Package org.eclipse.persistence.queries

Examples of org.eclipse.persistence.queries.ReadObjectQuery

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            }

            // PROCESS TRANSFORMATION MAPPINGS
            List transformationMappings = treeObjectBuilder.getTransformationMappings();
            if (null != transformationMappings) {
                ReadObjectQuery query = new ReadObjectQuery();
                query.setSession(session);
                for (int x = 0, transformationMappingsSize = transformationMappings.size(); x < transformationMappingsSize; x++) {
                    AbstractTransformationMapping transformationMapping = (AbstractTransformationMapping)transformationMappings.get(x);
                    transformationMapping.readFromRowIntoObject(transformationRecord, null, currentObject, query, session);
                }
            }
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                int cacheUsage = ((Integer)valueToApply).intValue();
                ((ObjectLevelReadQuery)query).setCacheUsage(cacheUsage);
                if (cacheUsage == ObjectLevelReadQuery.CheckCacheByExactPrimaryKey
                        || cacheUsage == ObjectLevelReadQuery.CheckCacheByPrimaryKey
                        || cacheUsage == ObjectLevelReadQuery.CheckCacheThenDatabase) {
                    ReadObjectQuery newQuery = new ReadObjectQuery();
                    newQuery.copyFromQuery(query);
                    return newQuery;
                }
            } else if (query.isModifyAllQuery()) {
                int cacheUsage = ((Integer)valueToApply).intValue();
                ((ModifyAllQuery)query).setCacheUsage(cacheUsage);
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            // Allows an query type, or a custom query class.
            DatabaseQuery newQuery = query;
            if (valueToApply.equals(QueryType.ReadAll)) {
                newQuery = new ReadAllQuery();
            } else if (valueToApply.equals(QueryType.ReadObject)) {
                newQuery = new ReadObjectQuery();
            } else if (valueToApply.equals(QueryType.Report)) {
                newQuery = new ReportQuery();
                if (query.isObjectLevelReadQuery()) {
                    ((ReportQuery)newQuery).addAttribute("root", ((ReportQuery)newQuery).getExpressionBuilder());
                }
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                        && (!readQuery.hasHierarchicalExpressions())) {
                    databaseQuery.checkDescriptor((AbstractSession)session);
                    Expression selectionCriteria = databaseQuery.getSelectionCriteria();
                    if ((selectionCriteria) != null
                            && databaseQuery.getDescriptor().getObjectBuilder().isPrimaryKeyExpression(true, selectionCriteria, (AbstractSession)session)) {
                        ReadObjectQuery newQuery = new ReadObjectQuery();
                        newQuery.copyFromQuery(databaseQuery);
                        databaseQuery = newQuery;
                    }
                }
            }
           
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            if (elementDescriptor.hasCMPPolicy()){
                pk = elementDescriptor.getCMPPolicy().createPrimaryKeyFromId(pks[index], session);
            }else{
                pk = pks[index];
            }
            ReadObjectQuery query = new ReadObjectQuery();
            query.setReferenceClass(elementDescriptor.getJavaClass());
            query.setSelectionId(pk);
            query.setIsExecutionClone(true);
            Object element = session.executeQuery(query);
            addInto(key, element, result, session);
        }
        return result;
    }
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            if (elementDescriptor.hasCMPPolicy()){
                pk = elementDescriptor.getCMPPolicy().createPrimaryKeyFromId(pks[index], session);
            }else{
                pk = pks[index];
            }
            ReadObjectQuery query = new ReadObjectQuery();
            query.setReferenceClass(elementDescriptor.getJavaClass());
            query.setSelectionId(pk);
            query.setIsExecutionClone(true);
            addInto(key, session.executeQuery(query), result, session);
        }
        return result;
    }
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     */
    public void initialize(DescriptorQueryManager queryManager, AbstractSession session) {
        //PERF: set read-object query to cache generated SQL.
        if (!queryManager.hasReadObjectQuery()) {
            // Prepare static read object query always.
            ReadObjectQuery readObjectQuery = new ReadObjectQuery();
            readObjectQuery.setSelectionCriteria(getObjectBuilder().getPrimaryKeyExpression());
            queryManager.setReadObjectQuery(readObjectQuery);
        }
        queryManager.getReadObjectQuery().setName("readObject");

        if (!queryManager.hasInsertQuery()) {
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        if (type == null) {
            throw new IllegalArgumentException("DynamicHelper.createQuery: Dynamic type not found: " + typeName);
        }

        return new ReadObjectQuery(type.getJavaClass());
    }
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     */
    @Override
    public Object invoke(XRServiceAdapter xrService, Invocation invocation) {
      XRDynamicEntity instance = (XRDynamicEntity)invocation.getParameters().toArray()[0];
        UnitOfWork uow = xrService.getORSession().acquireUnitOfWork();
        ReadObjectQuery query = new ReadObjectQuery();
        query.setSelectionObject(instance);
        query.setIsExecutionClone(true);
        FetchGroup simpleFetchGroup = new FetchGroup();
        for (String propertyName : instance.fetchPropertiesManager().getPropertyNames()) {
            if (instance.isSet(propertyName)) {
                simpleFetchGroup.addAttribute(propertyName);
            }
        }
        query.setFetchGroup(simpleFetchGroup);
        // read the existing object into the uow
        uow.executeQuery(query);
        // merge in only properties that are set
        uow.mergeClone(instance);
        uow.commit();
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            }

            // PROCESS TRANSFORMATION MAPPINGS
            List transformationMappings = treeObjectBuilder.getTransformationMappings();
            if (null != transformationMappings) {
                ReadObjectQuery query = new ReadObjectQuery();
                query.setSession(session);
                for (int x = 0, transformationMappingsSize = transformationMappings.size(); x < transformationMappingsSize; x++) {
                    AbstractTransformationMapping transformationMapping = (AbstractTransformationMapping)transformationMappings.get(x);
                    transformationMapping.readFromRowIntoObject(transformationRecord, null, currentObject, null, query, session, true);
                }
            }
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Related Classes of org.eclipse.persistence.queries.ReadObjectQuery

  • org.eclipse.persistence.descriptors.ClassDescriptor
  • org.eclipse.persistence.descriptors.DescriptorQueryManager
  • org.eclipse.persistence.descriptors.InterfacePolicy
  • org.eclipse.persistence.dynamic.DynamicHelper
  • org.eclipse.persistence.internal.descriptors.CascadeLockingPolicy
  • org.eclipse.persistence.internal.dynamic.DynamicEntityImpl
  • org.eclipse.persistence.internal.identitymaps.CacheId
  • org.eclipse.persistence.internal.jpa.EJBQueryImpl
  • org.eclipse.persistence.internal.jpa.EntityManagerImpl
  • org.eclipse.persistence.internal.jpa.QueryHintsHandler$CacheUsageHint
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