DynamicDataRow.java

/*
 * Copyright 2012 Red Hat, Inc. and/or its affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.kie.workbench.common.widgets.decoratedgrid.client.widget.data;

import org.kie.workbench.common.widgets.decoratedgrid.client.widget.CellValue;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

/**
 * A row of data in the Decision Table
 */
public class DynamicDataRow
        implements
        Iterable<CellValue<? extends Comparable<?>>> {

    //An incrementally unique number for each row, used to restore original ordering when user-applied sorting is removed
    private static long _COUNTER = 0;

    private static synchronized long getNextCreationIndex() {
        return _COUNTER++;
    }

    private long                                     creationIndex;
    private List<CellValue<? extends Comparable<?>>> rowData;

    public DynamicDataRow() {
        creationIndex = getNextCreationIndex();
        rowData = new ArrayList<CellValue<? extends Comparable<?>>>();
    }

    public CellValue<? extends Comparable<?>> get( int index ) {
        return rowData.get( index );
    }

    public Iterator<CellValue<? extends Comparable<?>>> iterator() {
        return rowData.iterator();
    }

    public CellValue<? extends Comparable<?>> set( int index,
                                                   CellValue<? extends Comparable<?>> cell ) {

        Coordinate c = get( index ).getCoordinate();
        Coordinate hc = get( index ).getHtmlCoordinate();
        Coordinate pc = get( index ).getPhysicalCoordinate();
        cell.setCoordinate( c );
        cell.setHtmlCoordinate( hc );
        cell.setPhysicalCoordinate( pc );
        cell.setRowSpan( get( index ).getRowSpan() );

        return rowData.set( index,
                            cell );
    }

    public int size() {
        return rowData.size();
    }

    public boolean add( CellValue<? extends Comparable<?>> cell ) {
        return rowData.add( cell );
    }

    public void add( int index,
                     CellValue<? extends Comparable<?>> cell ) {
        rowData.add( index,
                     cell );
    }

    void clear() {
        rowData.clear();
    }

    public CellValue<? extends Comparable<?>> remove( int index ) {
        return rowData.remove( index );
    }

    long getCreationIndex() {
        return creationIndex;
    }

}