/**
 * Copyright (C) 2010-2017 Gordon Fraser, Andrea Arcuri and EvoSuite
 * contributors
 *
 * This file is part of EvoSuite.
 *
 * EvoSuite is free software: you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published
 * by the Free Software Foundation, either version 3.0 of the License, or
 * (at your option) any later version.
 *
 * EvoSuite is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with EvoSuite. If not, see <http://www.gnu.org/licenses/>.
 */
package org.evosuite.setup;

/**
 * This class represents GETSTATIC edges in the static usage graph.
 *  
 * @author galeotti
 *
 */
final class StaticFieldReadEntry extends GetStaticGraphEntry {

	public StaticFieldReadEntry(String sourceClass, String sourceMethod,
			String targetClass, String targetField) {
		super(sourceClass, sourceMethod, targetClass);
		this.targetField = targetField;
	}

	private final String targetField;

	public String getTargetField() {
		return targetField;
	}

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

	@Override
	public boolean equals(Object obj) {
		if (this == obj)
			return true;
		if (!super.equals(obj))
			return false;
		if (getClass() != obj.getClass())
			return false;
		if (!super.equals(obj))
			return false;
		StaticFieldReadEntry other = (StaticFieldReadEntry) obj;
		if (targetField == null) {
			if (other.targetField != null)
				return false;
		} else if (!targetField.equals(other.targetField))
			return false;
		return true;
	}

	@Override
	public String toString() {
		return getSourceClass() + "." + getSourceMethod() + " -> "
				+ getTargetClass() + "." + targetField;
	}
}