public Command revertCommand(Command command)
{
int commandType=command.getCommandType();
Int32 entityId = command.getEntityId();
Int32 childEntityId = command.getChildEntityId();
Int32 schemaId=(Int32)command.GetSchemaId();
Int32 coreManagerId=command.GetCoreManagerKey();
Int32 sessionId=command.GetSessionId();
bool lockEntity=command.getLock();
bool oldLock=command.getOldLock();
NodeAttribute[] oldAttributes=command.getOldAttributes();
NodeAttribute[] attributes=command.getAttributes();
byte[] arcName=command.getArcName();
long lockTimeout=command.getLockTimeOut();
switch (commandType){
case PlanckDBConstants.CREATE_NEW_ENTITY:{
return buildDeleteNode(entityId,lockEntity,schemaId,coreManagerId,sessionId, lockTimeout, attributes);
}
case PlanckDBConstants.DELETE_ENTITY:{
Command newCommand= buildCreateNode(oldLock,schemaId,coreManagerId,sessionId, lockTimeout, oldAttributes);
newCommand.Push(PlanckDBConstants.ENTITY_ID, PlanckDBConstants.INTEGER,entityId);
return newCommand;
}
case PlanckDBConstants.ADD_CHILD_ENTITY_TO_PARENT_ENTITY:{
return buildRemoveChildFromParentNode(entityId,arcName,childEntityId,schemaId,coreManagerId,sessionId, lockTimeout);
}
case PlanckDBConstants.REMOVE_CHILD_ENTITY_FROM_PARENT_ENTITY:{
return buildAddChildToParentNode(entityId,childEntityId,arcName,schemaId,coreManagerId,sessionId, lockTimeout);
}
case PlanckDBConstants.UPDATE_ENTITY:{
Command newCommand = buildUpdateNode(entityId, schemaId, coreManagerId, sessionId, lockTimeout, attributes);
newCommand.Push(PlanckDBConstants.OLD_ATTRIBUTES, PlanckDBConstants.ATTRIBUTE_MAP,oldAttributes);
return newCommand;
}
case PlanckDBConstants.ADD_ATTRIBUTE:{
return buildRemoveAttributes(entityId,schemaId,coreManagerId,sessionId,lockTimeout,attributes);
}
case PlanckDBConstants.REMOVE_ATTRIBUTE:{
return buildAddAttributes(entityId,schemaId,coreManagerId,sessionId, lockTimeout, oldAttributes);
}
}
throw new PlanckDBException("unsupported state the should not reach to this point of the code");
}