org.smallmind.persistence.query.EnumWhereOperand Maven / Gradle / Ivy

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/*
 * Copyright (c) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 David Berkman
 * 
 * This file is part of the SmallMind Code Project.
 * 
 * The SmallMind Code Project is free software, you can redistribute
 * it and/or modify it under either, at your discretion...
 * 
 * 1) The terms of GNU Affero General Public License as published by the
 * Free Software Foundation, either version 3 of the License, or (at
 * your option) any later version.
 * 
 * ...or...
 * 
 * 2) The terms of the Apache License, Version 2.0.
 * 
 * The SmallMind Code Project 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
 * General Public License or Apache License for more details.
 * 
 * You should have received a copy of the GNU Affero General Public License
 * and the Apache License along with the SmallMind Code Project. If not, see
 *  or .
 * 
 * Additional permission under the GNU Affero GPL version 3 section 7
 * ------------------------------------------------------------------
 * If you modify this Program, or any covered work, by linking or
 * combining it with other code, such other code is not for that reason
 * alone subject to any of the requirements of the GNU Affero GPL
 * version 3.
 */
package org.smallmind.persistence.query;

import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;
import javax.xml.bind.annotation.XmlTransient;

@XmlRootElement(name = "enum")
public class EnumWhereOperand> extends WhereOperand {

  private String value;
  private String type;

  public EnumWhereOperand () {

  }

  public EnumWhereOperand (String type, E enumeration) {

    this.type = type;

    value = enumeration.name();
  }

  @Override
  @XmlTransient
  public E extract (WhereOperandTransformer transformer) {

    Class enumClass;

    if (transformer == null) {
      throw new WhereValidationException("Translation of enum type(%s) requires an implementation of a WhereOperandTransformer", type);
    }
    if ((enumClass = transformer.getEnumType(type)) == null) {
      throw new WhereValidationException("Missing a %s capable of transforming enum type(%s)", WhereOperandTransformer.class.getSimpleName(), type);
    }

    return (E)Enum.valueOf(enumClass, value);
  }

  @XmlElement(name = "type", required = true)
  public String getType () {

    return type;
  }

  public void setType (String type) {

    this.type = type;
  }

  @XmlElement(name = "value", required = true)
  public String getValue () {

    return value;
  }

  public void setValue (String value) {

    this.value = value;
  }
}