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/*
 * Copyright © 2017 Cask Data, Inc.
 *
 * 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 co.cask.wrangler.api.parser;

import co.cask.wrangler.api.annotations.PublicEvolving;
import com.google.gson.JsonElement;

import java.io.Serializable;

/**
 * The Token class represents the object that contains the value and type of
 * the token as parsed by the parser of the grammar defined for recipe.
 *
 * 

This class provides methods for retrieving the wrapped value of token parsed * as well the type of token the implementation of this interface represents.

* *

It also provides method for providing the {@code JsonElement} of implementation * of this interface.

*/ @PublicEvolving public interface Token extends Serializable { /** * Returns the {@code value} of the object wrapped by the * implementation of this interface. * * @return {@code value} wrapped by the implementation of this interface. */ Object value(); /** * Returns the {@code TokenType} of the object represented by the * implementation of this interface. * * @return {@code TokenType} of the implementation object. */ TokenType type(); /** * The class implementing this interface will return the {@code JsonElement} * instance including the values of the object. * * @return {@code JsonElement} object containing members of implementing class. */ JsonElement toJson(); }




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