/*
    * Copyright (C) 2007-2012 Argeo GmbH
    *
    * 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 org.argeo.slc.core.execution;
  
  import org.argeo.slc.SlcException;
  
  /**
   * A spec attribute wrapping a primitive value.
   * 
   * @see PrimitiveAccessor
   */
  public class PrimitiveSpecAttribute extends AbstractSpecAttribute implements
  		PrimitiveAccessor {
  	private static final long serialVersionUID = -566676381839825483L;
  	private String type = "string";
  	private Object value = null;
  
  	public PrimitiveSpecAttribute() {
  	}
  
  	public PrimitiveSpecAttribute(String type, Object value) {
  		this.type = type;
  		this.value = value;
  	}
  
  	public Object getValue() {
  		return value;
  	}
  
  	public void setValue(Object value) {
  		this.value = value;
  	}
  
  	public String getType() {
  		return type;
  	}
  
  	public void setType(String type) {
  		// check whether type is recognized.
  		if (PrimitiveUtils.typeAsClass(type) == null)
  			throw new SlcException("Unrecognized type " + type);
  		this.type = type;
  
  	}
  
  	@Override
  	public String toString() {
  		return "Primitive spec attribute [" + type + "]"
  				+ (value != null ? "=" + value : "");
  	}
  
  }