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48 lines
1.6 KiB
Java
48 lines
1.6 KiB
Java
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/*-
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* Copyright (C) 2002, 2017, Oracle and/or its affiliates. All rights reserved.
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*
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* This file was distributed by Oracle as part of a version of Oracle Berkeley
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* DB Java Edition made available at:
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*
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* http://www.oracle.com/technetwork/database/database-technologies/berkeleydb/downloads/index.html
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*
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* Please see the LICENSE file included in the top-level directory of the
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* appropriate version of Oracle Berkeley DB Java Edition for a copy of the
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* license and additional information.
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*/
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package collections.ship.marshal;
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import com.sleepycat.bind.tuple.TupleInput;
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import com.sleepycat.bind.tuple.TupleOutput;
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/**
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* MarshalledEntity is implemented by entity (combined key/data) objects and
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* called by {@link SampleViews.MarshalledEntityBinding}. In this sample,
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* MarshalledEntity is implemented by {@link Part}, {@link Supplier}, and
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* {@link Shipment}. This interface is package-protected rather than public
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* to hide the marshalling interface from other users of the data objects.
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* Note that a MarshalledEntity must also have a no arguments constructor so
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* that it can be instantiated by the binding.
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*
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* @author Mark Hayes
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*/
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interface MarshalledEntity {
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/**
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* Extracts the entity's primary key and writes it to the key output.
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*/
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void marshalPrimaryKey(TupleOutput keyOutput);
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/**
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* Completes construction of the entity by setting its primary key from the
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* stored primary key.
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*/
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void unmarshalPrimaryKey(TupleInput keyInput);
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/**
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* Extracts the entity's index key and writes it to the key output.
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*/
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boolean marshalSecondaryKey(String keyName, TupleOutput keyOutput);
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}
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