/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.isis.objectstore.jdo.metamodel.facets.prop.column;
import java.math.BigDecimal;
import javax.jdo.annotations.Column;
import org.apache.isis.core.metamodel.facetapi.FacetUtil;
import org.apache.isis.core.metamodel.facetapi.FeatureType;
import org.apache.isis.core.metamodel.facets.Annotations;
import org.apache.isis.core.metamodel.facets.FacetFactoryAbstract;
import org.apache.isis.core.metamodel.facets.FacetedMethod;
import org.apache.isis.core.progmodel.facets.value.bigdecimal.BigDecimalValueFacet;
public class BigDecimalDerivedFromJdoColumnAnnotationFacetFactory extends FacetFactoryAbstract {
private static final int DEFAULT_LENGTH = BigDecimalFacetFallback.DEFAULT_LENGTH;
private static final int DEFAULT_SCALE = BigDecimalFacetFallback.DEFAULT_SCALE;
public BigDecimalDerivedFromJdoColumnAnnotationFacetFactory() {
super(FeatureType.PROPERTIES_ONLY);
}
@Override
public void process(final ProcessMethodContext processMethodContext) {
final Column annotation = Annotations.getAnnotation(processMethodContext.getMethod(), Column.class);
if(BigDecimal.class != processMethodContext.getMethod().getReturnType()) {
return;
}
final BigDecimalValueFacet facet;
final FacetedMethod holder = processMethodContext.getFacetHolder();
if (annotation == null) {
facet = new BigDecimalFacetFallback(holder);
} else {
facet = new BigDecimalFacetDerivedFromJdoColumn(holder, valueElseDefault(annotation.length(), DEFAULT_LENGTH), valueElseDefault(annotation.scale(), DEFAULT_SCALE));
}
FacetUtil.addFacet(facet);
}
Integer valueElseDefault(final int value, final int defaultValue) {
return value != -1? value: defaultValue;
}
}