Tag.java

package org.wahlzeit.model;

import com.google.appengine.api.datastore.Key;
import com.googlecode.objectify.annotation.Entity;
import com.googlecode.objectify.annotation.Id;
import com.googlecode.objectify.annotation.Index;
import com.googlecode.objectify.annotation.Parent;
import org.wahlzeit.services.DataObject;
import org.wahlzeit.services.ObjectManager;

/**
 * A class to hold one tag.
 * 
 * @review
 */
@Entity
public class Tag extends DataObject {

	public static final String TEXT = "text";
	public static final String PHOTO_ID = "photoId";

	@Id
	private Long id;
	@Index
	private String text;
	@Index
	private String photoId;
	@Parent
	Key parent = ObjectManager.applicationRootKey;

	public Tag() {
		// do nothing, necessary for Google Datastore
	}

	public Tag(String text, String photoId) {
		this.text = text;
		this.photoId = photoId;
		incWriteCount();
	}

	public String getText() {
		return text;
	}

	public String getPhotoId() {
		return photoId;
	}

	public String asString() {
		return "PhotoId: " + photoId + ", Tag: " + text;
	}
}