Modification.java

package se.chalmers.dat255.grupp12;

import com.google.gson.Gson;

public class Modification {

	private String action;
	private Task task;
	private TaskList list;
	private long listID;
	private long time;
	private Change change;
	private long id;

	public Modification() {} // For serialization.

	/**
	 * Change contains three Strings, type, from and to where:
	 * type = The type of change (add/remove/update a task/list)
	 * from = The value that the object changes from
	 * to = The value that the object changes to
	 */
	public static class Change {
		private String type;
		private String from;
		private String to;

		public Change(String type, String from, String to) {
			this.type = type;
			this.from = from;
			this.to = to;
		}

		public String getType() {
			return type;
		}

		private Change(){} // For serialization.

		public String getFrom() {
			return from;
		}

		public String getTo() {
			return to;
		}
	}

	public Change getChange() {
		return change;
	}

	public Task getTask() {
		return task;
	}

	public int getListId() {
		return (int)listID;
	}

	public String getAction() {
		return action;
	}

	public int getTaskId(){
		return (int)id;
	}

	public TaskList getList() {
		return list;
	}

	/**
	 * Returns the modification as JSON, as a workaround for the retrofit json parser
	 * being quite funky in its serializing.
	 * @return the modification in JSON format.
	 */
	@Override
	public String toString() {
		Gson gson = new Gson();
		return gson.toJson(this, Modification.class);
	}
}