Examples of com.sleepycat.bind.EntityBinding

com.sleepycat.bind.EntityBinding
A binding between a key-value entry pair and an entity object.
WARNING: Binding instances are typically shared by multiple threads and binding methods are called without any special synchronization. Therefore, bindings must be thread safe. In general no shared state should be used and any caching of computed values must be done with proper synchronization.
@author Mark Hayes

                DatabaseEntry key = new DatabaseEntry();
                DatabaseEntry data = new DatabaseEntry();
                OperationStatus status =
                    joinCursor.getNext(key, data, lockMode);
                if (status == OperationStatus.SUCCESS) {
                    EntityBinding binding = primary.getEntityBinding();
                    return (V) binding.entryToObject(key, data);
                }
            }
            return null;
        }

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        PrimaryIndex<Object, Object> index = getPrimaryIndex
            (Object.class, keyClassName, entityClass, entityClassName);
        Database db = index.getDatabase();


        EntityBinding binding = index.getEntityBinding();
        DatabaseEntry key = new DatabaseEntry();
        DatabaseEntry data = new DatabaseEntry();


        CursorConfig cursorConfig = null;
        Transaction txn = null;

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    // also tests TupleTupleBinding since TupleTupleMarshalledBinding extends
    // it
    public void testTupleTupleMarshalledBinding() {


        EntityBinding binding =
            new TupleTupleMarshalledBinding(MarshalledObject.class);


        MarshalledObject val = new MarshalledObject("abc", "primary",
                                                    "index1", "index2");
        binding.objectToData(val, buffer);
        assertEquals(val.expectedDataLength(), buffer.getSize());
        binding.objectToKey(val, keyBuffer);
        assertEquals(val.expectedKeyLength(), keyBuffer.getSize());


        Object result = binding.entryToObject(keyBuffer, buffer);
        assertTrue(result instanceof MarshalledObject);
        val = (MarshalledObject) result;
        assertEquals("abc", val.getData());
        assertEquals("primary", val.getPrimaryKey());
        assertEquals("index1", val.getIndexKey1());

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    public void testSerialSerialBinding() {


        SerialBinding keyBinding = new SerialBinding(catalog, String.class);
        SerialBinding valueBinding = new SerialBinding(catalog, String.class);
        EntityBinding binding = new MySerialSerialBinding(keyBinding,
                                                          valueBinding);


        String val = "key#value?indexKey";
        binding.objectToData(val, buffer);
        assertTrue(buffer.getSize() > 0);
        binding.objectToKey(val, keyBuffer);
        assertTrue(keyBuffer.getSize() > 0);


        Object result = binding.entryToObject(keyBuffer, buffer);
        assertEquals(val, result);
    }

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    // it
    public void testTupleSerialMarshalledBinding() {


        SerialBinding valueBinding = new SerialBinding(catalog,
                                                    MarshalledObject.class);
        EntityBinding binding =
            new TupleSerialMarshalledBinding(valueBinding);


        MarshalledObject val = new MarshalledObject("abc", "primary",
                                                    "index1", "index2");
        binding.objectToData(val, buffer);
        assertTrue(buffer.getSize() > 0);
        binding.objectToKey(val, keyBuffer);
        assertEquals(val.expectedKeyLength(), keyBuffer.getSize());


        Object result = binding.entryToObject(keyBuffer, buffer);
        assertTrue(result instanceof MarshalledObject);
        val = (MarshalledObject) result;
        assertEquals("abc", val.getData());
        assertEquals("primary", val.getPrimaryKey());
        assertEquals("index1", val.getIndexKey1());

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        // EntryBinding classes to bind the stored tuple entry to a key Object.
        //
        ClassCatalog catalog = db.getClassCatalog();
        EntryBinding partKeyBinding =
            new PartKeyBinding();
        EntityBinding partDataBinding =
            new PartBinding(catalog, Part.class);
        EntryBinding supplierKeyBinding =
            new SupplierKeyBinding();
        EntityBinding supplierDataBinding =
            new SupplierBinding(catalog, Supplier.class);
        EntryBinding shipmentKeyBinding =
            new ShipmentKeyBinding();
        EntityBinding shipmentDataBinding =
            new ShipmentBinding(catalog, Shipment.class);
        EntryBinding cityKeyBinding =
            TupleBinding.getPrimitiveBinding(String.class);


        // Create map views for all stores and indices.

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        // the stored tuple entry to a key Object.
        //
        ClassCatalog catalog = db.getClassCatalog();
        EntryBinding partKeyBinding =
            new PartKeyBinding();
        EntityBinding partDataBinding =
            new PartBinding(catalog, PartData.class);
        EntryBinding supplierKeyBinding =
            new SupplierKeyBinding();
        EntityBinding supplierDataBinding =
            new SupplierBinding(catalog, SupplierData.class);
        EntryBinding shipmentKeyBinding =
            new ShipmentKeyBinding();
        EntityBinding shipmentDataBinding =
            new ShipmentBinding(catalog, ShipmentData.class);
        EntryBinding cityKeyBinding =
            TupleBinding.getPrimitiveBinding(String.class);


        // Create map views for all stores and indices.

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        // EntryBinding classes to bind the stored tuple entry to a key Object.
        //
        ClassCatalog catalog = db.getClassCatalog();
        EntryBinding partKeyBinding =
            new MarshalledKeyBinding(PartKey.class);
        EntityBinding partDataBinding =
            new MarshalledEntityBinding(catalog, Part.class);
        EntryBinding supplierKeyBinding =
            new MarshalledKeyBinding(SupplierKey.class);
        EntityBinding supplierDataBinding =
            new MarshalledEntityBinding(catalog, Supplier.class);
        EntryBinding shipmentKeyBinding =
            new MarshalledKeyBinding(ShipmentKey.class);
        EntityBinding shipmentDataBinding =
            new MarshalledEntityBinding(catalog, Shipment.class);
        EntryBinding cityKeyBinding =
            TupleBinding.getPrimitiveBinding(String.class);


        // Create map views for all stores and indices.

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        // special binding class is needed.
        //
        ClassCatalog catalog = db.getClassCatalog();
        SerialBinding partKeyBinding =
            new SerialBinding(catalog, PartKey.class);
        EntityBinding partDataBinding =
            new PartBinding(catalog, PartKey.class, PartData.class);
        SerialBinding supplierKeyBinding =
            new SerialBinding(catalog, SupplierKey.class);
        EntityBinding supplierDataBinding =
            new SupplierBinding(catalog, SupplierKey.class,
                                SupplierData.class);
        SerialBinding shipmentKeyBinding =
            new SerialBinding(catalog, ShipmentKey.class);
        EntityBinding shipmentDataBinding =
            new ShipmentBinding(catalog, ShipmentKey.class,
                                ShipmentData.class);
        SerialBinding cityKeyBinding =
            new SerialBinding(catalog, String.class);

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        // EntryBinding classes to bind the stored tuple entry to a key Object.
        //
        ClassCatalog catalog = db.getClassCatalog();
        EntryBinding partKeyBinding =
            new MarshalledKeyBinding(PartKey.class);
        EntityBinding partDataBinding =
            new MarshalledEntityBinding(catalog, Part.class);
        EntryBinding supplierKeyBinding =
            new MarshalledKeyBinding(SupplierKey.class);
        EntityBinding supplierDataBinding =
            new MarshalledEntityBinding(catalog, Supplier.class);
        EntryBinding shipmentKeyBinding =
            new MarshalledKeyBinding(ShipmentKey.class);
        EntityBinding shipmentDataBinding =
            new MarshalledEntityBinding(catalog, Shipment.class);
        EntryBinding cityKeyBinding =
            TupleBinding.getPrimitiveBinding(String.class);


        // Create map views for all stores and indices.

View Full Code Here

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Related Classes of com.sleepycat.bind.EntityBinding

collections.ship.entity.SampleViews

collections.ship.marshal.SampleViews

collections.ship.sentity.SampleViews

collections.ship.tuple.SampleViews

com.sleepycat.bind.serial.test.SerialBindingTest

com.sleepycat.bind.tuple.test.TupleBindingTest

com.sleepycat.persist.EntityJoin$JoinForwardCursor

com.sleepycat.persist.impl.Store

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