Examples with XdmNodeReadTrx org.sirix.api.XdmNodeReadTrx used on opensource projects

Example 1 with XdmNodeReadTrx

use of org.sirix.api.XdmNodeReadTrx in project sirix by sirixdb.

the class PipelineBuilder method addIntExcExpression.

/**
 * Adds a intersect or a exception expression to the pipeline.
 *
 * @param mTransaction Transaction to operate with.
 * @param mIsIntersect true, if expression is an intersection
 */
public void addIntExcExpression(final XdmNodeReadTrx mTransaction, final boolean mIsIntersect) {
    assert getPipeStack().size() >= 2;
    final XdmNodeReadTrx rtx = mTransaction;
    final Axis mOperand2 = getPipeStack().pop().getExpr();
    final Axis mOperand1 = getPipeStack().pop().getExpr();
    final Axis axis = mIsIntersect ? new IntersectAxis(rtx, mOperand1, mOperand2) : new ExceptAxis(rtx, mOperand1, mOperand2);
    if (getPipeStack().empty() || getExpression().getSize() != 0) {
        addExpressionSingle();
    }
    getExpression().add(axis);
}

Example 2 with XdmNodeReadTrx

use of org.sirix.api.XdmNodeReadTrx in project sirix by sirixdb.

the class GeneralComp method atomize.

/**
 * {@inheritDoc}
 */
@Override
protected AtomicValue[] atomize(final Axis mOperand) {
    final XdmNodeReadTrx rtx = getTrx();
    final List<AtomicValue> op = new ArrayList<AtomicValue>();
    AtomicValue atomized;
    // cast to double, if compatible with XPath 1.0 and <, >, >=, <=
    final boolean convert = !(!XPATH_10_COMP || getCompKind() == CompKind.EQ || getCompKind() == CompKind.EQ);
    boolean first = true;
    do {
        if (first) {
            first = false;
        } else {
            mOperand.next();
        }
        if (convert) {
            // cast to double
            Function.fnnumber(rtx);
        }
        atomized = new AtomicValue(rtx.getValue().getBytes(), rtx.getTypeKey());
        op.add(atomized);
    } while (mOperand.hasNext());
    return op.toArray(new AtomicValue[op.size()]);
}

Example 3 with XdmNodeReadTrx

use of org.sirix.api.XdmNodeReadTrx in project sirix by sirixdb.

the class AbstractDiff method emitDiffs.

/**
 * Emit diffs for {@code INSERTED} or {@code DELETED} nodes and traverse accordingly.
 *
 * @param diff kind of diff
 */
private void emitDiffs(final DiffType diff) {
    final Revision revision = diff == DiffType.DELETED ? Revision.OLD : Revision.NEW;
    final int depth = diff == DiffType.DELETED ? mDepth.getOldDepth() : mDepth.getNewDepth();
    final XdmNodeReadTrx rtx = diff == DiffType.DELETED ? mOldRtx : mNewRtx;
    do {
        final DiffDepth diffDepth = new DiffDepth(mDepth.getNewDepth(), mDepth.getOldDepth());
        fireDiff(diff, mNewRtx.getNodeKey(), mOldRtx.getNodeKey(), diffDepth);
        emitNonStructuralDiff(mNewRtx, mOldRtx, diffDepth, diff);
    } while (moveCursor(rtx, revision, Move.DOCUMENT_ORDER) && ((diff == DiffType.INSERTED && mDepth.getNewDepth() > depth) || (diff == DiffType.DELETED && mDepth.getOldDepth() > depth)));
}

Example 4 with XdmNodeReadTrx

use of org.sirix.api.XdmNodeReadTrx in project sirix by sirixdb.

the class DBCollection method getDocuments.

@Override
public Stream<DBNode> getDocuments(final boolean updatable) throws DocumentException {
    final List<Path> resources = mDatabase.listResources();
    final List<DBNode> documents = new ArrayList<>(resources.size());
    for (final Path resourcePath : resources) {
        try {
            final String resourceName = resourcePath.getFileName().toString();
            final ResourceManager resource = mDatabase.getResourceManager(ResourceManagerConfiguration.newBuilder(resourceName).build());
            final XdmNodeReadTrx trx = updatable ? resource.beginNodeWriteTrx() : resource.beginNodeReadTrx();
            documents.add(new DBNode(trx, this));
        } catch (final SirixException e) {
            throw new DocumentException(e.getCause());
        }
    }
    return new ArrayStream<DBNode>(documents.toArray(new DBNode[documents.size()]));
}

Example 5 with XdmNodeReadTrx

use of org.sirix.api.XdmNodeReadTrx in project sirix by sirixdb.

the class DBCollection method getDocumentInternal.

private DBNode getDocumentInternal(final ResourceManagerConfiguration resourceManagerConfig, final int revision, final boolean updatable) throws SirixException {
    final ResourceManager resource = mDatabase.getResourceManager(resourceManagerConfig);
    final int version = revision == -1 ? resource.getMostRecentRevisionNumber() : revision;
    final XdmNodeReadTrx trx;
    if (updatable) {
        if (resource.getAvailableNodeWriteTrx() == 0) {
            final Optional<XdmNodeWriteTrx> optionalWriteTrx;
            optionalWriteTrx = resource.getXdmNodeWriteTrx();
            if (optionalWriteTrx.isPresent()) {
                trx = optionalWriteTrx.get();
            } else {
                trx = resource.beginNodeWriteTrx();
            }
        } else {
            trx = resource.beginNodeWriteTrx();
        }
        if (version < resource.getMostRecentRevisionNumber())
            ((XdmNodeWriteTrx) trx).revertTo(version);
    } else {
        trx = resource.beginNodeReadTrx(version);
    }
    return new DBNode(trx, this);
}