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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org 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 version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
package com.sun.star.report.pentaho.layoutprocessor;
import com.sun.star.report.pentaho.model.FormattedTextElement;
import java.util.ArrayList;
import java.util.List;
/**
* A variables collection is used to collect all FormattedTextElement objects
* of a repeated header or footer. Later, for each of these elements a variable
* setter is inserted into a hidden (in fact just very small) paragraph. These
* variables can later be read using the 'variable-get' construct.
*
* From the idea, this is equal to the 'strings' declaration of CSS3, although
* this code is explicit instead of declarative.
*
* @author Thomas Morgner
* @since 22.03.2007
*/
public class VariablesCollection
{
private VariablesCollection parent;
private String namePrefix;
private List variables;
public VariablesCollection(final String namePrefix)
{
this(namePrefix, null);
}
public VariablesCollection(final String namePrefix, final VariablesCollection parent)
{
if (namePrefix == null)
{
throw new NullPointerException("NamePrefix cannot be null");
}
this.namePrefix = namePrefix;
this.parent = parent;
this.variables = new ArrayList();
}
public VariablesCollection getParent()
{
return parent;
}
public String getNamePrefix()
{
return namePrefix;
}
public String addVariable(final FormattedTextElement element)
{
variables.add(element);
final int size = variables.size();
return namePrefix + size;
}
public FormattedTextElement[] getVariables()
{
return (FormattedTextElement[]) variables.toArray(new FormattedTextElement[variables.size()]);
}
public int getVariablesCount()
{
return variables.size();
}
}
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