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The Kogito public API which is backwards compatible between releases.

There is a newer version: 10.0.0

/*
 * Copyright 2016 Red Hat, Inc. and/or its affiliates.
 *
 * 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.kie.api.runtime;

/**
 * The context of an execution
 */
public interface Context {

    /**
     * The unique name of this context
     */
    String getName();

    /**
     * Return the value associated with the given identifier in this context
     */
    Object get(String identifier);

    /**
     * Set a value on this context with this given identifier
     */
    void set(String identifier,
             Object value);

    /**
     * Remove the value associated with the given identifier in this context
     */
    void remove(String identifier);

    /**
     * Return true if the given identifier has an associated value in this context
     */
    boolean has(String identifier);
}