Subversion Repositories SmartDukaan

package in.shop2020.storage.bdb;

import in.shop2020.metamodel.core.Entity;

import in.shop2020.metamodel.core.EntityState;

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.StoredMap;

public class ContentViews {

    private StoredMap entityMap;

    private StoredMap entityMetadataMap;

    private StoredMap dataObjectMap;

    private StoredMap definitionMap;

    private StoredMap entityByCategoryMap;

    /**

     * Create the data bindings and collection views.

     */

    public ContentViews(ContentDatabase db) {

        // 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 entityKeyBinding = new SerialBinding(catalog, Long.class);

        EntryBinding entityDataBinding =  new SerialBinding(catalog, Entity.class);

        EntryBinding entityMetadataKeyBinding = new SerialBinding(catalog, Long.class);

        EntryBinding entityMetadataDataBinding =  new SerialBinding(catalog, EntityState.class);

        EntryBinding commonKeyBinding =   new SerialBinding(catalog, String.class);

        EntryBinding commonDataBinding =   new SerialBinding(catalog, Object.class);

        EntryBinding definitionKeyBinding =   new SerialBinding(catalog, String.class);

        EntryBinding definitionDataBinding =   new SerialBinding(catalog, Object.class);

        EntryBinding entityByCategoryKeyBinding =   new SerialBinding(catalog, Long.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.

        //

        entityMap = new StoredMap(db.getEntityDatabase(),entityKeyBinding, entityDataBinding, true);

        entityMetadataMap = new StoredMap(db.getEntityMetadataDatabase(),entityMetadataKeyBinding, entityMetadataDataBinding, true);

        dataObjectMap = new StoredMap(db.getDataObjectDatabase(), commonKeyBinding, commonDataBinding, true);

        definitionMap = new StoredMap(db.getDefinitionDatabase(), definitionKeyBinding, definitionDataBinding, true);

        entityByCategoryMap = new StoredMap(db.getCategoryByCategoryDatabase(), entityByCategoryKeyBinding, entityDataBinding, true);

    }

    // The views returned below can be accessed using the java.util.Map or

    // java.util.Set interfaces, or using the StoredMap 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 entity storage container.

     */

    public final StoredMap getEntityMap() {

        return entityMap;

    }

    /**

     * 

     * @return a map view of the entities by category storage container.

     */

    public final StoredMap getEntityByCategoryMap() {

        return entityByCategoryMap;

    }

    /**

     * Return a map view of the entity metadata storage container.

     */

    public final StoredMap getEntityMetadataMap() {

        return entityMetadataMap;

    }

    /**

     * Return a map view of the definition storage container.

     */

    public final StoredMap getDefinitionMap() {

        return definitionMap;

    }

    /**

     * Return a map view of the object storage container.

     */

    public final StoredMap getDataObjectMap() {

        return dataObjectMap;

    }

    /**

     * Return an entry set view of the entity storage container.

     */

    public final StoredEntrySet getEntityEntrySet() {

        return (StoredEntrySet) entityMap.entrySet();

    }

    /**

     * Return an entry set view of the entity metadata storage container.

     */

    public final StoredEntrySet getEntityMetaDataEntrySet() {

        return (StoredEntrySet) entityMetadataMap.entrySet();

    }

    /**

     * Return an entry set view of the definitions storage container.

     */

    public final StoredEntrySet getDefinitionEntrySet() {

        return (StoredEntrySet) definitionMap.entrySet();

    }

    /**

     * Return an entry set view of the object storage container.

     */

    public final StoredEntrySet getDataObjectEntrySet() {

        return (StoredEntrySet) dataObjectMap.entrySet();

    }

}