/*
* Copyright 2006 Le Duc Bao, Ralf Joachim
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package org.castor.ddlgen.typeinfo;
import org.castor.ddlgen.DDLGenConfiguration;
import org.castor.ddlgen.GeneratorException;
import org.castor.ddlgen.schemaobject.Field;
/**
* Final TypeInfo for types having optional precision and decimals parameters. An
* Exception will be throw if not both parameters are specified from the same source
* (mapping or ddl.properties file).
*
* @author <a href="mailto:leducbao AT gmail DOT com">Le Duc Bao</a>
* @author <a href="mailto:ralf DOT joachim AT syscon DOT eu">Ralf Joachim</a>
* @version $Revision: 5951 $ $Date: 2006-04-25 16:09:10 -0600 (Tue, 25 Apr 2006) $
* @since 1.1
*/
public final class OptionalPrecisionDecimalsType extends AbstractType {
//--------------------------------------------------------------------------
/** Default precision parameter from ddl.properties file. Will be used if no specific
* precision and decimals are specified at field mapping. */
private final Integer _defaultPresision;
/** Default decimals parameter from ddl.properties file. Will be used if no specific
* precision and decimals are specified at field mapping. */
private final Integer _defaultDecimals;
//--------------------------------------------------------------------------
/**
* Construct a new TypeInfo instance with given JDBC type, SQL type and Configuration.
*
* @param jdbcType The JDBC type.
* @param sqlType The SQL type.
* @param conf The configuration to get default parameter values from.
*/
public OptionalPrecisionDecimalsType(final String jdbcType, final String sqlType,
final DDLGenConfiguration conf) {
super(jdbcType, sqlType);
String paramPrecision = PARAM_PREFIX + jdbcType + PARAM_POSTFIX_PRECISION;
_defaultPresision = conf.getInteger(paramPrecision);
String paramDecimals = PARAM_PREFIX + jdbcType + PARAM_POSTFIX_DECIMALS;
_defaultDecimals = conf.getInteger(paramDecimals);
}
//--------------------------------------------------------------------------
/**
* {@inheritDoc}
*/
public String toDDL(final Field field) throws GeneratorException {
Integer presision = field.getPrecision();
Integer decimals = field.getDecimals();
if ((presision == null) && (decimals == null)) {
presision = _defaultPresision;
decimals = _defaultDecimals;
} else if ((presision == null) || (decimals == null)) {
throw new GeneratorException(
"Precision or decimal attribute missing for field '" + field.getName()
+ "' of type '" + getJdbcType() + "'");
}
StringBuffer sb = new StringBuffer();
sb.append(getSqlType());
if (presision != null) {
sb.append('(').append(presision).append(", ").append(decimals).append(')');
}
return sb.toString();
}
//--------------------------------------------------------------------------
}