Package org.eclipse.persistence.queries

Examples of org.eclipse.persistence.queries.ReadObjectQuery


                        if (!xrService.descriptorsByQName.containsKey(type)) {
                            databaseQueryToInitialize = new ValueReadQuery();
                        }
                        else {
                            // read object query for the class mapped to the type
                            databaseQueryToInitialize = new ReadObjectQuery(xrService.getTypeClass(type));
                        }
                    }
                    else {
                        // special case - no out args for SP: the return
                        // will be a single int
                        // rowcount
                        databaseQueryToInitialize = new DataModifyQuery();
                    }
                }
                else {
                    if (!xrService.descriptorsByQName.containsKey(type)) {
                      if (type.equals(SXF_QNAME)) {
                        databaseQueryToInitialize = new DataReadQuery();
                      }
                      else {
                        databaseQueryToInitialize = new ValueReadQuery();
                      }
                    }
                    else {
                        // read object query for the class mapped to the type
                        databaseQueryToInitialize = new ReadObjectQuery(xrService.getTypeClass(type));
                    }
                }
            }
        }
        else {
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     *
     * @param attribute
     */
    protected void _persistence_checkFetched(String attribute) {
        if (!_persistence_isAttributeFetched(attribute)) {
            ReadObjectQuery query = new ReadObjectQuery(this);
            query.setShouldUseDefaultFetchGroup(false);
            Object result = _persistence_getSession().executeQuery(query);
            if (result == null) {
                Object[] args = { query.getSelectionKey() };
                String message = ExceptionLocalization.buildMessage("no_entities_retrieved_for_get_reference", args);
                throw DynamicException.entityNotFoundException(message);
            }
        }
    }
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     * @see  {@link Operation}
     */
    @SuppressWarnings("unchecked")
    @Override
    public Object invoke(XRServiceAdapter xrService, Invocation invocation) {
        ReadObjectQuery roq =
            (ReadObjectQuery)classDescriptor.getQueryManager().getQuery(PK_QUERYNAME);
        List queryArguments = roq.getArguments();
        int queryArgumentsSize = queryArguments.size();
        Vector executeArguments = new NonSynchronizedVector();
        for (int i = 0; i < queryArgumentsSize; i++) {
            String argName = (String)queryArguments.get(i);
            executeArguments.add(invocation.getParameter(argName));
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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, object, 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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                // check for switch from Byte[] to byte[]
                if (oxFieldMapping.getAttributeClassificationName() == APBYTE.getName()) {
                    orFieldMapping.setAttributeClassificationName(APBYTE.getName());
                }
          }
          ReadObjectQuery roq = new ReadObjectQuery();
          String generatedJavaClassName = getGeneratedJavaClassName(tableName);
          roq.setReferenceClassName(generatedJavaClassName);
          Expression expression = null;
          Expression builder = new ExpressionBuilder();
          Expression subExp1;
          Expression subExp2;
          Expression subExpression;
          List<DatabaseField> primaryKeyFields = desc.getPrimaryKeyFields();
          for (int index = 0; index < primaryKeyFields.size(); index++) {
              DatabaseField primaryKeyField = primaryKeyFields.get(index);
              subExp1 = builder.getField(primaryKeyField);
              subExp2 = builder.getParameter(primaryKeyField.getName().toLowerCase());
              subExpression = subExp1.equal(subExp2);
              if (expression == null) {
                  expression = subExpression;
              }
              else {
                  expression = expression.and(subExpression);
              }
              roq.addArgument(primaryKeyField.getName().toLowerCase());
          }
          roq.setSelectionCriteria(expression);
          desc.getQueryManager().addQuery(PK_QUERYNAME, roq);
          ReadAllQuery raq = new ReadAllQuery();
          raq.setReferenceClassName(generatedJavaClassName);
          desc.getQueryManager().addQuery(FINDALL_QUERYNAME, raq);
        }
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        if(null == xmlRow.getDOM().getAttributes().getNamedItemNS(XMLConstants.SCHEMA_INSTANCE_URL, XMLConstants.SCHEMA_NIL_ATTRIBUTE)) {
            xmlRow.setUnmarshaller(xmlUnmarshaller);
            xmlRow.setDocPresPolicy(xmlContext.getDocumentPreservationPolicy(readSession));
            XMLObjectBuilder objectBuilder = (XMLObjectBuilder) descriptor.getObjectBuilder();

            ReadObjectQuery query = new ReadObjectQuery();
            query.setReferenceClass(referenceClass);
            query.setSession(readSession);
            object = objectBuilder.buildObject(query, xmlRow, null);

            // resolve mapping references
            xmlUnmarshaller.resolveReferences(readSession);
        }
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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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    /**
     * INTERNAL:
     */
    protected ReadObjectQuery getQuery() {
        if (m_query == null) {
            m_query = new ReadObjectQuery(m_parentClass);
           
            Expression selectionCriteria = null;
            Iterator keys = m_queryKeyFields.keySet().iterator();
            ExpressionBuilder builder = new ExpressionBuilder();
           
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