com.jporm.rx.query.update.UpdateQueryImpl Maven / Gradle / Ivy
/*******************************************************************************
* Copyright 2013 Francesco Cina'
*
* 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.
******************************************************************************/
/*
* ---------------------------------------------------------------------------- PROJECT : JPOrm CREATED BY : Francesco
* Cina' ON : Feb 23, 2013 ----------------------------------------------------------------------------
*/
package com.jporm.rx.query.update;
import com.jporm.commons.core.exception.JpoOptimisticLockException;
import com.jporm.commons.core.inject.ClassTool;
import com.jporm.commons.core.query.cache.SqlCache;
import com.jporm.persistor.generator.Persistor;
import com.jporm.rx.session.SqlExecutor;
import io.reactivex.Single;
/**
*
*
* notes:
*
* ON : Feb 23, 2013
*
* @author Francesco Cina'
* @version $Revision
*/
public class UpdateQueryImpl implements UpdateQuery {
// private final BEAN bean;
private final BEAN bean;
private final Class clazz;
private final String[] pkAndVersionFieldNames;
private final String[] notPksFieldNames;
private final SqlExecutor sqlExecutor;
private final ClassTool ormClassTool;
private final SqlCache sqlCache;
/**
* @param newBean
* @param serviceCatalog
* @param ormSession
*/
public UpdateQueryImpl(BEAN bean, final Class clazz, final ClassTool ormClassTool, final SqlCache sqlCache, final SqlExecutor sqlExecutor) {
this.bean = bean;
this.clazz = clazz;
this.ormClassTool = ormClassTool;
this.sqlCache = sqlCache;
this.sqlExecutor = sqlExecutor;
pkAndVersionFieldNames = ormClassTool.getDescriptor().getPrimaryKeyAndVersionColumnJavaNames();
notPksFieldNames = ormClassTool.getDescriptor().getNotPrimaryKeyColumnJavaNames();
}
@Override
public Single execute() {
final String updateQuery = sqlCache.update(clazz);
final Persistor persistor = ormClassTool.getPersistor();
final BEAN updatedBean = persistor.increaseVersion(persistor.clone(bean), false);
return sqlExecutor.update(updateQuery, statement -> {
persistor.setBeanValuesToStatement(notPksFieldNames, updatedBean, statement, 0);
persistor.setBeanValuesToStatement(pkAndVersionFieldNames, bean, statement, notPksFieldNames.length);
})
.map(updateResult -> {
if (updateResult.updated() == 0) {
throw new JpoOptimisticLockException("The bean of class [" + clazz //$NON-NLS-1$
+ "] cannot be updated. Version in the DB is not the expected one or the ID of the bean is associated with and existing bean.");
} else {
return updatedBean;
}
});
}
}