Examples of org.apache.derby.iapi.sql.execute.ExecRowBuilder

Package org.apache.derby.iapi.sql.execute

Examples of org.apache.derby.iapi.sql.execute.ExecRowBuilder

org.apache.derby.iapi.sql.execute.ExecRowBuilder

A class used for storing information on how to build {@code ExecRow}instances. Typically created by the compiler and used during execution to produce and reset row templates.

This class must be {@code Formatable} so that it can be stored in thedatabase as part of a stored prepared statement generated for trigger actions or metadata queries. The stored format does not need to be stable across different versions, since the stored prepared statements are discarded on upgrade and will never be read by other Derby versions than the one that originally wrote them.

            throws StandardException
    {
        int columns = (referencedCols == null) ?
                size() : referencedCols.getNumBitsSet();


        ExecRowBuilder builder = new ExecRowBuilder(columns, indexRow);


        // Get the index of the first column to set in the row template.
        int colNum = (referencedCols == null) ? 0 : referencedCols.anySetBit();


        for (int i = 0; i < size(); i++) {
            ResultColumn rc = (ResultColumn) elementAt(i);


            ValueNode sourceExpr = rc.getExpression();


            if (sourceExpr instanceof CurrentRowLocationNode) {
                builder.setColumn(colNum + 1, newRowLocationTemplate());
            } else if (skipPropagatedCols &&
                    sourceExpr instanceof VirtualColumnNode) {
                // Skip over those columns whose source is the immediate
                // child result set. (No need to generate a wrapper
                // for a SQL NULL when we are smart enough not to pass
                // that wrapper to the store.)
                continue;
            } else {
                builder.setColumn(colNum + 1, rc.getType());
            }


            // Get the index of the next column to set in the row template.
            if (referencedCols == null) {
                colNum++;

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            throws StandardException
    {
        int columns = (referencedCols == null) ?
                size() : referencedCols.getNumBitsSet();


        ExecRowBuilder builder = new ExecRowBuilder(columns, indexRow);


        // Get the index of the first column to set in the row template.
        int colNum = (referencedCols == null) ? 0 : referencedCols.anySetBit();


        for (ResultColumn rc : this) {
            ValueNode sourceExpr = rc.getExpression();


            if (sourceExpr instanceof CurrentRowLocationNode) {
                builder.setColumn(colNum + 1, newRowLocationTemplate());
            } else if (skipPropagatedCols &&
                    sourceExpr instanceof VirtualColumnNode) {
                // Skip over those columns whose source is the immediate
                // child result set. (No need to generate a wrapper
                // for a SQL NULL when we are smart enough not to pass
                // that wrapper to the store.)
                continue;
            } else {
                builder.setColumn(colNum + 1, rc.getType());
            }


            // Get the index of the next column to set in the row template.
            if (referencedCols == null) {
                colNum++;

View Full Code Here


            // arg 4 row template used by bulk insert
            if (bulkInsert) {
                ColumnDescriptorList cdl =
                        targetTableDescriptor.getColumnDescriptorList();
                ExecRowBuilder builder =
                        new ExecRowBuilder(cdl.size(), false);
                for (int i = 0; i < cdl.size(); i++) {
                    ColumnDescriptor cd = cdl.get(i);
                    builder.setColumn(i + 1, cd.getType());
                }
                mb.push(acb.addItem(builder));
            } else {
                mb.push(-1);
            }

View Full Code Here


            // arg 4 row template used by bulk insert
            if (bulkInsert) {
                ColumnDescriptorList cdl =
                        targetTableDescriptor.getColumnDescriptorList();
                ExecRowBuilder builder =
                        new ExecRowBuilder(cdl.size(), false);
                for (int i = 0; i < cdl.size(); i++) {
                    ColumnDescriptor cd = (ColumnDescriptor) cdl.get(i);
                    builder.setColumn(i + 1, cd.getType());
                }
                mb.push(acb.addItem(builder));
            } else {
                mb.push(-1);
            }

View Full Code Here

            throws StandardException
    {
        int columns = (referencedCols == null) ?
                size() : referencedCols.getNumBitsSet();


        ExecRowBuilder builder = new ExecRowBuilder(columns, indexRow);


        // Get the index of the first column to set in the row template.
        int colNum = (referencedCols == null) ? 0 : referencedCols.anySetBit();


        for (int i = 0; i < size(); i++) {
            ResultColumn rc = (ResultColumn) elementAt(i);


            ValueNode sourceExpr = rc.getExpression();


            if (sourceExpr instanceof CurrentRowLocationNode) {
                builder.setColumn(colNum + 1, newRowLocationTemplate());
            } else if (skipPropagatedCols &&
                    sourceExpr instanceof VirtualColumnNode) {
                // Skip over those columns whose source is the immediate
                // child result set. (No need to generate a wrapper
                // for a SQL NULL when we are smart enough not to pass
                // that wrapper to the store.)
                continue;
            } else {
                builder.setColumn(colNum + 1, rc.getType());
            }


            // Get the index of the next column to set in the row template.
            if (referencedCols == null) {
                colNum++;

View Full Code Here

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Related Classes of org.apache.derby.iapi.sql.execute.ExecRowBuilder

org.apache.derby.iapi.types.DataValueDescriptor

org.apache.derby.impl.sql.compile.InsertNode

org.apache.derby.impl.sql.compile.ResultColumnList

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