Examples of org.apache.derby.iapi.types.SQLLongint

org.apache.derby.iapi.types.SQLLongint
SQLLongint satisfies the DataValueDescriptor interfaces (i.e., OrderableDataType). It implements a bigint column, e.g. for * storing a column value; it can be specified when constructed to not allow nulls. Nullability cannot be changed after construction, as it affects the storage size and mechanism.
Because OrderableDataType is a subtype of DataType, SQLLongint can play a role in either a DataType/Row or a OrderableDataType/Row, interchangeably.
We assume the store has a flag for nullness of the value, and simply return a 0-length array for the stored form when the value is null.
PERFORMANCE: There are likely alot of performance improvements possible for this implementation -- it new's Long more than it probably wants to.

      NumberDataValue increment = 
        (NumberDataValue)readRow.getColumn(SYSCOLUMNSRowFactory.SYSCOLUMNS_AUTOINCREMENTINC);
      aiValue += increment.getLong();
    }
    row.setColumn(SYSCOLUMNSRowFactory.SYSCOLUMNS_AUTOINCREMENTVALUE,
            new SQLLongint(aiValue));


    ti.updateRow(keyRow, row,
           SYSCOLUMNSRowFactory.SYSCOLUMNS_INDEX1_ID,
           bArray, 
           colsToUpdate,

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            heapCC.fetch( rowLocation, row.getRowArray(), columnToUpdate, wait );


      NumberDataValue oldValueOnDisk = (NumberDataValue) row.getColumn( columnNum );


            SQLLongint expectedOldValue;
            if ( oldValue == null ) { expectedOldValue = new SQLLongint(); }
            else { expectedOldValue = new SQLLongint( oldValue.longValue() ); }


            // only update value if what's on disk is what we expected
            if ( ( oldValue == null ) || ( expectedOldValue.compare( oldValueOnDisk ) == 0 ) )
            {
                SQLLongint newValueOnDisk;
                if ( newValue == null ) { newValueOnDisk = new SQLLongint(); }
                else { newValueOnDisk = new SQLLongint( newValue.longValue() ); }
                
                row.setColumn( columnNum, newValueOnDisk );
                heapCC.replace( rowLocation, row.getRowArray(), columnToUpdate );


                return true;

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      DataValueDescriptor      conglomNumberOrderable = null;
      TabInfoImpl            ti = coreInfo[SYSCONGLOMERATES_CORE_NUM];
      SYSCONGLOMERATESRowFactory  rf = (SYSCONGLOMERATESRowFactory) ti.getCatalogRowFactory();


      conglomNumberOrderable = 
          new SQLLongint(conglomerateNumber);


    ScanQualifier[][] scanQualifier = exFactory.getScanQualifier(1);
      scanQualifier[0][0].setQualifier(
          rf.SYSCONGLOMERATES_CONGLOMERATENUMBER - 1,  /* column number */
          conglomNumberOrderable,

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      NumberDataValue increment = 
        (NumberDataValue)readRow.getColumn(SYSCOLUMNSRowFactory.SYSCOLUMNS_AUTOINCREMENTINC);
      aiValue += increment.getLong();
    }
    row.setColumn(SYSCOLUMNSRowFactory.SYSCOLUMNS_AUTOINCREMENTVALUE,
            new SQLLongint(aiValue));


    ti.updateRow(keyRow, row,
           SYSCOLUMNSRowFactory.SYSCOLUMNS_INDEX1_ID,
           bArray, 
           colsToUpdate,

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                SanityManager.ASSERT(baseRowExists, "base row not found");
            }


      NumberDataValue oldValueOnDisk = (NumberDataValue) row.getColumn( columnNum );


            SQLLongint expectedOldValue;
            if ( oldValue == null ) { expectedOldValue = new SQLLongint(); }
            else { expectedOldValue = new SQLLongint( oldValue.longValue() ); }


            // only update value if what's on disk is what we expected
            if ( ( oldValue == null ) || ( expectedOldValue.compare( oldValueOnDisk ) == 0 ) )
            {
                SQLLongint newValueOnDisk;
                if ( newValue == null ) { newValueOnDisk = new SQLLongint(); }
                else { newValueOnDisk = new SQLLongint( newValue.longValue() ); }
                
                row.setColumn( columnNum, newValueOnDisk );
                heapCC.replace( rowLocation, row.getRowArray(), columnToUpdate );


                return true;

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    this.page = page;


    // Page numbers start out "invalid".  Presumably the caller will
    // link the page into a page chain as one of its next steps.
    leftSiblingPageNumber  = 
            new SQLLongint(ContainerHandle.INVALID_PAGE_NUMBER);
    rightSiblingPageNumber = 
            new SQLLongint(ContainerHandle.INVALID_PAGE_NUMBER);


    // Remember the parent if there is one and we're remembering parents.
        parentPageNumber = new SQLLongint( 
            (parent == null ?  
                 ContainerHandle.INVALID_PAGE_NUMBER : 
                 parent.page.getPageNumber()));


    // All pages start out not being root pages.  The caller will setIsRoot
    // if this is going to be a root page. Zero means false - see 
    // getIsRoot/setIsRoot.
    this.isRoot = new SQLLongint(isRoot ? 1 : 0);


        // set the rest of the state, as passed in.
    this.level   = new SQLLongint(level);
        this.version = new StorableFormatId(getTypeFormatId());


        // If it is a root page then store the real btree conglomerate, if it
        // is not a root page then set up an "empty" btree conglomerate which
        // will be stored as "null".

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            (leftsib == null ? ContainerHandle.INVALID_PAGE_NUMBER : 
                               leftsib.page.getPageNumber());
        
    // Store the field.
    if (leftSiblingPageNumber == null)
      leftSiblingPageNumber = new SQLLongint(left_sib_pageno);
        else
            this.leftSiblingPageNumber.setValue(left_sib_pageno);


    // Write the field through to the underlying row
        try

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            (rightsib == null ? ContainerHandle.INVALID_PAGE_NUMBER : 
                                rightsib.page.getPageNumber());
        
    // Store the field.
    if (rightSiblingPageNumber == null)
      rightSiblingPageNumber = new SQLLongint(right_sib_pageno);
        else
            this.rightSiblingPageNumber.setValue(right_sib_pageno);


    // Write the field through to the underlying row
        try

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        throws StandardException
  {
    if (this.leftSiblingPageNumber == null)
    {
      // Fault in the page number.
      this.leftSiblingPageNumber = new SQLLongint();


            if (SanityManager.DEBUG)
                SanityManager.ASSERT(scratch_row != null);


            scratch_row[CR_LEFTSIB_COLID] = this.leftSiblingPageNumber;

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        throws StandardException
  {
    if (this.rightSiblingPageNumber == null)
    {
      // Fault in the page number.
      this.rightSiblingPageNumber = new SQLLongint();


            scratch_row[CR_RIGHTSIB_COLID] = this.rightSiblingPageNumber;


            fetchDesc.setValidColumns(CR_RIGHTSIB_BITSET);
            this.page.fetchFromSlot(

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