001: /*
002: * Copyright (c) 1998-2008 Caucho Technology -- all rights reserved
003: *
004: * This file is part of Resin(R) Open Source
005: *
006: * Each copy or derived work must preserve the copyright notice and this
007: * notice unmodified.
008: *
009: * Resin Open Source is free software; you can redistribute it and/or modify
010: * it under the terms of the GNU General Public License as published by
011: * the Free Software Foundation; either version 2 of the License, or
012: * (at your option) any later version.
013: *
014: * Resin Open Source is distributed in the hope that it will be useful,
015: * but WITHOUT ANY WARRANTY; without even the implied warranty of
016: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
017: * of NON-INFRINGEMENT. See the GNU General Public License for more
018: * details.
019: *
020: * You should have received a copy of the GNU General Public License
021: * along with Resin Open Source; if not, write to the
022: * Free Software Foundation, Inc.
023: * 59 Temple Place, Suite 330
024: * Boston, MA 02111-1307 USA
025: *
026: * @author Scott Ferguson
027: */
028:
029: package com.caucho.amber.type;
030:
031: import com.caucho.amber.manager.AmberPersistenceUnit;
032: import com.caucho.java.JavaWriter;
033: import com.caucho.util.L10N;
034:
035: import java.io.IOException;
036: import java.sql.PreparedStatement;
037: import java.sql.ResultSet;
038: import java.sql.SQLException;
039: import java.sql.Types;
040:
041: /**
042: * The primitive short type.
043: */
044: public class PrimitiveShortType extends PrimitiveType {
045: private static final L10N L = new L10N(PrimitiveShortType.class);
046:
047: private static final PrimitiveShortType SHORT_TYPE = new PrimitiveShortType();
048:
049: private PrimitiveShortType() {
050: }
051:
052: /**
053: * Returns the boolean type.
054: */
055: public static PrimitiveShortType create() {
056: return SHORT_TYPE;
057: }
058:
059: /**
060: * Returns the type name.
061: */
062: public String getName() {
063: return "short";
064: }
065:
066: /**
067: * Returns true for a numeric type.
068: */
069: public boolean isNumeric() {
070: return true;
071: }
072:
073: /**
074: * Returns the type as a foreign key.
075: */
076: public Type getForeignType() {
077: return ShortType.create();
078: }
079:
080: /**
081: * Generates the type for the table.
082: */
083: public String generateCreateColumnSQL(AmberPersistenceUnit manager,
084: int length, int precision, int scale) {
085: return manager.getCreateColumnSQL(Types.SMALLINT, length,
086: precision, scale);
087: }
088:
089: /**
090: * Generates a string to load the property.
091: */
092: public int generateLoad(JavaWriter out, String rs, String indexVar,
093: int index) throws IOException {
094: out.print(rs + ".getShort(" + indexVar + " + " + index + ")");
095:
096: return index + 1;
097: }
098:
099: /**
100: * Generates a string to set the property.
101: */
102: public void generateSet(JavaWriter out, String pstmt, String index,
103: String value) throws IOException {
104: out.println(pstmt + ".setShort(" + index + "++, " + value
105: + ");");
106: }
107:
108: /**
109: * Generates a string to set the property.
110: */
111: public void generateSetNull(JavaWriter out, String pstmt,
112: String index) throws IOException {
113: out.println(pstmt + ".setNull(" + index
114: + "++, java.sql.Types.SMALLINT);");
115: }
116:
117: /**
118: * Generates a string to set the property.
119: */
120: public void generateSetVersion(JavaWriter out, String pstmt,
121: String index, String value) throws IOException {
122: out.println(pstmt + ".setShort(" + index + "++, " + value
123: + " + 1);");
124: }
125:
126: /**
127: * Converts to an object.
128: */
129: public String toObject(String value) {
130: return "new Short(" + value + ")";
131: }
132:
133: /**
134: * Converts the value.
135: */
136: public String generateCastFromObject(String value) {
137: return "((Number) " + value + ").shortValue()";
138: }
139:
140: /**
141: * Gets the value.
142: */
143: public Object getObject(ResultSet rs, int index)
144: throws SQLException {
145: short v = rs.getShort(index);
146:
147: return rs.wasNull() ? null : new Short(v);
148: }
149:
150: /**
151: * Converts to an object.
152: */
153: public Object toObject(long value) {
154: return new Short((short) value);
155: }
156:
157: /**
158: * Sets the value.
159: */
160: public void setParameter(PreparedStatement pstmt, int index,
161: Object value) throws SQLException {
162: if (value instanceof Number)
163: pstmt.setString(index, value.toString());
164: else
165: throw new IllegalArgumentException(
166: "Invalid argument for setParameter.");
167: }
168: }
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