/**
 * 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.
 *
 * See the NOTICE file distributed with this work for additional
 * information regarding copyright ownership.
 */
package org.sintef.thingml.resource.thingml;

/**
 * A basic interface to convert parsed tokens to the attribute type in the meta
 * model. All generated TokenResolvers per default delegate requests to an
 * instance of ThingmlDefaultTokenResolver which performs a standard conversion
 * based on the EMF type conversion. This includes conversion of registered
 * EDataTypes.
 * 
 * @see org.sintef.thingml.resource.thingml.analysis.ThingmlDefaultTokenResolver
 */
public interface IThingmlTokenResolver extends org.sintef.thingml.resource.thingml.IThingmlConfigurable {
	
	/**
	 * Converts a token into an Object (the value of the attribute).
	 * 
	 * @param lexem the text of the parsed token
	 * @param feature the corresponding feature in the meta model
	 * @param result the result of resolving the lexem, can be used to add processing
	 * errors
	 */
	public void resolve(String lexem, org.eclipse.emf.ecore.EStructuralFeature feature, org.sintef.thingml.resource.thingml.IThingmlTokenResolveResult result);
	
	/**
	 * Converts an Object (the value of an attribute) to a string which can be
	 * printed. This is the inverse of resolving a token with a call to resolve().
	 * 
	 * @param value the Object to be printed as String
	 * @param feature the corresponding feature (EAttribute)
	 * @param container the container of the object
	 * 
	 * @return the String representation or null if a problem occurred
	 */
	public String deResolve(Object value, org.eclipse.emf.ecore.EStructuralFeature feature, org.eclipse.emf.ecore.EObject container);
	
}