Examples of MappedStoreManager

org.datanucleus.store.mapped.MappedStoreManager

Manager for a datastore that has a schema and maps classes to associated objects in the datastore. Datastores such as RDBMS will extend this type of StoreManager.

In a "mapped" datastore, a class is associated with a DatastoreClass. Similarly a field of a class is associated with a DatastoreField. Where a relation is stored separately this is associated with a DatastoreContainerObject. In an RDBMS datastore this will be

class <-> table
field <-> column
relation <-> join-table / foreign-key

This type of StoreManager allows creation/validation of the schema. A schema is split into "tables", "columns", "constraints" currently. The PMF/EMF allows specification of a set of properties that will apply to this type of datastore.

org.jpox.store.mapped.MappedStoreManager

Manager for a datastore that has a schema and maps classes to associated objects in the datastore. Datastores such as RDBMS will extend this type of StoreManager.

class <-> table
field <-> column
relation <-> join-table / foreign-key

@version $Revision: 1.11 $

     * @param id Identifier of the named parameter, starts with "?" followed by the number
     * @return Expression representing the numbered param
     */
    protected ScalarExpression compileNumberedImplicitParameter(String id)
    {
        MappedStoreManager srm = (MappedStoreManager)query.getObjectManager().getStoreManager();
        ClassLoaderResolver clr = query.getObjectManager().getClassLoaderResolver();
        id = id.substring(1); // Omit the "?"
        Integer position = new Integer(id);
        if (processedParameters == null)
        {
            processedParameters = new HashSet();
        }
        processedParameters.add(position); // Register as processed for this query


        if (parameters != null && parameters.size() > 0)
        {
            if (parameters.containsKey(position))
            {
                // Implicit parameter already found, so reuse the value
                Object paramValue = parameters.get(position);
                if (paramValue != null)
                {
                    JavaTypeMapping m = srm.getDatastoreAdapter().getMapping(paramValue.getClass(), srm, clr);
                    ScalarExpression paramExpr = m.newLiteral(qs, paramValue);
                    paramExpr.setParameterName(id);
                    paramExpr.checkForTypeAssignability();
                    return paramExpr;
                }

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Examples of MappedStoreManager

Examples of org.jpox.store.mapped.MappedStoreManager