import org.activiti.engine.impl.db.IdBlock; //导入依赖的package包/类
@Override
public IdBlock execute(CommandContext commandContext) {
    PropertyEntity property = commandContext
            .getPropertyEntityManager()
            .findPropertyById("next.dbid");
    long oldValue = Long.parseLong(property.getValue());
    long newValue = oldValue + idBlockSize;
    property.setValue(Long.toString(newValue));
    return new IdBlock(oldValue, newValue - 1);
}
 

import org.activiti.engine.impl.db.IdBlock; //导入依赖的package包/类
public IdBlock execute(CommandContext commandContext) {
  PropertyEntity property = (PropertyEntity) commandContext
    .getPropertyManager()
    .findPropertyById("next.dbid");
  long oldValue = Long.parseLong(property.getValue());
  long newValue = oldValue+idBlockSize;
  property.setValue(Long.toString(newValue));
  return new IdBlock(oldValue, newValue-1);
}
 

import org.activiti.engine.impl.db.IdBlock; //导入依赖的package包/类
public IdBlock execute(CommandContext commandContext) {
  PropertyEntity property = (PropertyEntity) commandContext
    .getPropertyEntityManager()
    .findPropertyById("next.dbid");
  long oldValue = Long.parseLong(property.getValue());
  long newValue = oldValue+idBlockSize;
  property.setValue(Long.toString(newValue));
  return new IdBlock(oldValue, newValue-1);
}