Examples of com.fasterxml.util.membuf.MemBuffersForBytes

com.fasterxml.util.membuf.MemBuffersForBytes
Factory for creating {@link ChunkyBytesMemBuffer}s and {@link StreamyBytesMemBuffer}s, memory buffers that contain byte sequences.
Default segments use {@link java.nio.ByteBuffer} for store byte sequences;this can be overridden by specifying alternate {@link SegmentAllocator} implementation.


public class BufferReuseTest extends MembufTestBase
{
    public void testGlobalReuseWithReads() throws Exception
    {
        ChunkyBytesMemBufferImpl buffer = (ChunkyBytesMemBufferImpl) new MemBuffersForBytes(20, 2, 10).createChunkyBuffer(1, 3);
        SegmentAllocator<?> alloc = buffer.getAllocator();


        assertEquals(1, alloc.getBufferOwnedSegmentCount());
        assertEquals(0, alloc.getReusableSegmentCount());

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        assertEquals(2, alloc.getReusableSegmentCount());
    }


    public void testGlobalReuseWithClear() throws Exception
    {
        ChunkyBytesMemBufferImpl buffer = (ChunkyBytesMemBufferImpl) new MemBuffersForBytes(20, 2, 10).createChunkyBuffer(1, 3);
        SegmentAllocator<?> alloc = buffer.getAllocator();


        assertEquals(1, alloc.getBufferOwnedSegmentCount());
        assertEquals(0, alloc.getReusableSegmentCount());

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public class BufferCloseTest extends MembufTestBase
{
    public void testClosing() throws Exception
    {
        MemBuffersForBytes bufs = new MemBuffersForBytes(20, 4, 10);
        ChunkyBytesMemBufferImpl buffer = (ChunkyBytesMemBufferImpl)bufs.createChunkyBuffer(2, 3);
        SegmentAllocator<?> alloc = bufs.getAllocator();


        // min size 2, so will allocate 2 right away
        assertEquals(2, alloc.getBufferOwnedSegmentCount());
        assertEquals(0, alloc.getReusableSegmentCount());

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            totalSegments = 10;
        }
        int maxPerBuffer = (int) (config.maxPerEntryBuffering.getNumberOfBytes() + OFF_HEAP_BUFFER_SEGMENT_LEN - 1) / OFF_HEAP_BUFFER_SEGMENT_LEN;
        _maxSegmentsPerBuffer = Math.max(2,  maxPerBuffer);
        // and pre-allocate quarter of those buffers right away?
        _offHeapBuffers = new MemBuffersForBytes(OFF_HEAP_BUFFER_SEGMENT_LEN, totalSegments/4, totalSegments);
    }

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Related Classes of com.fasterxml.util.membuf.MemBuffersForBytes

com.fasterxml.storemate.store.impl.StorableStoreImpl

com.fasterxml.util.membuf.impl.BufferCloseTest

com.fasterxml.util.membuf.impl.BufferReuseTest

com.fasterxml.util.membuf.impl.ChunkyBytesMemBufferImpl

com.fasterxml.util.membuf.impl.StreamyBytesMemBufferImpl

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