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127 lines
4.1 KiB
Java
127 lines
4.1 KiB
Java
/*-
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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.basic;
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import com.sleepycat.bind.EntryBinding;
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import com.sleepycat.bind.serial.ClassCatalog;
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import com.sleepycat.bind.serial.SerialBinding;
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import com.sleepycat.collections.StoredEntrySet;
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import com.sleepycat.collections.StoredMap;
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/**
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* SampleViews defines the data bindings and collection views for the sample
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* database.
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*
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* @author Mark Hayes
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*/
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public class SampleViews {
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private StoredMap partMap;
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private StoredMap supplierMap;
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private StoredMap shipmentMap;
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/**
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* Create the data bindings and collection views.
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*/
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public SampleViews(SampleDatabase db) {
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// In this sample, the stored key and data entries are used directly
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// rather than mapping them to separate objects. Therefore, no binding
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// classes are defined here and the SerialBinding class is used.
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//
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ClassCatalog catalog = db.getClassCatalog();
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EntryBinding partKeyBinding =
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new SerialBinding(catalog, PartKey.class);
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EntryBinding partDataBinding =
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new SerialBinding(catalog, PartData.class);
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EntryBinding supplierKeyBinding =
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new SerialBinding(catalog, SupplierKey.class);
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EntryBinding supplierDataBinding =
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new SerialBinding(catalog, SupplierData.class);
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EntryBinding shipmentKeyBinding =
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new SerialBinding(catalog, ShipmentKey.class);
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EntryBinding shipmentDataBinding =
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new SerialBinding(catalog, ShipmentData.class);
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// Create map views for all stores and indices.
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// StoredSortedMap is not used since the stores and indices are
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// ordered by serialized key objects, which do not provide a very
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// useful ordering.
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//
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partMap =
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new StoredMap(db.getPartDatabase(),
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partKeyBinding, partDataBinding, true);
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supplierMap =
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new StoredMap(db.getSupplierDatabase(),
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supplierKeyBinding, supplierDataBinding, true);
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shipmentMap =
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new StoredMap(db.getShipmentDatabase(),
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shipmentKeyBinding, shipmentDataBinding, true);
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}
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// The views returned below can be accessed using the java.util.Map or
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// java.util.Set interfaces, or using the StoredMap and StoredEntrySet
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// classes, which provide additional methods. The entry sets could be
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// obtained directly from the Map.entrySet() method, but convenience
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// methods are provided here to return them in order to avoid down-casting
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// elsewhere.
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/**
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* Return a map view of the part storage container.
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*/
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public final StoredMap getPartMap() {
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return partMap;
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}
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/**
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* Return a map view of the supplier storage container.
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*/
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public final StoredMap getSupplierMap() {
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return supplierMap;
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}
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/**
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* Return a map view of the shipment storage container.
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*/
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public final StoredMap getShipmentMap() {
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return shipmentMap;
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}
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/**
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* Return an entry set view of the part storage container.
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*/
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public final StoredEntrySet getPartEntrySet() {
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return (StoredEntrySet) partMap.entrySet();
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}
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/**
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* Return an entry set view of the supplier storage container.
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*/
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public final StoredEntrySet getSupplierEntrySet() {
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return (StoredEntrySet) supplierMap.entrySet();
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}
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/**
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* Return an entry set view of the shipment storage container.
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*/
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public final StoredEntrySet getShipmentEntrySet() {
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return (StoredEntrySet) shipmentMap.entrySet();
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}
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}
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