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.bytecode.JClass;
033: import com.caucho.java.JavaWriter;
034: import com.caucho.util.L10N;
035:
036: import java.io.IOException;
037: import java.sql.Date;
038: import java.sql.PreparedStatement;
039: import java.sql.ResultSet;
040: import java.sql.SQLException;
041: import java.sql.Types;
042:
043: /**
044: * The type of a property.
045: */
046: public class SqlDateType extends Type {
047: private static final L10N L = new L10N(SqlDateType.class);
048:
049: private static final SqlDateType SQL_DATE_TYPE = new SqlDateType();
050:
051: private SqlDateType() {
052: }
053:
054: /**
055: * Returns the singleton SqlDate type.
056: */
057: public static SqlDateType create() {
058: return SQL_DATE_TYPE;
059: }
060:
061: /**
062: * Returns the type name.
063: */
064: public String getName() {
065: return "java.sql.Date";
066: }
067:
068: /**
069: * Returns true if the value is assignable to the Java type.
070: */
071: @Override
072: public boolean isAssignableTo(JClass javaType) {
073: return javaType.isAssignableFrom(java.sql.Date.class);
074: }
075:
076: /**
077: * Generates the type for the table.
078: */
079: public String generateCreateColumnSQL(AmberPersistenceUnit manager,
080: int length, int precision, int scale) {
081: return manager.getCreateColumnSQL(Types.DATE, length,
082: precision, scale);
083: }
084:
085: /**
086: * Generates a string to load the property.
087: */
088: public int generateLoad(JavaWriter out, String rs, String indexVar,
089: int index) throws IOException {
090: out.print(rs + ".getDate(" + indexVar + " + " + index + ")");
091:
092: return index + 1;
093: }
094:
095: /**
096: * Generates a string to set the property.
097: */
098: public void generateSet(JavaWriter out, String pstmt, String index,
099: String value) throws IOException {
100: out.println("if (" + value + " == null)");
101: out.println(" " + pstmt + ".setNull(" + index
102: + "++, java.sql.Types.DATE);");
103: out.println("else");
104: out.println(" " + pstmt + ".setDate(" + index + "++, " + value
105: + ");");
106: }
107:
108: /**
109: * Sets the value.
110: */
111: public void setParameter(PreparedStatement pstmt, int index,
112: Object value) throws SQLException {
113: pstmt.setDate(index, (Date) value);
114: }
115:
116: /**
117: * Gets the value.
118: */
119: public Object getObject(ResultSet rs, int index)
120: throws SQLException {
121: return rs.getDate(index);
122: }
123: }
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