01: /*
02: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
03: *
04: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
05: *
06: * The contents of this file are subject to the terms of either the GNU
07: * General Public License Version 2 only ("GPL") or the Common
08: * Development and Distribution License("CDDL") (collectively, the
09: * "License"). You may not use this file except in compliance with the
10: * License. You can obtain a copy of the License at
11: * http://www.netbeans.org/cddl-gplv2.html
12: * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
13: * specific language governing permissions and limitations under the
14: * License. When distributing the software, include this License Header
15: * Notice in each file and include the License file at
16: * nbbuild/licenses/CDDL-GPL-2-CP. Sun designates this
17: * particular file as subject to the "Classpath" exception as provided
18: * by Sun in the GPL Version 2 section of the License file that
19: * accompanied this code. If applicable, add the following below the
20: * License Header, with the fields enclosed by brackets [] replaced by
21: * your own identifying information:
22: * "Portions Copyrighted [year] [name of copyright owner]"
23: *
24: * Contributor(s):
25: *
26: * The Original Software is NetBeans. The Initial Developer of the Original
27: * Software is Sun Microsystems, Inc. Portions Copyright 1997-2007 Sun
28: * Microsystems, Inc. All Rights Reserved.
29: *
30: * If you wish your version of this file to be governed by only the CDDL
31: * or only the GPL Version 2, indicate your decision by adding
32: * "[Contributor] elects to include this software in this distribution
33: * under the [CDDL or GPL Version 2] license." If you do not indicate a
34: * single choice of license, a recipient has the option to distribute
35: * your version of this file under either the CDDL, the GPL Version 2 or
36: * to extend the choice of license to its licensees as provided above.
37: * However, if you add GPL Version 2 code and therefore, elected the GPL
38: * Version 2 license, then the option applies only if the new code is
39: * made subject to such option by the copyright holder.
40: */
41: package org.netbeans.modules.sql.framework.model;
42:
43: /**
44: * Model for operators supported by SQLBuilder
45: *
46: * @author Ritesh Adval, Sudhi Seshahcala
47: * @version $Revision$
48: */
49: public interface SQLGenericOperator extends SQLOperator,
50: SQLCanvasObject {
51:
52: // attribute name for parenthesis
53: public static final String ATTR_PARENTHESIS = "parenthesis";
54:
55: /**
56: * Indicates weather this operator has variable number of arguments.
57: *
58: * @return true if operator has variable number of arguments; else, false.
59: */
60: public boolean hasVariableArgs();
61:
62: /**
63: * check if operator is an aggregate function
64: *
65: * @return bool
66: */
67: public boolean isAggregateFunction();
68:
69: /**
70: * Determines if input referenced by the given argument name can received a link from
71: * the given SQLObject without breaking type casting rules.
72: *
73: * @param argName name of the operator input to which the source operator is being
74: * connected.
75: * @param input SQLObject to which input argument is being connected.
76: * @return true if 'argName' can be connected to input, false otherwise
77: */
78: public int isCastable(String argName, SQLObject input);
79:
80: }
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