1 /*
2 * Copyright (c) 2011. The Apache Software Foundation
3 *
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing, software
15 * distributed under the License is distributed on an "AS IS" BASIS,
16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17 * See the License for the specific language governing permissions and
18 * limitations under the License.
19 */
20
21 package org.apache.expreval.expr;
22
23 import org.apache.expreval.expr.node.GenericValue;
24 import org.apache.hadoop.hbase.hbql.client.HBqlException;
25
26 import java.util.List;
27
28 public abstract class DelegateStmt<T extends GenericExpression> extends GenericExpression {
29
30 private T typedExpr = null;
31
32 protected DelegateStmt(final ExpressionType type, GenericValue... args) {
33 super(type, args);
34 }
35
36 protected DelegateStmt(final ExpressionType type, final List<GenericValue> args) {
37 super(type, args);
38 }
39
40 protected DelegateStmt(final ExpressionType type, final GenericValue arg, final List<GenericValue> argList) {
41 super(type, arg, argList);
42 }
43
44 protected T getTypedExpr() {
45 return this.typedExpr;
46 }
47
48 protected void setTypedExpr(final T typedExpr) throws HBqlException {
49 this.typedExpr = typedExpr;
50
51 this.getTypedExpr().setExpressionContext(this.getExpressionContext());
52 }
53 }