org.objectweb.medor.filter.rdb.lib

Class BasicRdbFieldOperand

Implemented Interfaces:
Expression, Cloneable, Field, NullStatus, QueryTreeField, RdbField, RdbFieldOperand

public class BasicRdbFieldOperand
extends BasicRdbField
implements RdbFieldOperand

MEDOR: Middleware Enabling Distributed Object Requests Copyright (C) 2001-2003 France Telecom R&D Contact: alexandre.lefebvre@rd.francetelecom.com This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA Initial developers: M. Alia, A. Lefebvre

Field Summary

Fields inherited from class org.objectweb.medor.query.rdb.lib.BasicRdbField

col, ql

Fields inherited from class org.objectweb.medor.lib.BasicField

logger, name, type, valueState

Fields inherited from interface org.objectweb.medor.api.Field

PNAMENAME

Fields inherited from interface org.objectweb.medor.api.NullStatus

NONULLS, NULLABLE, NULLABLEUNKNOWN

Method Summary

Operand
compileExpression()
nothing to do.
Operand
evaluate(ParameterOperand[] values, Object o)
Not evaluable.
Operand
getResult()
No result (this is not evaluable).
boolean
isCompiled()
Can be considered as compiled, since nothing to do.

Methods inherited from class org.objectweb.medor.query.rdb.lib.BasicRdbField

clone, getColumnName, getQueryTree

Methods inherited from class org.objectweb.medor.lib.BasicField

clone, getName, getNullStatus, getType, toString

Method Details

compileExpression

public Operand compileExpression()
            throws TypingException,
                   MalformedExpressionException
nothing to do.


evaluate

public Operand evaluate(ParameterOperand[] values,
                        Object o)
            throws ExpressionException
Not evaluable.


getResult

public Operand getResult()
            throws IllegalStateException
No result (this is not evaluable).


isCompiled

public boolean isCompiled()
Can be considered as compiled, since nothing to do.