Examples of org.apache.derby.iapi.store.raw.Page.unlatch()

Class org.apache.derby.iapi.store.raw.Page

Examples of org.apache.derby.iapi.store.raw.Page.unlatch()

org.apache.derby.iapi.store.raw.Page.unlatch()
Unlatch me, the page is exclusivly latched by its current user until this method call is made.
After using this method the caller must throw away the reference to the Page object, e.g.
```
 ref.unlatch(); ref = null; 
```
The page will be released automatically at the close of the container if this method is not called explictly.
MT - latched

        // At this point with long rows the raw store will guarantee
        // that any size row will fit on an empty page.


        rh = page.insert(row, null, Page.INSERT_OVERFLOW,
      AccessFactoryGlobals.HEAP_OVERFLOW_THRESHOLD);
        page.unlatch();
        page = null;


        if (SanityManager.DEBUG)
        {
            // a null will only be returned if this page is not empty

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            AccessFactoryGlobals.HEAP_OVERFLOW_THRESHOLD)) 
                                == null)
        {
          // Insert faied, row did not fit.  Get a new page.  


          page.unlatch();
          page = null;


          page = open_conglom.getContainer().addPage();


          // RESOLVE (mikem) - no long rows yet so the following code

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        {
          rowlocation.setFrom(rh);
          rowSource.rowLocation(rowlocation);
        }
      }
      page.unlatch();
      page = null;


      // Done with the container, now we need to flush it to disk since
      // it is unlogged.
            if (!heap.isTemporary())

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                control_row,
                (FormatableBitSet) null,
                (LogicalUndo) null, 
                Page.INSERT_OVERFLOW,
                AccessFactoryGlobals.HEAP_OVERFLOW_THRESHOLD);
            page.unlatch();
            page = null;


            // Don't include the control row in the estimated row count.
            container.setEstimatedRowCount(0, /* unused flag */ 0);
        }

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        finally
        {
            if (container != null)
                container.close();
            if (page !=null)
                page.unlatch();
        }
  }


    /**
     * Create a heap conglomerate during the boot process.

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            page.updateAtSlot(
                Page.FIRST_SLOT_NUMBER,
                control_row,
                (FormatableBitSet) null);


            page.unlatch();
            page = null;
        }
        finally
        {
            if (container != null)

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        finally
        {
            if (container != null)
                container.close();
            if (page !=null)
                page.unlatch();
        }


        return;
    }

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                    // the commit will close the underlying 
                    open_conglom.reopen();
                }
                else
                {
                    page.unlatch();
                    page = null;
                }


                page = open_conglom.getContainer().getNextPage(pageno);
            }

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        // work gets fired twice, in that case, the second time it is
        // fired, this overflow page may not part of this row chain
        // that is being updated.
        Page firstPageOnColumnChain = getOverflowPage(overflowPage);
        PageTimeStamp ts = firstPageOnColumnChain.currentTimeStamp();
        firstPageOnColumnChain.unlatch();


        RawTransaction rxact = (RawTransaction)owner.getTransaction();


        ReclaimSpace work = 
          new ReclaimSpace(ReclaimSpace.COLUMN_CHAIN,

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        // work gets fired twice, in that case, the second time it is
        // fired, this overflow page may not part of this row chain
        // that is being updated.
        Page firstPageOnColumnChain = getOverflowPage(overflowPage);
        PageTimeStamp ts = firstPageOnColumnChain.currentTimeStamp();
        firstPageOnColumnChain.unlatch();


        RawTransaction rxact = (RawTransaction)owner.getTransaction();


        ReclaimSpace work = 
          new ReclaimSpace(ReclaimSpace.COLUMN_CHAIN,

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