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Example 6 with StorageException

use of org.apache.jena.tdb.base.StorageException in project jena by apache.

the class BufferChannelMem method write.

// Invert : write(ByteBuffer) = write(ByteBuffer,posn)
@Override
public synchronized int write(ByteBuffer buffer, long loc) {
    checkIfClosed();
    if (TRACKING)
        log("write<<@" + loc);
    if (loc < 0 || loc > bytes.limit())
        // Can write at loc = bytes()
        throw new StorageException("Out of range(" + name + "[write]): " + loc + " [0," + bytes.limit() + ")");
    int x = bytes.position();
    bytes.position((int) loc);
    int len = write(buffer);
    bytes.position(x);
    if (TRACKING)
        log("write>>@" + loc);
    return len;
}
Also used : StorageException(org.apache.jena.tdb.base.StorageException)

Example 7 with StorageException

use of org.apache.jena.tdb.base.StorageException in project jena by apache.

the class RecordRangeIterator method hasNext.

@Override
public boolean hasNext() {
    if (slot != null)
        return true;
    if (currentPage == null)
        return false;
    // Set slot.
    while (currentIdx >= currentPage.getCount()) {
        // Move to next.
        int link = currentPage.getLink();
        if (link < 0) {
            close();
            return false;
        }
        if (currentPage != null)
            pageMgr.release(currentPage);
        RecordBufferPage nextPage = pageMgr.getReadIterator(link);
        // Check currentPage -> nextPage is strictly increasing keys. 
        Record r1 = currentPage.getRecordBuffer().getHigh();
        Record r2 = nextPage.getRecordBuffer().getLow();
        if (Record.keyGE(r1, r2))
            throw new StorageException("RecordRangeIterator: records not strictly increasing: " + r1 + " // " + r2);
        currentPage = nextPage;
        countBlocks++;
        currentIdx = 0;
    }
    slot = currentPage.getRecordBuffer().get(currentIdx);
    currentIdx++;
    if (maxRec != null && Record.keyGE(slot, maxRec)) {
        close();
        return false;
    }
    if (slot == null) {
        close();
        return false;
    }
    countRecords++;
    return true;
}
Also used : Record(org.apache.jena.tdb.base.record.Record) StorageException(org.apache.jena.tdb.base.StorageException)

Aggregations

StorageException (org.apache.jena.tdb.base.StorageException)7 Record (org.apache.jena.tdb.base.record.Record)3