executing SQL queries against a database.


Field Summary
 
Fields inherited from class org.mule.providers.AbstractMessageDispatcher
connected, connecting, connectionStrategy, disposed, endpoint, logger, workManager
 
Fields inherited from interface org.mule.umo.provider.UMOMessageDispatching
RECEIVE_NO_WAIT, RECEIVE_WAIT_INDEFINITELY
 
Constructor Summary
JdbcMessageDispatcher(UMOImmutableEndpoint endpoint)
           
 
Method Summary
protected  void doConnect()
           
protected  void doDisconnect()
           
protected  void doDispatch(UMOEvent event)
           
protected  void doDispose()
           
protected  UMOMessage doReceive(long timeout)
          Make a specific request to the underlying transport
protected  UMOMessage doReceive(long timeout, UMOEvent event)
          Make a specific request to the underlying transport Special case: The event is need when doReceive was called from doSend
protected  UMOMessage doSend(UMOEvent event)
           
protected  UMOMessage executeWriteStatement(UMOEvent event, String writeStmt)
           
protected  String getStatement(UMOImmutableEndpoint endpoint)
           
protected  int getType(String key)
           
protected  boolean isProcWithOutParams(Object[][] types)
           
protected  boolean isWriteStatement(String writeStmt)
           
protected  void registerType(String type, int jdbcType)
           
 
Methods inherited from class org.mule.providers.AbstractMessageDispatcher
activate, connect, disconnect, dispatch, dispose, exceptionThrown, getConnectEventId, getConnectionDescription, getConnector, getEndpoint, isConnected, isDoThreading, isTransactionRollback, passivate, receive, reconnect, send, toString, useRemoteSync, validate
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

JdbcMessageDispatcher

public JdbcMessageDispatcher(UMOImmutableEndpoint endpoint)
Method Detail

getType

protected int getType(String key)

registerType

protected void registerType(String type,
                            int jdbcType)

doDispose

protected void doDispose()
Specified by:
doDispose in class AbstractMessageDispatcher

isProcWithOutParams

protected boolean isProcWithOutParams(Object[][] types)

executeWriteStatement

protected UMOMessage executeWriteStatement(UMOEvent event,
                                           String writeStmt)
                                    throws Exception
Throws:
Exception

getStatement

protected String getStatement(UMOImmutableEndpoint endpoint)

isWriteStatement

protected boolean isWriteStatement(String writeStmt)

doDispatch

protected void doDispatch(UMOEvent event)
                   throws Exception
Specified by:
doDispatch in class AbstractMessageDispatcher
Throws:
Exception

doSend

protected UMOMessage doSend(UMOEvent event)
                     throws Exception
Specified by:
doSend in class AbstractMessageDispatcher
Throws:
Exception

doReceive

protected UMOMessage doReceive(long timeout)
                        throws Exception
Make a specific request to the underlying transport

Specified by:
doReceive in class AbstractMessageDispatcher
Parameters:
timeout - the maximum time the operation should block before returning. The call should return immediately if there is data available. If no data becomes available before the timeout elapses, null will be returned
Returns:
the result of the request wrapped in a UMOMessage object. Null will be returned if no data was available
Throws:
Exception - if the call to the underlying protocol causes an exception

doReceive

protected UMOMessage doReceive(long timeout,
                               UMOEvent event)
                        throws Exception
Make a specific request to the underlying transport Special case: The event is need when doReceive was called from doSend

Parameters:
timeout - only for compatibility with doReceive(long timeout)
event - There is a need to get params from message
Returns:
the result of the request wrapped in a UMOMessage object. Null will be returned if no data was available
Throws:
Exception - if the call to the underlying protocol causes an exception

doConnect

protected void doConnect()
                  throws Exception
Specified by:
doConnect in class AbstractMessageDispatcher
Throws:
Exception

doDisconnect

protected void doDisconnect()
                     throws Exception
Specified by:
doDisconnect in class AbstractMessageDispatcher
Throws:
Exception


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