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* 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.
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package org.apache.cayenne.dbsync.merge.token.model;
import org.apache.cayenne.dba.TypesMapping;
import org.apache.cayenne.dbsync.merge.context.MergerContext;
import org.apache.cayenne.dbsync.merge.factory.MergerTokenFactory;
import org.apache.cayenne.dbsync.merge.token.MergerToken;
import org.apache.cayenne.map.DbAttribute;
import org.apache.cayenne.map.DbEntity;
/**
* A {@link MergerToken} that modifies one original {@link DbAttribute} to match another
* new {@link DbAttribute}s type, maxLength and precision. The name and mandatory fields
* are not modified by this token.
*
*/
public class SetColumnTypeToModel extends AbstractToModelToken.Entity {
private DbAttribute columnOriginal;
private DbAttribute columnNew;
public SetColumnTypeToModel(DbEntity entity, DbAttribute columnOriginal, DbAttribute columnNew) {
super("Set Column Type", 65, entity);
this.columnOriginal = columnOriginal;
this.columnNew = columnNew;
}
@Override
public MergerToken createReverse(MergerTokenFactory factory) {
return factory.createSetColumnTypeToDb(getEntity(), columnNew, columnOriginal);
}
@Override
public void execute(MergerContext mergerContext) {
columnOriginal.setType(columnNew.getType());
columnOriginal.setMaxLength(columnNew.getMaxLength());
columnOriginal.setAttributePrecision(columnNew.getAttributePrecision());
columnOriginal.setScale(columnNew.getScale());
mergerContext.getDelegate().dbAttributeModified(columnOriginal);
}
@Override
public String getTokenValue() {
StringBuilder sb = new StringBuilder();
sb.append(getEntity().getName());
sb.append(".");
sb.append(columnNew.getName());
if (columnOriginal.getType() != columnNew.getType()) {
sb.append(" type: ");
sb.append(TypesMapping.getSqlNameByType(columnOriginal.getType()));
sb.append(" -> ");
sb.append(TypesMapping.getSqlNameByType(columnNew.getType()));
}
if (columnOriginal.getMaxLength() != columnNew.getMaxLength()) {
sb.append(" maxLength: ");
sb.append(columnOriginal.getMaxLength());
sb.append(" -> ");
sb.append(columnNew.getMaxLength());
}
if (columnOriginal.getAttributePrecision() != columnNew.getAttributePrecision()) {
sb.append(" precision: ");
sb.append(columnOriginal.getAttributePrecision());
sb.append(" -> ");
sb.append(columnNew.getAttributePrecision());
}
if (columnOriginal.getScale() != columnNew.getScale()) {
sb.append(" scale: ");
sb.append(columnOriginal.getScale());
sb.append(" -> ");
sb.append(columnNew.getScale());
}
return sb.toString();
}
}