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

Field Summary
protected  JDBCFinderCommand	finderDelegate           The finder we delegate to for setParameters and to get our SQL
protected  JDBCLoadEntityCommand	loadCommand           The load command we delegate to for our column list

 

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

finderMetaData

 

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

factory, jawsEntity, name

 

Constructor Summary

JDBCPreloadFinderCommand(JDBCCommandFactory factory, FinderMetaData f)

JDBCPreloadFinderCommand(JDBCCommandFactory factory, JDBCFinderCommand finder)

JDBCPreloadFinderCommand(JDBCCommandFactory factory, String name)

 

Method Summary
protected  void	buildSQL()           Helper method called by the constructors
protected  Object	createKey(ResultSet rs)
String	getFromClause()           This method must be ovverridden to return the full table list for the query, including any join statements.
String	getOrderByClause()           This method must be ovverridded to return the full order by clause for the query, including the 'ORDER BY' keyword.
String	getWhereClause()           This method must be overridden to return the where clause used in this query.
protected  Object	handleResult(ResultSet rs, Object argOrArgs)           Handles the result of successful execution of the query.
protected  void	preloadOneEntity(ResultSet rs, Object key)
protected  void	setParameters(PreparedStatement stmt, Object argOrArgs)           Default implementation does nothing.

 

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

execute, getFinderMetaData

 

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

 

Field Detail

finderDelegate

protected JDBCFinderCommand finderDelegate

The finder we delegate to for setParameters and to get our SQL

loadCommand

protected JDBCLoadEntityCommand loadCommand

The load command we delegate to for our column list

JDBCPreloadFinderCommand

public JDBCPreloadFinderCommand(JDBCCommandFactory factory,
                                String name)

JDBCPreloadFinderCommand

public JDBCPreloadFinderCommand(JDBCCommandFactory factory,
                                FinderMetaData f)

JDBCPreloadFinderCommand

public JDBCPreloadFinderCommand(JDBCCommandFactory factory,
                                JDBCFinderCommand finder)

getWhereClause

public String getWhereClause()

Description copied from class: JDBCFinderCommand

This method must be overridden to return the where clause used in this query. This must start with the keyword 'WHERE' and include all conditions needed to execute the query properly.

Specified by:

getWhereClause in class JDBCFinderCommand

getFromClause

public String getFromClause()

Description copied from class: JDBCFinderCommand

This method must be ovverridden to return the full table list for the query, including any join statements. This must start with the keyword 'FROM' and include all tables needed to execute the query properly.

Specified by:

getFromClause in class JDBCFinderCommand

getOrderByClause

public String getOrderByClause()

Description copied from class: JDBCFinderCommand

This method must be ovverridded to return the full order by clause for the query, including the 'ORDER BY' keyword.

Specified by:

getOrderByClause in class JDBCFinderCommand

buildSQL

protected void buildSQL()

Helper method called by the constructors

handleResult

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

Description copied from class: JDBCQueryCommand

Handles the result of successful execution of the query.

Overrides:

handleResult in class JDBCFinderCommand

Throws:

Exception

preloadOneEntity

protected void preloadOneEntity(ResultSet rs,
                                Object key)

createKey

protected Object createKey(ResultSet rs)
                    throws Exception

Throws:

Exception

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.