Examples of com.foundationdb.ais.model.IndexRowComposition

com.foundationdb.ais.model.IndexRowComposition
IndexRowComposition presents an interface for mapping row and hkey fields to the fields of an index. The leading index fields are exactly the fields identified in the Index (i.e. the declared index columns). The remaining fields are whatever is necessary to ensure that all of the hkey is represented.


    protected boolean hasNullIndexSegments(RowData rowData, Index index)
    {
        assert index.leafMostTable().rowDef().getRowDefId() == rowData.getRowDefId();
        int nkeys = index.getKeyColumns().size();
        IndexRowComposition indexRowComposition = index.indexRowComposition();
        for (int i = 0; i < nkeys; i++) {
            int fi = indexRowComposition.getFieldPosition(i);
            if (rowData.isNull(fi)) {
                return true;
            }
        }
        return false;

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        int fields = oldRowDef.getFieldCount();
        // Find the PK and FK fields
        BitSet keyField = new BitSet(fields);
        TableIndex pkIndex = oldRowDef.getPKIndex();
        int nkeys = pkIndex.getKeyColumns().size();
        IndexRowComposition indexRowComposition = pkIndex.indexRowComposition();
        for (int i = 0; i < nkeys; i++) {
            int pkFieldPosition = indexRowComposition.getFieldPosition(i);
            keyField.set(pkFieldPosition, true);
        }
        for (int fkFieldPosition : oldRowDef.getParentJoinFields()) {
            keyField.set(fkFieldPosition, true);
        }

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                             RowDef newRowDef,
                             RowData newRow,
                             Key hKey,
                             WriteIndexRow indexRowBuffer) {
        int nkeys = index.getKeyColumns().size();
        IndexRowComposition indexRowComposition = index.indexRowComposition();
        if(!fieldsEqual(oldRowDef, oldRow, newRowDef, newRow, nkeys, indexRowComposition)) {
            UPDATE_INDEX_TAP.in();
            try {
                long oldZValue = -1;
                long newZValue = -1;

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    }


    public void initialize(RowData rowData, Key hKey, SpatialColumnHandler spatialColumnHandler, long zValue) {
        pKeyAppends = 0;
        int indexField = 0;
        IndexRowComposition indexRowComp = index.indexRowComposition();
        FieldDef[] fieldDefs = index.leafMostTable().rowDef().getFieldDefs();
        RowDataSource rowDataValueSource = new RowDataValueSource();
        while (indexField < indexRowComp.getLength()) {
            // handleSpatialColumn will increment pKeyAppends once for all spatial columns
            if (spatialColumnHandler != null && spatialColumnHandler.handleSpatialColumn(this, indexField, zValue)) {
                if (indexField == index.firstSpatialArgument()) {
                    pKeyAppends++;
                }
            } else {
                if (indexRowComp.isInRowData(indexField)) {
                    FieldDef fieldDef = fieldDefs[indexRowComp.getFieldPosition(indexField)];
                    Column column = fieldDef.column();
                    rowDataValueSource.bind(fieldDef, rowData);
                    pKeyTarget().append(rowDataValueSource,
                                        column.getType());
                } else if (indexRowComp.isInHKey(indexField)) {
                    PersistitKey.appendFieldFromKey(pKey(), hKey, indexRowComp.getHKeyPosition(indexField), index
                        .getIndexName());
                } else {
                    throw new IllegalStateException("Invalid IndexRowComposition: " + indexRowComp);
                }
                pKeyAppends++;

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    public void testIndexMetadata()
    {
        // Index row: e.uid, m.lastLogin, m.profileID, e.eugid
        // HKey for eug table: [U, e.uid, M, E, e.eugid]
        GroupIndex gi = (GroupIndex) groupIndexRowType.index();
        IndexRowComposition rowComposition = gi.indexRowComposition();
        assertEquals(4, rowComposition.getFieldPosition(0));
        assertEquals(2, rowComposition.getFieldPosition(1));
        assertEquals(1, rowComposition.getFieldPosition(2));
        assertEquals(3, rowComposition.getFieldPosition(3));
    }

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        }
        int firstSpatialColumn = groupIndex.isSpatial() ? groupIndex.firstSpatialArgument() : -1;
        SDType storeData = store.createStoreData(session, groupIndex);
        try {
            store.resetForWrite(storeData, groupIndex, indexRow);
            IndexRowComposition irc = groupIndex.indexRowComposition();
            int nFields = irc.getLength();
            int f = 0;
            while(f < nFields) {
                assert irc.isInRowData(f);
                assert ! irc.isInHKey(f);
                if(f == firstSpatialColumn) {
                    copyZValueToIndexRow(groupIndex, row, irc);
                    f += groupIndex.dimensions();
                } else {
                    copyFieldToIndexRow(groupIndex, row, irc.getFieldPosition(f++));
                }
            }
            // Non-null values only required for UNIQUE indexes, which GIs cannot be
            assert !groupIndex.isUnique() : "Unexpected unique index: " + groupIndex;
            indexRow.close(null, null, false);

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Related Classes of com.foundationdb.ais.model.IndexRowComposition

com.foundationdb.qp.row.WriteIndexRow

com.foundationdb.server.store.AbstractStore

com.foundationdb.server.store.StoreGIHandler

com.foundationdb.server.test.it.qp.GroupIndexRowIT

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