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Model Citizen is an annotation based model factory for Java. A Model is mapped by a Blueprint using annotated fields. Blueprints contain default values and references to other blueprinted models. The ModelFactory can create Models based on registered Blueprints. A Model already created can be passed into the ModelFactory as a Reference Model, which will be used as the basis for the new Model.

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package com.tobedevoured.modelcitizen.field;

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you 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.
 */


/**
 * A {@link Mapped} annotated Field in the {@link Blueprint} that is mapped 
 * to a registered {@Blueprint}
 * 
 * @author Michael Guymon
 */
public class MappedField extends ModelField {

	private boolean nullable = false;

	public boolean isNullable() {
		return nullable;
	}

	public void setNullable(boolean nullable) {
		this.nullable = nullable;
	}

	@Override
	public int hashCode() {
		final int prime = 31;
		int result = super.hashCode();
		result = prime * result + (nullable ? 1231 : 1237);
		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;
		}
		MappedField other = (MappedField) obj;
		if (nullable != other.nullable) {
			return false;
		}
		return true;
	}
	
	
}