org.jpox.store.rdbms.request
Class InsertRequest
java.lang.Object
org.jpox.store.rdbms.request.Request
org.jpox.store.rdbms.request.InsertRequest
- public class InsertRequest
- extends Request
Class to provide a means of insertion of records to a data store.
Extends basic request class implementing the execute method to do a JDBC
insert operation.
When inserting an object with inheritance this will involve 1 InsertRequest
for each table involved. So if we have a class B that extends class A and they
both use "new-table" inheritance strategy, we will have 2 InsertRequests, one for
table A, and one for table B. When the InsertRequest starts to populate its statement
and it has a PC field, this calls PersistenceCapableMapping.setObject(). This then
checks if the other PC object is yet persistent and, if not, will persist it
before processing this objects INSERT. This forms the key to
"persistence-by-reachability".
- Version:
- $Revision: 1.50 $
Method Summary |
void |
execute(StateManager sm)
Method performing the insertion of the record from the datastore. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
InsertRequest
public InsertRequest(DatastoreClass table,
java.lang.Class cls,
ClassLoaderResolver clr)
- Constructor, taking the table. Uses the structure of the datastore
table to build a basic query.
- Parameters:
table
- The Class Table representing the datastore table to insert.cls
- Class of objects being updatedclr
- ClassLoader resolver
execute
public void execute(StateManager sm)
- Method performing the insertion of the record from the datastore. Takes
the constructed insert query and populates with the specific record
information.
- Specified by:
execute
in class Request
- Parameters:
sm
- The state manager for the record to be inserted
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