01: /*
02: * Copyright (c) 1998-2008 Caucho Technology -- all rights reserved
03: *
04: * This file is part of Resin(R) Open Source
05: *
06: * Each copy or derived work must preserve the copyright notice and this
07: * notice unmodified.
08: *
09: * 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.QueryParseException;
33: import com.caucho.amber.query.QueryParser;
34: import com.caucho.amber.type.EntityType;
35: import com.caucho.util.L10N;
36:
37: /**
38: * Represents from-item table.
39: */
40: public class TableIdExpr extends SchemaExpr {
41: private static final L10N L = new L10N(TableIdExpr.class);
42:
43: private EntityType _type;
44: private String _name;
45:
46: /**
47: * Creates the table id expr.
48: */
49: public TableIdExpr(EntityType type, String name) {
50: _type = type;
51: _name = name;
52: }
53:
54: /**
55: * Returns the entity type.
56: */
57: public EntityType getEntityType() {
58: return _type;
59: }
60:
61: /**
62: * Returns the tail name.
63: */
64: public String getTailName() {
65: return _name;
66: }
67:
68: /**
69: * Creates a field-based schema.
70: */
71: public SchemaExpr createField(QueryParser parser, String name)
72: throws QueryParseException {
73: throw parser.error(L
74: .l("'{0}.{1}' is not allowed.", _name, name));
75: }
76:
77: /**
78: * Adds the from item.
79: */
80: public FromItem addFromItem(QueryParser parser, String id)
81: throws QueryParseException {
82: // jpa/0l12
83: FromItem fromItem = parser.addFromItem(getEntityType(),
84: getEntityType().getTable(), id);
85:
86: return fromItem;
87: }
88: }
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