01: /*
02: * Copyright 2006 Le Duc Bao, Ralf Joachim
03: *
04: * Licensed under the Apache License, Version 2.0 (the "License"); you may not
05: * use this file except in compliance with the License. You may obtain a copy of
06: * the License at
07: *
08: * http://www.apache.org/licenses/LICENSE-2.0
09: *
10: * Unless required by applicable law or agreed to in writing, software
11: * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12: * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13: * License for the specific language governing permissions and limitations under
14: * the License.
15: */
16: package org.castor.ddlgen.typeinfo;
17:
18: import org.castor.ddlgen.DDLGenConfiguration;
19: import org.castor.ddlgen.schemaobject.Field;
20:
21: /**
22: * Final TypeInfo for types having an optional precision parameter.
23: *
24: * @author <a href="mailto:leducbao AT gmail DOT com">Le Duc Bao</a>
25: * @author <a href="mailto:ralf DOT joachim AT syscon DOT eu">Ralf Joachim</a>
26: * @version $Revision: 5951 $ $Date: 2006-04-25 16:09:10 -0600 (Tue, 25 Apr 2006) $
27: * @since 1.1
28: */
29: public final class OptionalPrecisionType extends AbstractType {
30: //--------------------------------------------------------------------------
31:
32: /** Default precision parameter from ddl.properties file. Will be used if no specific
33: * precision is specified at field mapping. */
34: private final Integer _defaultPresision;
35:
36: //--------------------------------------------------------------------------
37:
38: /**
39: * Construct a new TypeInfo instance with given JDBC type, SQL type and Configuration.
40: *
41: * @param jdbcType The JDBC type.
42: * @param sqlType The SQL type.
43: * @param conf The configuration to get default parameter values from.
44: */
45: public OptionalPrecisionType(final String jdbcType,
46: final String sqlType, final DDLGenConfiguration conf) {
47: super (jdbcType, sqlType);
48:
49: String param = PARAM_PREFIX + jdbcType
50: + PARAM_POSTFIX_PRECISION;
51: _defaultPresision = conf.getInteger(param);
52: }
53:
54: //--------------------------------------------------------------------------
55:
56: /**
57: * {@inheritDoc}
58: */
59: public String toDDL(final Field field) {
60: Integer presision = field.getPrecision();
61: if (presision == null) {
62: presision = _defaultPresision;
63: }
64:
65: StringBuffer sb = new StringBuffer();
66: sb.append(getSqlType());
67: if (presision != null) {
68: sb.append('(').append(presision).append(')');
69: }
70: return sb.toString();
71: }
72:
73: //--------------------------------------------------------------------------
74: }
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