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JDBCBeanExistsCommand (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 JDBCBeanExistsCommand

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

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public class JDBCBeanExistsCommand

extends JDBCQueryCommand

JDBCBeanExistsCommand

Version:

$Revision: 1.11 $

Revisions:

20010812 vincent.harcq@hubmethods.com:

• Get Rid of debug flag, use log4j instead

Author:

Marc Fleury, Justin Forder

See Also:

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Field Summary

 

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

factory, jawsEntity, name

 

Constructor Summary

JDBCBeanExistsCommand(JDBCCommandFactory factory)

 

Method Summary
boolean	execute(Object id)
protected  Object	handleResult(ResultSet rs, Object argOrArgs)           Handles the result of successful execution of the query.
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

JDBCBeanExistsCommand

public JDBCBeanExistsCommand(JDBCCommandFactory factory)

Method Detail

execute

public boolean execute(Object id)

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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.

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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.

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