Examples of org.apache.derby.iapi.sql.dictionary.ColumnDescriptor

Package org.apache.derby.iapi.sql.dictionary

Examples of org.apache.derby.iapi.sql.dictionary.ColumnDescriptor

org.apache.derby.iapi.sql.dictionary.ColumnDescriptor
This class represents a column descriptor. public methods in this class are:
1. long getAutoincStart()
2. java.lang.String getColumnName()
3. DefaultDescriptor getDefaultDescriptor(DataDictionary dd)
4. DefaultInfo getDefaultInfo
5. UUID getDefaultUUID
6. DataValueDescriptor getDefaultValue
7. int getPosition()
8. UUID getReferencingUUID()
9. TableDescriptor getTableDescriptor
10. DTD getType()
11. hasNonNullDefault
12. isAutoincrement
13. setColumnName
14. setPosition

    LanguageConnectionContext lcc = activation.getLanguageConnectionContext();
    DataDictionary dd = lcc.getDataDictionary();
    DependencyManager dm = dd.getDependencyManager();
    TransactionController tc = lcc.getTransactionExecute();


    ColumnDescriptor columnDescriptor = 
      td.getColumnDescriptor(columnInfo[ix].name);
    DataDescriptorGenerator ddg = dd.getDataDescriptorGenerator();
    int columnPosition = columnDescriptor.getPosition();


    // Clean up after the old default, if non-null
    if (columnDescriptor.hasNonNullDefault())
    {
      // Invalidate off of the old default
      DefaultDescriptor defaultDescriptor = new DefaultDescriptor(dd, columnInfo[ix].oldDefaultUUID, 
                     td.getUUID(), columnPosition);


    
      dm.invalidateFor(defaultDescriptor, DependencyManager.MODIFY_COLUMN_DEFAULT, lcc);
    
      // Drop any dependencies
      dm.clearDependencies(lcc, defaultDescriptor);
    }


    UUID defaultUUID = columnInfo[ix].newDefaultUUID;


    /* Generate a UUID for the default, if one exists
     * and there is no default id yet.
     */
    if (columnInfo[ix].defaultInfo != null &&
      defaultUUID == null)
    {  
      defaultUUID = dd.getUUIDFactory().createUUID();
    }


    /* Get a ColumnDescriptor reflecting the new default */
    columnDescriptor = new ColumnDescriptor(
                           columnInfo[ix].name,
                           columnPosition,
                           columnInfo[ix].dataType,
                           columnInfo[ix].defaultValue,
                           columnInfo[ix].defaultInfo,

View Full Code Here

    ColumnDescriptorList cdl = td.getColumnDescriptorList();
    int           cdlSize = cdl.size();
    
    for(int index = 0; index < cdlSize; index++)
    {
      ColumnDescriptor cd = (ColumnDescriptor) cdl.elementAt(index);


      // If column has a default we drop the default and
      // any dependencies
      if (cd.getDefaultInfo() != null)
      {
        DefaultDescriptor defaultDesc = cd.getDefaultDescriptor(dd);
        dm.clearDependencies(lcc, defaultDesc);
      }
    }
  }

View Full Code Here

     * be used in validateConstraint to check whether any of the
     * data is null.  
     */
    for (int colCtr = 0; colCtr < columnNames.length; colCtr++)
    {
      ColumnDescriptor cd = td.getColumnDescriptor(columnNames[colCtr]);


      if (cd == null)
      {
        throw StandardException.newException(SQLState.LANG_COLUMN_NOT_FOUND_IN_TABLE,
                            columnNames[colCtr],
                            td.getName());
      }


      if (cd.getType().isNullable())
      {
        if (numRows > 0)
        {
          // already found a nullable column so add "AND" 
          if (foundNullable)

View Full Code Here

            //
            if ( forUpdate && !rc.updated() ) { continue; }
            
            if ( rc.hasGenerationClause() )
            {
                ColumnDescriptor    colDesc = rc.getTableColumnDescriptor();
                DataTypeDescriptor  dtd = colDesc.getType();
                DefaultInfo             di = colDesc.getDefaultInfo();
                ValueNode   generationClause = parseGenerationClause( di.getDefaultText(), targetTableDescriptor );


                // insert CAST in case column data type is not same as the
                // resolved type of the generation clause
                generationClause = (ValueNode) getNodeFactory().getNode

View Full Code Here

        raRules = new int[size];
        ForeignKeyConstraintDescriptor fkcd = null;
        TableDescriptor fktd;
        ColumnDescriptorList coldl;
        int[] refColumns; 
        ColumnDescriptor cold; 
        int[] colArray = remapReferencedColumns(cd, rowMap);
        for (int inner = 0; inner < size; inner++)
        {
          fkcd = (ForeignKeyConstraintDescriptor) fkcdl.elementAt(inner);
          fkSetupArrays(dd, fkcd,

View Full Code Here

            //
            if ( forUpdate && !rc.updated() ) { continue; }
            
            if ( rc.hasGenerationClause() )
            {
                ColumnDescriptor    colDesc = rc.getTableColumnDescriptor();
                DataTypeDescriptor  dtd = colDesc.getType();
                DefaultInfo             di = colDesc.getDefaultInfo();
                ValueNode   generationClause = parseGenerationClause( di.getDefaultText(), targetTableDescriptor );


                // insert CAST in case column data type is not same as the
                // resolved type of the generation clause
                generationClause = (ValueNode) getNodeFactory().getNode

View Full Code Here

        raRules = new int[size];
        ForeignKeyConstraintDescriptor fkcd = null;
        TableDescriptor fktd;
        ColumnDescriptorList coldl;
        int[] refColumns; 
        ColumnDescriptor cold; 
        int[] colArray = remapReferencedColumns(cd, rowMap);
        for (int inner = 0; inner < size; inner++)
        {
          fkcd = (ForeignKeyConstraintDescriptor) fkcdl.elementAt(inner);
          fkSetupArrays(dd, fkcd,

View Full Code Here

      }


      /* We have a match.  We need to create a dummy ColumnDescriptor
       * since calling code expects one to get column info.
       */
      ColumnDescriptor cd = new ColumnDescriptor(
                      rc.getName(),
                      matchRC.getVirtualColumnId(),
                      matchRC.getType(),
                      null,
                      null,

View Full Code Here

      ResultColumn rc = (ResultColumn) elementAt(index);


      if (rc.getTypeId().streamStorable())
      {
                //System.out.println("    streamStorable=true");
        ColumnDescriptor cd = rc.getTableColumnDescriptor();
        isSS[cd.getPosition()-1] = true;
      }
    }


    for (int ix=0;ix<isSS.length;ix++) if (isSS[ix]) ssCount++;

View Full Code Here

    int[] baseCols = cd.getIndexDescriptor().baseColumnPositions();
    ExecRow row = getExecutionFactory().getValueRow(baseCols.length + 1);


    for (int i = 0; i < baseCols.length; i++)
    {
      ColumnDescriptor coldes = td.getColumnDescriptor(baseCols[i]);
      DataTypeDescriptor dataType = coldes.getType();


      // rc = getResultColumn(baseCols[i]);
        // rc = (ResultColumn) at(baseCols[i] - 1);
      // dataType = rc.getTypeServices();
      DataValueDescriptor dataValue = dataType.getNull();

View Full Code Here

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