KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > com > caucho > amber > expr > PathExpr


1 /*
2  * Copyright (c) 1998-2006 Caucho Technology -- all rights reserved
3  *
4  * This file is part of Resin(R) Open Source
5  *
6  * Each copy or derived work must preserve the copyright notice and this
7  * notice unmodified.
8  *
9  * Resin Open Source is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation; either version 2 of the License, or
12  * (at your option) any later version.
13  *
14  * Resin Open Source is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
17  * of NON-INFRINGEMENT. See the GNU General Public License for more
18  * details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with Resin Open Source; if not, write to the
22  * Free Software Foundation, Inc.
23  * 59 Temple Place, Suite 330
24  * Boston, MA 02111-1307 USA
25  *
26  * @author Scott Ferguson
27  */
28
29 package com.caucho.amber.expr;
30
31 import com.caucho.amber.query.FromItem;
32 import com.caucho.amber.query.QueryParser;
33 import com.caucho.amber.type.AbstractStatefulType;
34
35 /**
36  * Represents an amber mapping query expression
37  */
38 public interface PathExpr extends AmberExpr {
39   /**
40    * Returns the target type.
41    */
42   public AbstractStatefulType getTargetType();
43
44   /**
45    * Creates the expr from the path.
46    */
47   public AmberExpr createField(QueryParser parser, String JavaDoc field);
48
49   /**
50    * Creates an array reference.
51    */
52   public AmberExpr createArray(AmberExpr field);
53
54   /**
55    * Binds the expression as a select item.
56    */
57   public PathExpr bindSelect(QueryParser parser, String JavaDoc tableName);
58
59   /**
60    * Binds the expression as a select item.
61    */
62   public FromItem bindSubPath(QueryParser parser);
63
64   /**
65    * Returns the from item
66    */
67   public FromItem getChildFromItem();
68 }
69
Popular Tags