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


        while (page != null)
        {
            D_HeapController.diag_page(page, prop, stat);
            pageid = page.getPageNumber();
            page.unlatch();
            page = container.getNextPage(pageid);
        }


        return(D_HeapController.diag_tabulate(prop, stat));
    }

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            // Check to see if there is enough space on the page
            // for the row.
            rh = page.insert(row, null, insert_mode,
        AccessFactoryGlobals.HEAP_OVERFLOW_THRESHOLD);
            page.unlatch();
            page = null;


            // If we have found a page with enough space for the row,
            // insert it and release exclusive access to the page.
            if (rh != null)

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                    Page.INSERT_OVERFLOW : Page.INSERT_DEFAULT;
            
            rh = page.insert(row, null, insert_mode,
        AccessFactoryGlobals.HEAP_OVERFLOW_THRESHOLD);


            page.unlatch();
            page = null;


            // If we have found a page with enough space for the row,
            // insert it and release exclusive access to the page.
            if (rh != null)

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        // 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.offendingRowLocation(rowlocation,
                                                   heap.getContainerid());
                }
      }
      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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            for (int i = 3; i > 0; i--)
            {
                Page page = addPage(handle, false);
                lastInsertedPage[i] = page.getPageNumber();
                page.unlatch();
            }
        }
    }


  /*

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      ((BasePage)p).restoreRecordFromStream(in, row);


    } finally {


      if (p != null) {
        p.unlatch();
        p = null;
      }
    }
  }

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        finally 
        {


      if (firstPage != null) 
            {
        firstPage.unlatch();
        firstPage = null;
      }
      
      containerCache.release(container);

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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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