Example 1 with BasePage
use of org.apache.derby.impl.store.raw.data.BasePage in project derby by apache.
the class InitPageOperation method getPageForRedoRecovery.
/*
* Override PageBasicOperation's getPageForRedoRecovery
*/
/**
* If we are in load tran, this page may not exist for the container yet.
* We need to create it first.
*
* This routine is called as the last resort of find page, the container
* handle has already been found and it is not dropped.
*
* @exception StandardException Standard Derby policy.
*/
protected BasePage getPageForRedoRecovery(Transaction xact) throws StandardException {
BasePage p = super.getPageForRedoRecovery(xact);
if (p != null)
return p;
// create the page
// RESOLVE: we need the page format to properly recreate an Alloc page
// NEED TO UPGRADE this log record.
p = (BasePage) containerHdl.reCreatePageForRedoRecovery(pageFormatId, getPageId().getPageNumber(), pageOffset);
return p;
}
Also used :
BasePage(org.apache.derby.impl.store.raw.data.BasePage)
Example 2 with BasePage
use of org.apache.derby.impl.store.raw.data.BasePage in project derby by apache.
the class DeleteOperation method restoreLoggedRow.
/*
* LogicalUndoable methods
*/
/**
* Restore the row stored in the optional data of the log record.
*
* @exception IOException error reading from log stream
* @exception StandardException Standard Derby error policy
*/
public void restoreLoggedRow(Object[] row, LimitObjectInput in) throws StandardException, IOException {
Page p = null;
try {
// the optional data is written by the page in the same format it
// stores record on the page,
// only a page knows how to restore a logged row back to a storable row
// first get the page where the insert went even though the row may no
// longer be there
p = getContainer().getPage(getPageId().getPageNumber());
((BasePage) p).restoreRecordFromStream(in, row);
} finally {
if (p != null) {
p.unlatch();
p = null;
}
}
}