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authorZhang Qiang <qiang.z.zhang@intel.com>2012-05-29 12:22:00 +0800
committerZhang Qiang <qiang.z.zhang@intel.com>2012-05-29 12:22:00 +0800
commit02f0634ac29e19c68279e5544cac963e7f1203b8 (patch)
treeb983472f94ef063cedf866d8ecfb55939171779d /examples_java/src/collections/ship/index/SampleViews.java
parente776056ea09ba0b6d9505ced6913c9190a12d632 (diff)
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+/*-
+ * See the file LICENSE for redistribution information.
+ *
+ * Copyright (c) 2002-2009 Oracle. All rights reserved.
+ *
+ * $Id$
+ */
+
+package collections.ship.index;
+
+import com.sleepycat.bind.EntryBinding;
+import com.sleepycat.bind.serial.ClassCatalog;
+import com.sleepycat.bind.serial.SerialBinding;
+import com.sleepycat.collections.StoredEntrySet;
+import com.sleepycat.collections.StoredSortedMap;
+
+/**
+ * SampleViews defines the data bindings and collection views for the sample
+ * database.
+ *
+ * @author Mark Hayes
+ */
+public class SampleViews {
+
+ private StoredSortedMap partMap;
+ private StoredSortedMap supplierMap;
+ private StoredSortedMap shipmentMap;
+ private StoredSortedMap shipmentByPartMap;
+ private StoredSortedMap shipmentBySupplierMap;
+ private StoredSortedMap supplierByCityMap;
+
+ /**
+ * Create the data bindings and collection views.
+ */
+ public SampleViews(SampleDatabase db) {
+
+ // Create the data bindings.
+ // In this sample, the stored key and data entries are used directly
+ // rather than mapping them to separate objects. Therefore, no binding
+ // classes are defined here and the SerialBinding class is used.
+ //
+ ClassCatalog catalog = db.getClassCatalog();
+ EntryBinding partKeyBinding =
+ new SerialBinding(catalog, PartKey.class);
+ EntryBinding partDataBinding =
+ new SerialBinding(catalog, PartData.class);
+ EntryBinding supplierKeyBinding =
+ new SerialBinding(catalog, SupplierKey.class);
+ EntryBinding supplierDataBinding =
+ new SerialBinding(catalog, SupplierData.class);
+ EntryBinding shipmentKeyBinding =
+ new SerialBinding(catalog, ShipmentKey.class);
+ EntryBinding shipmentDataBinding =
+ new SerialBinding(catalog, ShipmentData.class);
+ EntryBinding cityKeyBinding =
+ new SerialBinding(catalog, String.class);
+
+ // Create map views for all stores and indices.
+ // StoredSortedMap is not used since the stores and indices are
+ // ordered by serialized key objects, which do not provide a very
+ // useful ordering.
+ //
+ partMap =
+ new StoredSortedMap(db.getPartDatabase(),
+ partKeyBinding, partDataBinding, true);
+ supplierMap =
+ new StoredSortedMap(db.getSupplierDatabase(),
+ supplierKeyBinding, supplierDataBinding, true);
+ shipmentMap =
+ new StoredSortedMap(db.getShipmentDatabase(),
+ shipmentKeyBinding, shipmentDataBinding, true);
+ shipmentByPartMap =
+ new StoredSortedMap(db.getShipmentByPartDatabase(),
+ partKeyBinding, shipmentDataBinding, true);
+ shipmentBySupplierMap =
+ new StoredSortedMap(db.getShipmentBySupplierDatabase(),
+ supplierKeyBinding, shipmentDataBinding, true);
+ supplierByCityMap =
+ new StoredSortedMap(db.getSupplierByCityDatabase(),
+ cityKeyBinding, supplierDataBinding, true);
+ }
+
+ // The views returned below can be accessed using the java.util.Map or
+ // java.util.Set interfaces, or using the StoredSortedMap and
+ // StoredEntrySet classes, which provide additional methods. The entry
+ // sets could be obtained directly from the Map.entrySet() method, but
+ // convenience methods are provided here to return them in order to avoid
+ // down-casting elsewhere.
+
+ /**
+ * Return a map view of the part storage container.
+ */
+ public final StoredSortedMap getPartMap() {
+
+ return partMap;
+ }
+
+ /**
+ * Return a map view of the supplier storage container.
+ */
+ public final StoredSortedMap getSupplierMap() {
+
+ return supplierMap;
+ }
+
+ /**
+ * Return a map view of the shipment storage container.
+ */
+ public final StoredSortedMap getShipmentMap() {
+
+ return shipmentMap;
+ }
+
+ /**
+ * Return an entry set view of the part storage container.
+ */
+ public final StoredEntrySet getPartEntrySet() {
+
+ return (StoredEntrySet) partMap.entrySet();
+ }
+
+ /**
+ * Return an entry set view of the supplier storage container.
+ */
+ public final StoredEntrySet getSupplierEntrySet() {
+
+ return (StoredEntrySet) supplierMap.entrySet();
+ }
+
+ /**
+ * Return an entry set view of the shipment storage container.
+ */
+ public final StoredEntrySet getShipmentEntrySet() {
+
+ return (StoredEntrySet) shipmentMap.entrySet();
+ }
+
+ /**
+ * Return a map view of the shipment-by-part index.
+ */
+ public StoredSortedMap getShipmentByPartMap() {
+
+ return shipmentByPartMap;
+ }
+
+ /**
+ * Return a map view of the shipment-by-supplier index.
+ */
+ public StoredSortedMap getShipmentBySupplierMap() {
+
+ return shipmentBySupplierMap;
+ }
+
+ /**
+ * Return a map view of the supplier-by-city index.
+ */
+ public final StoredSortedMap getSupplierByCityMap() {
+
+ return supplierByCityMap;
+ }
+}