001: /***************************************************************
002: * This file is part of the [fleXive](R) project.
003: *
004: * Copyright (c) 1999-2008
005: * UCS - unique computing solutions gmbh (http://www.ucs.at)
006: * All rights reserved
007: *
008: * The [fleXive](R) project is free software; you can redistribute
009: * it and/or modify it under the terms of the GNU General Public
010: * License as published by the Free Software Foundation;
011: * either version 2 of the License, or (at your option) any
012: * later version.
013: *
014: * The GNU General Public License can be found at
015: * http://www.gnu.org/copyleft/gpl.html.
016: * A copy is found in the textfile GPL.txt and important notices to the
017: * license from the author are found in LICENSE.txt distributed with
018: * these libraries.
019: *
020: * This library is distributed in the hope that it will be useful,
021: * but WITHOUT ANY WARRANTY; without even the implied warranty of
022: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
023: * GNU General Public License for more details.
024: *
025: * For further information about UCS - unique computing solutions gmbh,
026: * please see the company website: http://www.ucs.at
027: *
028: * For further information about [fleXive](R), please see the
029: * project website: http://www.flexive.org
030: *
031: *
032: * This copyright notice MUST APPEAR in all copies of the file!
033: ***************************************************************/package com.flexive.sqlParser;
034:
035: /**
036: * Property reference class.
037: *
038: * @author Gregor Schober (gregor.schober@flexive.com), UCS - unique computing solutions gmbh (http://www.ucs.at)
039: */
040: public class Property extends Value {
041:
042: private String tableAlias;
043: private String property;
044: private String field;
045: private Boolean assignment = null;
046:
047: /**
048: * Constructor.
049: *
050: * @param tableAlias the table the property belongs to
051: * @param property the property
052: * @param field null, or the field to use from the property (eg. "m.mandator.name" where name is the field to
053: * use from the mandator)
054: */
055: public Property(String tableAlias, String property, String field) {
056: super (tableAlias + "." + property);
057: this .tableAlias = tableAlias.toUpperCase();
058: this .property = property.toUpperCase();
059: this .field = field == null ? null : field.trim().toUpperCase();
060: }
061:
062: /**
063: * The field that should be used from the property, or null.
064: * <p/>
065: * If set the value is always a uppercase string
066: *
067: * @return the field
068: */
069: public String getField() {
070: return field;
071: }
072:
073: /**
074: * Returns true if a field is set.
075: *
076: * @return true if a field is set
077: */
078: public boolean hasField() {
079: return field != null && field.length() > 0;
080: }
081:
082: /**
083: * Returns a string representation of the object.
084: *
085: * @return a string representation of the object
086: */
087: public String toString() {
088: return this .getFunctionsStart() + tableAlias + "." + property
089: + this .getFunctionsEnd();
090: }
091:
092: /**
093: * Returns the table alias, this is a empty string the the value info
094: * represents a constant value.
095: *
096: * @return the table alias
097: */
098: public String getTableAlias() {
099: return this .tableAlias;
100: }
101:
102: /**
103: * Is this a property or an assignment?
104: *
105: * @return property or assignment?
106: */
107: public synchronized boolean isAssignment() {
108: if (assignment == null)
109: this .assignment = property.indexOf('/') > 0
110: || property.charAt(0) == '#';
111: return assignment;
112: }
113:
114: /**
115: * Get the name of the property/assignment
116: *
117: * @return name of the property/assignment
118: */
119: public String getPropertyName() {
120: return this .property;
121: }
122:
123: /**
124: * Returns true if this property is a wildcard.
125: *
126: * @return true if this property is a wildcard
127: */
128: public boolean isWildcard() {
129: return this .property.equals("*");
130: }
131:
132: }
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