/*******************************************************************************
 * 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.olingo.odata2.api.uri.expression;

/**
 * Represents a member expression in the expression tree
 * <br>
 * <br>
 * <p>A member expression node is inserted in the expression tree for any member operator ("/")
 * which is used to reference a property of an complex type or entity type.
 * <br>
 * <br>
 * <p><b>For example:</b> The expression "address/city eq 'Heidelberg' will result in an expression tree
 * containing a member expression node for accessing property "city" which is part of the
 * complex property "address". Method {@link #getPath()} will return a reference to the "address" property,
 * method {@link #getProperty()} will return a refence to the "city" property.
 * 
 */
public interface MemberExpression extends CommonExpression {
  /**
   * @return
   * Returns the CommonExpression forming the path (the left side of '/') of the method operator.
   * For OData 2.0 the value returned by {@link #getPath()} is a {@link PropertyExpression}
   */
  public CommonExpression getPath();

  /**
   * @return
   * Return the CommonExpression forming the property (the right side of '/') of the method operator.
   * For OData 2.0 the value returned by {@link #getProperty()} is a {@link PropertyExpression}
   */
  public CommonExpression getProperty();
}