Package com.hp.hpl.jena.tdb.base.block

Examples of com.hp.hpl.jena.tdb.base.block.Block

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    @Test public void track_01()
    {
        BlockMgr mgr = BlockMgrFactory.createMem("BPTRecord", 4) ;
        mgr = BlockMgrFactory.tracker(mgr) ;
        mgr.beginUpdate() ;
        Block block = mgr.allocate(4) ;
        ByteBuffer bb = block.getByteBuffer() ;
        bb.putInt(0,1234) ;
        mgr.write(block) ;
        mgr.release(block) ;
        // -----
        Block block2 = mgr.getRead(block.getId()) ;
        ByteBuffer bb2 = block2.getByteBuffer() ;
        assertArrayEquals(bb.array(), bb2.array()) ;
        mgr.release(block2) ;
        mgr.endUpdate() ;
    }
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    }
   
    static void write(BlockMgr mgr, int value)
    {
        mgr.beginUpdate() ;
        Block block = mgr.allocate(4) ;
        ByteBuffer bb = block.getByteBuffer() ;
        bb.putInt(0,value) ;
        mgr.write(block) ;
        mgr.release(block) ;
        mgr.endUpdate() ;
    }
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        write(mgr, 5678) ;

        mgr.beginRead() ;
        mgr.beginRead() ;

        Block b0 = mgr.getRead(0) ;
        Block b1 = mgr.getRead(1) ;
       
        mgr.release(b1) ;
        mgr.release(b0) ;
       
        mgr.endRead() ;
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        BlockMgr mgr = setup() ;
        write(mgr, 1234) ;
        write(mgr, 5678) ;

        mgr.beginRead() ;
        Block b0 = mgr.getWrite(0) ;
        mgr.endRead() ;
    }
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    public void track_04()
    {
        BlockMgr mgr = setup() ;
        write(mgr, 1234) ;
        mgr.beginRead() ;
        Block b0 = mgr.getRead(0) ;
        mgr.promote(b0) ;
        mgr.endRead() ;
    }
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            throw new TDBTransactionException("Feaild to read block checksum.") ;
        int checksum = Bytes.getInt(crcTrailer.array()) ;
        if ( checksum != (int)adler.getValue() )
          throw new TDBTransactionException("Checksum error reading from the Journal.") ;

        Block block = new Block(blockId, bb) ;
        return new JournalEntry(type, fileRef, block) ;
    }
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        if ( blkSize > 0 && blkSize != this.blockSize )
            throw new FileException("Fixed blocksize only: request= "+blkSize+" / fixed size="+this.blockSize) ;
       
        int x = blocks.size() ;
        ByteBuffer bb = ByteBuffer.allocate(blkSize) ;
        Block block = new Block(x, bb) ;
        blocks.add(block) ;
        return block;
    }
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    @Override
    public Block read(long id)
    {
        check(id) ;
        Block blk = blocks.get((int)id) ;
        if ( safeModeThisMgr )
            return blk.replicate() ;
        else
            return blk ;
    }
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//        this(JournalEntryType.Block, fileRef, null, block) ;
//    }

    JournalEntry(JournalEntryType type, FileRef fileRef, ByteBuffer bytes)
    {
        this(type, fileRef, new Block(0, bytes)) ;
    }
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            // It's manipulated in-place so no conversion needed,
            // Just the count needs to be fixed up.
//            ByteBuffer bb = node.getBackingByteBuffer() ;
//            BlockType bType = (node.isLeaf ? BPTREE_LEAF : BPTREE_BRANCH ) ;

            Block block = node.getBackingBlock() ;
            BlockType bType = (node.isLeaf ? BPTREE_LEAF : BPTREE_BRANCH ) ;

            int c = encodeCount(bType, node.getCount()) ;
            block.getByteBuffer().putInt(0, c) ;
            return block ;
        }
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Related Classes of com.hp.hpl.jena.tdb.base.block.Block

  • com.hp.hpl.jena.tdb.base.block.TestBlockMgrTracked
  • com.hp.hpl.jena.tdb.base.file.AbstractTestBlockAccessFixedSize
  • com.hp.hpl.jena.tdb.base.file.AbstractTestBlockAccessVarSize
  • com.hp.hpl.jena.tdb.base.file.BlockAccessByteArray
  • com.hp.hpl.jena.tdb.base.file.BlockAccessDirect
  • com.hp.hpl.jena.tdb.base.file.BlockAccessMapped
  • com.hp.hpl.jena.tdb.base.file.BlockAccessMem
  • com.hp.hpl.jena.tdb.base.objectfile.AbstractTestObjectFile
  • com.hp.hpl.jena.tdb.base.objectfile.ObjectFileLogger
  • com.hp.hpl.jena.tdb.base.objectfile.ObjectFileMem
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