/*
* This program is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
* Foundation.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
* or from the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* This program 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.
*
* Copyright (c) 2001 - 2013 Object Refinery Ltd, Pentaho Corporation and Contributors.. All rights reserved.
*/
package org.pentaho.reporting.engine.classic.core.function.strings;
import org.pentaho.reporting.engine.classic.core.ResourceBundleFactory;
import org.pentaho.reporting.engine.classic.core.function.AbstractExpression;
/**
* A expression that transforms all letters of a given string into lower-case letters.
*
* @author Thomas Morgner
* @deprecated This can be solved with a formula
*/
public class ToLowerCaseStringExpression extends AbstractExpression {
/**
* The field name from where to read the string that should be converted to lower case.
*/
private String field;
/**
* Default Constructor.
*/
public ToLowerCaseStringExpression() {
}
/**
* Returns the name of the datarow-column from where to read the string value.
*
* @return the field.
*/
public String getField() {
return field;
}
/**
* Defines the name of the datarow-column from where to read the string value.
*
* @param field
* the field.
*/
public void setField( final String field ) {
this.field = field;
}
/**
* Transforms the string that has been read from the defined field.
*
* @return the value of the function.
*/
public Object getValue() {
final Object raw = getDataRow().get( getField() );
if ( raw == null ) {
return null;
}
final String text = String.valueOf( raw );
final ResourceBundleFactory rf = getResourceBundleFactory();
if ( rf == null ) {
return text.toLowerCase();
} else {
return text.toLowerCase( rf.getLocale() );
}
}
}