net.sf.okapi.virtualdb.jdbc.h2.H2TextUnit Maven / Gradle / Ivy

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/*===========================================================================
  Copyright (C) 2010-2011 by the Okapi Framework contributors
-----------------------------------------------------------------------------
  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 net.sf.okapi.virtualdb.jdbc.h2;

import net.sf.okapi.common.resource.ITextUnit;
import net.sf.okapi.common.resource.TextUnit;
import net.sf.okapi.virtualdb.IVDocument;
import net.sf.okapi.virtualdb.IVItem;
import net.sf.okapi.virtualdb.IVTextUnit;

public class H2TextUnit implements IVTextUnit {

	private long itemKey;
	private H2Document doc;
	private long parent;
	private long previous;
	private long next;
	private ITextUnit tu;
	
	public H2TextUnit (long itemKey,
		H2Document doc,
		String id,
		String name,
		String type)
	{
		super();
		tu = new TextUnit(id);
		this.itemKey = itemKey;
		this.doc = doc;
		tu.setName(name);
		tu.setType(type);
	}
	
	/**
	 * Fills the navigation pointers for this virtual text unit.
	 * @param parent the parent.
	 * @param previous the previous sibling.
	 * @param next the next sibling.
	 */
	void fillPointers(long parent,
		long previous,
		long next)
	{
		this.parent = parent;
		this.previous = previous;
		this.next = next;
	}

	/**
	 * Sets the text unit for this virtual text unit.
	 * @param tu the text unit to attach to this object.
	 */
	void setTextUnit (ITextUnit tu) {
		this.tu = tu;
	}

	@Override
	public ITextUnit getTextUnit () {
		return tu;
	}
	
	@Override
	public IVDocument getDocument () {
		return doc;
	}

	@Override
	public IVItem getParent () {
		return doc.db.getItemFromItemKey(doc, parent);
	}

	@Override
	public IVItem getNextSibling () {
		return doc.db.getItemFromItemKey(doc, next);
	}

	@Override
	public IVItem getPreviousSibling () {
		return doc.db.getItemFromItemKey(doc, previous);
	}

	@Override
	public IVItem getFirstChild () {
		// A virtual text unit cannot have children
		return null;
	}

	@Override
	public void save () {
		doc.db.saveTextUnit(this);
	}

	@Override
	public ItemType getItemType () {
		return ItemType.TEXT_UNIT;
	}

	@Override
	public String getId () {
		return tu.getId();
	}

	@Override
	public String getName () {
		return tu.getName();
	}

	@Override
	public String getType () {
		return tu.getType();
	}

	@Override
	public long getKey () {
		return itemKey;
	}

}