JDBCLoadEntityCommand (JBoss Server API) - JBoss 3.2.7 server API Documentation 英文版文档

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org.jboss.ejb.plugins.jaws.jdbc
Class JDBCLoadEntityCommand

java.lang.Object
  org.jboss.ejb.plugins.jaws.jdbc.JDBCCommand
      org.jboss.ejb.plugins.jaws.jdbc.JDBCQueryCommand
          org.jboss.ejb.plugins.jaws.jdbc.JDBCLoadEntityCommand

All Implemented Interfaces:: JPMLoadEntityCommand

public class JDBCLoadEntityCommand
extends JDBCQueryCommand
implements JPMLoadEntityCommand

JAWSPersistenceManager JDBCLoadEntityCommand

Version:

$Revision: 1.19.2.2 $

Revisions:

20010812 vincent.harcq@hubmethods.com:

Get Rid of debug flag, use log4j instead

Author:

Rickard 脰berg, Marc Fleury, Joe Shevland, Justin Forder, Dirk Zimmermann, Dan Christopherson

See Also:

Field Summary

Fields inherited from class org.jboss.ejb.plugins.jaws.jdbc.JDBCCommand

factory, jawsEntity, name

Constructor Summary

JDBCLoadEntityCommand(JDBCCommandFactory factory)


Method Summary

protected String createSelectClause()


void execute(EntityEnterpriseContext ctx)


protected Object handleResult(ResultSet rs, Object argOrArgs)
          Handles the result of successful execution of the query.

protected boolean isTimedOut(EntityEnterpriseContext ctx)


protected void loadFromPreload(Object[] data, EntityEnterpriseContext ctx)


protected void loadOneEntity(ResultSet rs, EntityEnterpriseContext ctx)


protected void setParameters(PreparedStatement stmt, Object argOrArgs)
          Default implementation does nothing.

Methods inherited from class org.jboss.ejb.plugins.jaws.jdbc.JDBCQueryCommand

executeStatementAndHandleResult

Methods inherited from class org.jboss.ejb.plugins.jaws.jdbc.JDBCCommand

getCMPFieldValue, getConnection, getJawsCMPFieldJDBCType, getJDBCType, getJDBCTypeName, getName, getPkColumnList, getPkColumnWhereList, getPkFieldValue, getResultObject, getResultObject, getSQL, getState, isBinaryType, jdbcExecute, setCMPFieldValue, setParameter, setPrimaryKeyParameters, setSQL

Methods inherited from class java.lang.Object

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

Constructor Detail

JDBCLoadEntityCommand

public JDBCLoadEntityCommand(JDBCCommandFactory factory)

Method Detail

createSelectClause

protected String createSelectClause()

execute

public void execute(EntityEnterpriseContext ctx)

Specified by:: execute in interface JPMLoadEntityCommand

setParameters

protected void setParameters(PreparedStatement stmt,
                             Object argOrArgs)
                      throws Exception

Description copied from class: JDBCCommand

Default implementation does nothing. Override if parameters need to be set.

Overrides:: setParameters in class JDBCCommand

Parameters:: stmt - the PreparedStatement which will be executed by this Command.; argOrArgs - argument or array of arguments passed in from subclass execute method.
Throws:: Exception - if parameter setting fails.

handleResult

protected Object handleResult(ResultSet rs,
                              Object argOrArgs)
                       throws Exception

Description copied from class: JDBCQueryCommand

Handles the result of successful execution of the query.

Specified by:: handleResult in class JDBCQueryCommand

Parameters:: rs - the result set from the query.; argOrArgs - argument or array of arguments passed in from subclass execute method.
Returns:: any result produced by the handling of the result of executing the prepared statement.
Throws:: Exception - if execution or result handling fails.

loadFromPreload

protected void loadFromPreload(Object[] data,
                               EntityEnterpriseContext ctx)
                        throws Exception

Throws:: Exception

loadOneEntity

protected void loadOneEntity(ResultSet rs,
                             EntityEnterpriseContext ctx)
                      throws Exception

Throws:: Exception

isTimedOut

protected boolean isTimedOut(EntityEnterpriseContext ctx)