modules/core/src/main/java/org/apache/ignite/internal/processors/query/property/QueryPropertyAccessor.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.apache.ignite.internal.processors.query.property;

import org.apache.ignite.IgniteCheckedException;

/**
 * Way of accessing a property - either via field or getter and setter methods.
 */
public interface QueryPropertyAccessor {
    /**
     * Get property value from given object.
     *
     * @param obj Object to retrieve property value from.
     * @return Property value.
     * @throws IgniteCheckedException if failed.
     */
    public Object getValue(Object obj) throws IgniteCheckedException;

    /**
     * Set property value on given object.
     *
     * @param obj Object to set property value on.
     * @param newVal Property value.
     * @throws IgniteCheckedException if failed.
     */
    public void setValue(Object obj, Object newVal)throws IgniteCheckedException;

    /**
     * @return Name of this property.
     */
    public String getPropertyName();

    /**
     * @return Type of the value of this property.
     */
    public Class<?> getType();
}