Examples with RecordBuffer org.apache.jena.tdb.base.buffer.RecordBuffer used on opensource projects

Example 21 with RecordBuffer

use of org.apache.jena.tdb.base.buffer.RecordBuffer in project jena by apache.

the class ExtHash method split.

private HashBucket split(int bucketId, HashBucket bucket) {
    // idx is the array offset to the lower of the bucket point pair.
    if (logging()) {
        log("split: Bucket %d : size: %d; Bucket bitlength %d", bucketId, bucket.getCount(), bucket.getTrieBitLen());
        log("split: %s", bucket);
    }
    // Create new bucket, which will be the upper bucket.
    // Low bucket will have the old hash value, 
    // Lengthen the hash; the new will be one more.
    bucket.incTrieBitLen();
    // Bucket hash value is kept in index-order (i.e. high bits are most significant). 
    int hash1 = bucket.getTrieValue() << 1;
    int hash2 = (bucket.getTrieValue() << 1) | 0x1;
    // Reset, now it's longer
    bucket.setTrieValue(hash1);
    if (logging())
        log("split: bucket hashes 0x%04X 0x%04X", hash1, hash2);
    //        // New bucket
    HashBucket bucket2 = hashBucketMgr.create(hash2, bucket.getTrieBitLen());
    if (logging())
        log("New bucket: %s", bucket2);
    //bucket2.setTrieValue(hash2) ;
    RecordBuffer rBuff1 = bucket.getRecordBuffer();
    RecordBuffer rBuff2 = bucket2.getRecordBuffer();
    // Destination indexes into the above
    int idx1 = 0;
    int idx2 = 0;
    for (int i = 0; i < rBuff1.size(); i++) {
        Record r = rBuff1.get(i);
        // Incremented bit length
        int x = trieKey(r, bucket.getTrieBitLen());
        if (x == hash1) {
            if (logging())
                log("Allocate index %d to bucket1", i);
            // We're shifting down records that saty in this bucket.  
            if (idx1 != i)
                rBuff1.set(idx1, r);
            idx1++;
        } else if (x == hash2) {
            if (logging())
                log("Allocate index %d to bucket2", i);
            rBuff2.add(r);
            idx2++;
        } else
            error("Bad trie for allocation to split buckets");
    }
    if (true)
        rBuff1.clear(idx1, bucket.getCount() - idx1);
    rBuff1.setSize(idx1);
    if (logging()) {
        log("split: Lower bucket: %s", bucket);
        log("split: Upper bucket: %s", bucket2);
    }
    // Check with splitAndReorganise()
    hashBucketMgr.put(bucket);
    hashBucketMgr.put(bucket2);
    return bucket2;
}

Example 22 with RecordBuffer

use of org.apache.jena.tdb.base.buffer.RecordBuffer in project jena by apache.

the class TestRecordBuffer method recBufferIterate11.

@Test
public void recBufferIterate11() {
    RecordBuffer rb = make(5, 5);
    Iterator<Record> iter = rb.iterator(intToRecord(3), intToRecord(9));
    same(iter, 4, 6, 8);
}

Example 23 with RecordBuffer

use of org.apache.jena.tdb.base.buffer.RecordBuffer in project jena by apache.

the class TestRecordBuffer method recBuffer14.

@Test
public void recBuffer14() {
    RecordBuffer rb = make(5, 5);
    contains(rb, 2, 4, 6, 8, 10);
    RecordBuffer rb2 = make(5, 5);
    contains(rb2, 2, 4, 6, 8, 10);
    rb.copy(0, rb2, 1, 4);
    contains(rb2, 2, 2, 4, 6, 8);
}

Example 24 with RecordBuffer

use of org.apache.jena.tdb.base.buffer.RecordBuffer in project jena by apache.

the class TestRecordBuffer method recBuffer13.

@Test
public void recBuffer13() {
    RecordBuffer rb = make(5, 5);
    contains(rb, 2, 4, 6, 8, 10);
    rb.clear(1, 3);
    contains(rb, 2, -1, -1, -1, 10);
}

Example 25 with RecordBuffer

use of org.apache.jena.tdb.base.buffer.RecordBuffer in project jena by apache.

the class TestRecordBuffer method recBufferIterate07.

@Test
public void recBufferIterate07() {
    RecordBuffer rb = make(3, 5);
    Iterator<Record> iter = rb.iterator(null, intToRecord(2));
    same(iter);
}