org.activiti.engine.impl.cmd.GetNextIdBlockCmd Maven / Gradle / Ivy
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/* 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.activiti.engine.impl.cmd;
import org.activiti.engine.impl.db.IdBlock;
import org.activiti.engine.impl.interceptor.Command;
import org.activiti.engine.impl.interceptor.CommandContext;
import org.activiti.engine.impl.persistence.entity.PropertyEntity;
/**
*/
public class GetNextIdBlockCmd implements Command {
private static final long serialVersionUID = 1L;
protected int idBlockSize;
public GetNextIdBlockCmd(int idBlockSize) {
this.idBlockSize = idBlockSize;
}
public IdBlock execute(CommandContext commandContext) {
PropertyEntity property = (PropertyEntity) commandContext.getPropertyEntityManager().findById("next.dbid");
long oldValue = Long.parseLong(property.getValue());
long newValue = oldValue + idBlockSize;
property.setValue(Long.toString(newValue));
return new IdBlock(oldValue, newValue - 1);
}
}