Examples with DenseBitVectorCellFactory org.knime.core.data.vector.bitvector.DenseBitVectorCellFactory used on opensource projects

Example 1 with DenseBitVectorCellFactory

use of org.knime.core.data.vector.bitvector.DenseBitVectorCellFactory in project knime-core by knime.

the class BitVectorIntersectionOperator method computeInternal.

/**
 * {@inheritDoc}
 */
@Override
protected boolean computeInternal(final DataCell cell) {
    if (cell instanceof BitVectorValue) {
        BitVectorValue val = (BitVectorValue) cell;
        if (m_v == null) {
            final DenseBitVectorCellFactory dbv = new DenseBitVectorCellFactory(val.length());
            long nextSetBit = val.nextSetBit(0);
            while (nextSetBit >= 0) {
                dbv.set(nextSetBit);
                nextSetBit = val.nextSetBit(nextSetBit + 1);
            }
            m_v = dbv.createDataCell();
        } else {
            m_v = DenseBitVectorCellFactory.and(m_v, val);
        }
    }
    return false;
}

Example 2 with DenseBitVectorCellFactory

use of org.knime.core.data.vector.bitvector.DenseBitVectorCellFactory in project knime-core by knime.

the class BitVectorUnionOperator method computeInternal.

/**
 * {@inheritDoc}
 */
@Override
protected boolean computeInternal(final DataCell cell) {
    if (cell instanceof BitVectorValue) {
        BitVectorValue val = (BitVectorValue) cell;
        if (m_v == null) {
            m_v = new DenseBitVectorCellFactory(val.length()).createDataCell();
        }
        m_v = DenseBitVectorCellFactory.or(m_v, val);
    }
    return false;
}

Example 3 with DenseBitVectorCellFactory

use of org.knime.core.data.vector.bitvector.DenseBitVectorCellFactory in project knime-core by knime.

the class BitVectorXOrOperator method computeInternal.

/**
 * {@inheritDoc}
 */
@Override
protected boolean computeInternal(final DataCell cell) {
    if (cell instanceof BitVectorValue) {
        final BitVectorValue val = (BitVectorValue) cell;
        if (m_v == null) {
            m_v = new DenseBitVectorCellFactory(val.length());
            m_allSetBits = new DenseBitVectorCellFactory(val.length());
        }
        long nextSetBit = val.nextSetBit(0);
        while (nextSetBit >= 0) {
            if (!m_allSetBits.get(nextSetBit)) {
                m_v.set(nextSetBit);
            } else {
                m_v.set(nextSetBit, false);
            }
            m_allSetBits.set(nextSetBit);
            nextSetBit = val.nextSetBit(nextSetBit + 1);
        }
    }
    return false;
}

Example 4 with DenseBitVectorCellFactory

use of org.knime.core.data.vector.bitvector.DenseBitVectorCellFactory in project knime-core by knime.

the class BitVectorPerformanceComparisonBug1532 method createNewDenseBitVectorCells.

private DenseBitVectorCell[] createNewDenseBitVectorCells(final int count, final long vectorLength, final long seed) {
    Random r = new Random(seed);
    DenseBitVectorCell[] result = new DenseBitVectorCell[count];
    int hexLength = (int) (vectorLength / 4);
    StringBuilder b = new StringBuilder(hexLength);
    for (int i = 0; i < count; i++) {
        b.setLength(0);
        for (int j = 0; j < hexLength; j++) {
            b.append(HEX_CHARS[r.nextInt(16)]);
        }
        result[i] = new DenseBitVectorCellFactory(b.toString()).createDataCell();
    }
    return result;
}