Examples with PredicateFilterAxis org.sirix.axis.filter.PredicateFilterAxis used on opensource projects

Example 1 with PredicateFilterAxis

use of org.sirix.axis.filter.PredicateFilterAxis in project sirix by sirixdb.

the class PipelineBuilder method addPredicate.

/**
 * Adds a predicate to the pipeline.
 *
 * @param pRtx transaction to operate with
 */
public void addPredicate(final XdmNodeReadTrx pRtx) {
    assert getPipeStack().size() >= 2;
    final Axis predicate = getPipeStack().pop().getExpr();
    if (predicate instanceof LiteralExpr) {
        predicate.hasNext();
        // if is numeric literal -> abbrev for position()
        final int type = pRtx.getTypeKey();
        if (type == pRtx.keyForName("xs:integer") || type == pRtx.keyForName("xs:double") || type == pRtx.keyForName("xs:float") || type == pRtx.keyForName("xs:decimal")) {
            throw new IllegalStateException("function fn:position() is not implemented yet.");
        // getExpression().add(
        // new PosFilter(transaction, (int)
        // Double.parseDouble(transaction
        // .getValue())));
        // return; // TODO: YES! it is dirty!
        // AtomicValue pos =
        // new AtomicValue(mTransaction.getItem().getRawValue(),
        // mTransaction
        // .keyForName("xs:integer"));
        // long position = mTransaction.getItemList().addItem(pos);
        // mPredicate.reset(mTransaction.getItem().getKey());
        // IAxis function =
        // new FNPosition(mTransaction, new ArrayList<IAxis>(),
        // FuncDef.POS.getMin(), FuncDef.POS
        // .getMax(),
        // mTransaction.keyForName(FuncDef.POS.getReturnType()));
        // IAxis expectedPos = new LiteralExpr(mTransaction, position);
        // 
        // mPredicate = new ValueComp(mTransaction, function,
        // expectedPos, CompKind.EQ);
        }
    }
    getExpression().add(new PredicateFilterAxis(pRtx, predicate));
}