/*
 * Copyright 2011-2015 B2i Healthcare Pte Ltd, http://b2i.sg
 * 
 * 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 com.b2international.snowowl.snomed.reasoner.classification.entry;

import com.google.common.base.Objects;

/**
 * Abstract base class for reasoner change entries.
 */
public abstract class AbstractChangeEntry implements IChangeEntry {

	private static final long serialVersionUID = -4015153137195793820L;

	/**
	 * Enumerates the possible natures of an {@link AbstractChangeEntry}.
	 */
	public enum Nature {
		INFERRED, 
		REDUNDANT
	}

	private final ChangeConcept source;
	private final Nature nature;

	protected AbstractChangeEntry(final Nature nature, final ChangeConcept source) {
		this.source = source;
		this.nature = nature;
	}

	@Override 
	public ChangeConcept getSource() {
		return source;
	}

	@Override 
	public Nature getNature() {
		return nature;
	}

	@Override 
	public int hashCode() {
		final int prime = 31;
		int result = 1;
		result = prime * result + ((nature == null) ? 0 : nature.hashCode());
		result = prime * result + ((source == null) ? 0 : source.hashCode());
		return result;
	}

	@Override 
	public boolean equals(final Object obj) {
		if (this == obj) { return true; }
		if (obj == null) { return false; }
		if (getClass() != obj.getClass()) { return false; }

		final AbstractChangeEntry other = (AbstractChangeEntry) obj;

		if (nature != other.nature) { return false; }
		if (!Objects.equal(source, other.source)) { return false; }
		return true;
	}
}

@@ -1038,16 +1038,19 @@
 ature %7B%0A
+%09%09%0A
 %09%09INFERR
@@ -1051,16 +1051,28 @@
 INFERRED
+(%22Inferred%22)
 , %0A%09%09RED
@@ -1077,16 +1077,171 @@
 EDUNDANT
+(%22Redundant%22);%0A%09%09%0A%09%09private String name;%0A%09%09%0A%09%09private Nature(String name) %7B%0A%09%09%09this.name = name;%0A%09%09%7D;%0A%09%09%0A%09%09public String getName() %7B%0A%09%09%09return name;%0A%09%09%7D%0A%09%09
 %0A%09%7D%0A%0A%09pr

Add display name to classification change entry