Examples of com.db4o.ext.MemoryFile

com.db4o.ext.MemoryFile
carries in-memory data for db4o in-memory operation.

In-memory ObjectContainers are useful for maximum performance on small databases, for swapping objects or for storing db4o format data to other media or other databases.

Be aware of the danger of running into OutOfMemory problems or complete loss of all data, in case of hardware or JVM failures.

@see ExtDb4o#openMemoryFile

        yapBytes.useSlot(id[0], 0, bytes.length);
        return yapBytes;
    }


    public byte[] marshall(Object obj, int[] id) {
        MemoryFile memoryFile = new MemoryFile();
        memoryFile.setInitialSize(223);
        memoryFile.setIncrementSizeBy(300);
        produceYapClass(reflector().forObject(obj));
        TransportObjectContainer carrier = new TransportObjectContainer(config(),_this, memoryFile);
        carrier.i_showInternalClasses = i_showInternalClasses;
        carrier.set(obj);
        id[0] = (int) carrier.getID(obj);
        carrier.close();
        return memoryFile.getBytes();
    }

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    public Object unmarshall(StatefulBuffer yapBytes) {
        return unmarshall(yapBytes._buffer, yapBytes.getID());
    }


    public Object unmarshall(byte[] bytes, int id) {
        MemoryFile memoryFile = new MemoryFile(bytes);
        TransportObjectContainer carrier = new TransportObjectContainer(configure(),_this, memoryFile);
        Object obj = carrier.getByID(id);
        carrier.activate(obj, Integer.MAX_VALUE);
        carrier.close();
        return obj;

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Related Classes of com.db4o.ext.MemoryFile

com.db4o.internal.PartialObjectContainer

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