Package com.sun.star.report.function.metadata

Source Code of com.sun.star.report.function.metadata.AuthorFunction

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* Copyright 2008 by Sun Microsystems, Inc.
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* OpenOffice.org - a multi-platform office productivity suite
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* $RCSfile: AuthorFunction.java,v $
* $Revision: 1.1.1.1 $
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package com.sun.star.report.function.metadata;

import com.sun.star.report.ReportEngineParameterNames;
import org.jfree.formula.EvaluationException;
import org.jfree.formula.FormulaContext;
import org.jfree.formula.LibFormulaErrorValue;
import org.jfree.formula.function.Function;
import org.jfree.formula.function.ParameterCallback;
import org.jfree.formula.lvalues.TypeValuePair;
import org.jfree.formula.typing.coretypes.TextType;

/**
*
* @author Ocke Janssen
*/
public class AuthorFunction implements Function
{

    public AuthorFunction()
    {
    }

    public String getCanonicalName()
    {
        return "AUTHOR";
    }

    public TypeValuePair evaluate(final FormulaContext context,final ParameterCallback parameters)
            throws EvaluationException
    {
        if (parameters.getParameterCount() != 0)
        {
            throw new EvaluationException(LibFormulaErrorValue.ERROR_ARGUMENTS_VALUE);
        }

        return new TypeValuePair(TextType.TYPE, context.getConfiguration().getConfigProperty(ReportEngineParameterNames.AUTHOR));
    }
}
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