org.apache.metamodel.spring.PojoDataContextFactoryBeanDelegate Maven / Gradle / Ivy
/**
* 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.metamodel.spring;
import java.util.ArrayList;
import java.util.Arrays;
import org.apache.metamodel.DataContext;
import org.apache.metamodel.pojo.ArrayTableDataProvider;
import org.apache.metamodel.pojo.PojoDataContext;
import org.apache.metamodel.pojo.TableDataProvider;
import org.apache.metamodel.util.SimpleTableDef;
/**
* {@link DataContextFactoryBeanDelegate} for {@link PojoDataContext}.
*/
public class PojoDataContextFactoryBeanDelegate extends AbstractDataContextFactoryBeanDelegate {
@Override
public DataContext createDataContext(DataContextFactoryParameters params) {
SimpleTableDef[] tableDefs = params.getTableDefs();
if (tableDefs == null || tableDefs.length == 0) {
throw new IllegalArgumentException("Cannot create PojoDataContext with no tableDefs specified");
}
TableDataProvider[] tableDataProviders = new ArrayTableDataProvider[tableDefs.length];
for (int i = 0; i < tableDataProviders.length; i++) {
ArrayTableDataProvider tableDataProvider = new ArrayTableDataProvider(tableDefs[i], new ArrayList());
tableDataProviders[i] = tableDataProvider;
}
String databaseName = params.getDatabaseName();
if (databaseName != null && !databaseName.isEmpty()) {
return new PojoDataContext(databaseName, tableDataProviders);
}
return new PojoDataContext(Arrays.asList(tableDataProviders));
}
}