Examples of org.jpox.store.mapped.expression.MapExpression

org.jpox.store.mapped.expression.MapExpression

An expression that represents some Map field in a query candidate class, or a Map field in an object linked from the candidate class by navigation.

When navigated through using containsKey(expr) the keys of the Map are relationally joined onto the query statement. When navigated through using containsValue(expr) the values of the Map are relationally joined onto the query statement. These 2 methods are required for JDO 2.0, whilst the isEmpty() and contains() are JDO 1.0.1. containsEntry() is a JPOX extension.

@version $Revision: 1.33 $

    {
        if (containerIsStoredInSingleColumn())
        {
            throw new JPOXUserException(LOCALISER.msg("041025", fmd.getFullFieldName())).setFatal();
        }
        return new MapExpression(qs, datastoreContainer.getIDMapping(), te, (MapStore) storeMgr.getBackingStoreForField(qs.getClassLoaderResolver(), fmd, null), fieldName);
    }

Examples of org.jpox.store.mapped.expression.MapExpression

Related Classes of org.jpox.store.mapped.expression.MapExpression