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DynamicReports is an open source Java reporting library based on JasperReports. It allows to create dynamic report designs and it doesn't need a visual report designer. You can very quickly create reports and produce documents that can be displayed, printed or exported into many popular formats such as PDF, Excel, Word and others.

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/*
 * DynamicReports - Free Java reporting library for creating reports dynamically
 *
 * Copyright (C) 2010 - 2018 Ricardo Mariaca and the Dynamic Reports Contributors
 * http://www.dynamicreports.org
 *
 * This file is part of DynamicReports.
 *
 * DynamicReports 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 3 of the License, or
 * (at your option) any later version.
 *
 * DynamicReports 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 DynamicReports. If not, see .
 */
package net.sf.dynamicreports.jasper.transformation;

import net.sf.dynamicreports.design.definition.DRIDesignField;
import net.sf.dynamicreports.design.definition.DRIDesignGroup;
import net.sf.dynamicreports.design.definition.DRIDesignSort;
import net.sf.dynamicreports.design.definition.DRIDesignVariable;
import net.sf.dynamicreports.design.definition.expression.DRIDesignComplexExpression;
import net.sf.dynamicreports.design.definition.expression.DRIDesignJasperExpression;
import net.sf.dynamicreports.design.definition.expression.DRIDesignSimpleExpression;
import net.sf.dynamicreports.design.definition.expression.DRIDesignSystemExpression;
import net.sf.dynamicreports.jasper.base.JasperCustomValues;
import net.sf.jasperreports.engine.JRException;
import net.sf.jasperreports.engine.JRGroup;
import net.sf.jasperreports.engine.design.JRDesignField;
import net.sf.jasperreports.engine.design.JRDesignSortField;
import net.sf.jasperreports.engine.design.JRDesignVariable;

import java.util.Collection;

/**
 * MainDatasetExpressionTransform class.
 *
 * @author Ricardo Mariaca ([email protected])
 * @version $Id: $Id
 */
public class MainDatasetExpressionTransform extends AbstractExpressionTransform {
    private JasperTransformAccessor accessor;

    /**
     * Constructor for MainDatasetExpressionTransform.
     *
     * @param accessor a {@link net.sf.dynamicreports.jasper.transformation.JasperTransformAccessor} object.
     */
    public MainDatasetExpressionTransform(JasperTransformAccessor accessor) {
        this.accessor = accessor;
    }

    /** {@inheritDoc} */
    @Override
    protected JasperCustomValues getCustomValues() {
        return accessor.getCustomValues();
    }

    /** {@inheritDoc} */
    @Override
    protected JRGroup getGroup(DRIDesignGroup group) {
        return accessor.getGroupTransform().getGroup(group);
    }

    /** {@inheritDoc} */
    @Override
    protected Collection getFields() {
        return accessor.getReport().getFields();
    }

    /** {@inheritDoc} */
    @Override
    protected Collection getVariables() {
        return accessor.getReport().getVariables();
    }

    /** {@inheritDoc} */
    @Override
    protected Collection getSystemExpressions() {
        return accessor.getReport().getSystemExpressions();
    }

    /** {@inheritDoc} */
    @Override
    protected Collection getJasperExpressions() {
        return accessor.getReport().getJasperExpressions();
    }

    /** {@inheritDoc} */
    @Override
    protected Collection getSimpleExpressions() {
        return accessor.getReport().getSimpleExpressions();
    }

    /** {@inheritDoc} */
    @Override
    protected Collection getComplexExpressions() {
        return accessor.getReport().getComplexExpressions();
    }

    /** {@inheritDoc} */
    @Override
    protected Collection getSorts() {
        return accessor.getReport().getSorts();
    }

    /** {@inheritDoc} */
    @Override
    protected void addField(JRDesignField field) throws JRException {
        accessor.getDesign().addField(field);
    }

    /** {@inheritDoc} */
    @Override
    protected void addVariable(JRDesignVariable variable) throws JRException {
        accessor.getDesign().addVariable(variable);
    }

    /** {@inheritDoc} */
    @Override
    protected void addSort(JRDesignSortField sort) throws JRException {
        accessor.getDesign().addSortField(sort);
    }
}