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JBoss API: Class JDBCFinderCommand

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

java.lang.Object
  |
  +--org.jboss.ejb.plugins.jaws.jdbc.JDBCCommand
        |
        +--org.jboss.ejb.plugins.jaws.jdbc.JDBCQueryCommand
              |
              +--org.jboss.ejb.plugins.jaws.jdbc.JDBCFinderCommand

All Implemented Interfaces:: JPMFindEntitiesCommand

Direct Known Subclasses:: JDBCDefinedFinderCommand, JDBCFindAllCommand, JDBCFindByCommand

public abstract class JDBCFinderCommand
extends JDBCQueryCommand
implements JPMFindEntitiesCommand

Abstract superclass of finder commands that return collections. Provides the handleResult() implementation that these all need.

Version:: $Revision: 1.11.2.1 $
Author:: Rickard Öberg, Marc Fleury, Joe Shevland, Justin Forder
See Also:

Field Summary

protected FinderMetaData finderMetaData


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

debug, factory, jawsEntity, log, name

Constructor Summary

JDBCFinderCommand(JDBCCommandFactory factory, FinderMetaData f)


Method Summary

FinderResults execute(java.lang.reflect.Method finderMethod, java.lang.Object[] args, EntityEnterpriseContext ctx)


FinderMetaData getFinderMetaData()


abstract java.lang.String getFromClause()
          This method must be ovverridden to return the full table list for the query, including any join statements.

abstract java.lang.String getOrderByClause()
          This method must be ovverridded to return the full order by clause for the query, including the 'ORDER BY' keyword.

abstract java.lang.String getWhereClause()
          This method must be overridden to return the where clause used in this query.

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

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, getPkColumnList, getPkColumnWhereList, getPkFieldValue, getResultObject, getResultObject, getSQL, getState, isBinaryType, jdbcExecute, setCMPFieldValue, setParameter, setParameters, setPrimaryKeyParameters, setSQL

Methods inherited from class java.lang.Object

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

Field Detail

finderMetaData

protected FinderMetaData finderMetaData

Constructor Detail

JDBCFinderCommand

public JDBCFinderCommand(JDBCCommandFactory factory,
                         FinderMetaData f)

Method Detail

getFinderMetaData

public FinderMetaData getFinderMetaData()

getWhereClause

public abstract java.lang.String getWhereClause()

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.

getFromClause

public abstract java.lang.String getFromClause()

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.

getOrderByClause

public abstract java.lang.String getOrderByClause()

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

execute

public FinderResults execute(java.lang.reflect.Method finderMethod,
                             java.lang.Object[] args,
                             EntityEnterpriseContext ctx)
                      throws java.rmi.RemoteException,
                             javax.ejb.FinderException

Specified by:: execute in interface JPMFindEntitiesCommand

handleResult

protected java.lang.Object handleResult(java.sql.ResultSet rs,
                                        java.lang.Object argOrArgs)
                                 throws java.lang.Exception

Description copied from class: JDBCQueryCommand

Handles the result of successful execution of the query.

Overrides:: handleResult in class JDBCQueryCommand

Following copied from class: org.jboss.ejb.plugins.jaws.jdbc.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:: java.lang.Exception - if execution or result handling fails.