001: /*
002: * hgcommons 7
003: * Hammurapi Group Common Library
004: * Copyright (C) 2003 Hammurapi Group
005: *
006: * This program is free software; you can redistribute it and/or
007: * modify it under the terms of the GNU Lesser General Public
008: * License as published by the Free Software Foundation; either
009: * version 2 of the License, or (at your option) any later version.
010: *
011: * This program is distributed in the hope that it will be useful,
012: * but WITHOUT ANY WARRANTY; without even the implied warranty of
013: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
014: * Lesser General Public License for more details.
015: *
016: * You should have received a copy of the GNU Lesser General Public
017: * License along with this library; if not, write to the Free Software
018: * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
019: *
020: * URL: http://www.hammurapi.biz/hammurapi-biz/ef/xmenu/hammurapi-group/products/products/hgcommons/index.html
021: * e-Mail: support@hammurapi.biz
022: */
023: package biz.hammurapi.sql.columns;
024:
025: import java.sql.PreparedStatement;
026: import java.sql.ResultSet;
027: import java.sql.ResultSetMetaData;
028: import java.sql.SQLException;
029:
030: import biz.hammurapi.config.Context;
031: import biz.hammurapi.convert.CompositeConverter;
032:
033: /**
034: * @author Pavel Vlasov
035: *
036: * @version $Revision: 1.11 $
037: */
038: public class CharColumn extends Column {
039: private char value;
040:
041: // Original stuff
042: private char originalValue;
043: private boolean isOriginalValueSet;
044:
045: public char getOriginalValue() {
046: return isOriginalValueSet ? originalValue : value;
047: }
048:
049: public void parameterizeOriginal(PreparedStatement ps, int idx)
050: throws SQLException {
051: ps.setInt(idx, getOriginalValue());
052: }
053:
054: public void setOriginal() {
055: originalValue = value;
056: isOriginalValueSet = true;
057: }
058:
059: // End of original stuff
060:
061: public char getValue() {
062: return value;
063: }
064:
065: public void setValue(char value) {
066: if (force || this .value != value) {
067: this .value = value;
068: onChange();
069: }
070: }
071:
072: public CharColumn(String name, boolean isPrimaryKey) {
073: super (name, isPrimaryKey);
074: }
075:
076: public CharColumn(String name, boolean isPrimaryKey, char value) {
077: super (name, isPrimaryKey);
078: this .value = value;
079: }
080:
081: public CharColumn(String name, boolean isPrimaryKey, ResultSet rs)
082: throws SQLException {
083: super (name, isPrimaryKey);
084: ResultSetMetaData metaData = rs.getMetaData();
085: for (int i = 1, c = metaData.getColumnCount(); i <= c; i++) {
086: if (name.equals(metaData.getColumnName(i))) {
087: String strVal = rs.getString(i);
088: if (strVal != null && strVal.length() >= 1) {
089: this .value = strVal.charAt(0);
090: }
091: break;
092: }
093: }
094: }
095:
096: protected void parameterizeInternal(PreparedStatement ps, int idx)
097: throws SQLException {
098: ps.setInt(idx, value);
099: }
100:
101: public Object getObjectValue(boolean ov) {
102: if (ov) {
103: return isOriginalValueSet ? new Character(originalValue)
104: : null;
105: }
106: return new Character(value);
107: }
108:
109: public String toString() {
110: return getName() + (isModified() ? "*" : "") + "='" + value
111: + "'";
112: }
113:
114: public boolean equals(Object otherColumn) {
115: if (otherColumn instanceof CharColumn) {
116: return value == ((CharColumn) otherColumn).value;
117: }
118:
119: return false;
120: }
121:
122: public int hashCode() {
123: return getName().hashCode() ^ value;
124: }
125:
126: public void load(String textValue) {
127: setValue(textValue.length() == 0 ? 0 : textValue.charAt(0));
128: }
129:
130: public void clear() {
131: setValue((char) 0);
132: clearModified();
133: }
134:
135: public void configure(Context context, CompositeConverter converter) {
136: Object o = context.get(getName());
137: if (o != null) {
138: setValue(((Character) converter.convert(o, char.class,
139: false)).charValue());
140: }
141: }
142:
143: protected String getType() {
144: return "char";
145: }
146:
147: public void set(Column source) {
148: setValue(((CharColumn) source).getValue());
149: }
150:
151: /**
152: * Clears modified flag and sets original value to current value.
153: */
154: public void clearModified() {
155: super.clearModified();
156: originalValue = value;
157: }
158: }
|