/** INTERNAL: */ protected Vector<DatabaseField> getVectorOfFieldsToGenerate(int operation, DatabaseTable table) { if (this.main[operation][ALL] == null) { return null; } if (this.tableToFieldsForGenerationMap == null) { // the method is called for the first time tableToFieldsForGenerationMap = new HashMap[NUM_OPERATIONS]; } if (this.tableToFieldsForGenerationMap[operation] == null) { // the method is called for the first time for this operation this.tableToFieldsForGenerationMap[operation] = new HashMap(); } Vector<DatabaseField> fieldsForGeneration = this.tableToFieldsForGenerationMap[operation].get(table); if (fieldsForGeneration == null) { // the method is called for the first time for this operation and this table fieldsForGeneration = new NonSynchronizedVector(); Iterator it = this.main[operation][ALL].iterator(); while (it.hasNext()) { DatabaseField field = (DatabaseField) it.next(); if (field.getTable().equals(table)) { fieldsForGeneration.add(field); } } this.tableToFieldsForGenerationMap[operation].put(table, fieldsForGeneration); } return fieldsForGeneration; }
/** * INTERNAL: Convert all the class-name-based settings in this InheritancePolicy to actual * class-based settings. This method is used when converting a project that has been built with * class names to a project with classes. It will also convert referenced classes to the versions * of the classes from the classLoader. */ public void convertClassNamesToClasses(ClassLoader classLoader) { Vector newParentInterfaces = new Vector(); for (Iterator iterator = getParentInterfaceNames().iterator(); iterator.hasNext(); ) { String interfaceName = (String) iterator.next(); Class interfaceClass = null; try { if (PrivilegedAccessHelper.shouldUsePrivilegedAccess()) { try { interfaceClass = (Class) AccessController.doPrivileged( new PrivilegedClassForName(interfaceName, true, classLoader)); } catch (PrivilegedActionException exception) { throw ValidationException.classNotFoundWhileConvertingClassNames( interfaceName, exception.getException()); } } else { interfaceClass = org.eclipse.persistence.internal.security.PrivilegedAccessHelper.getClassForName( interfaceName, true, classLoader); } } catch (ClassNotFoundException exc) { throw ValidationException.classNotFoundWhileConvertingClassNames(interfaceName, exc); } newParentInterfaces.add(interfaceClass); } this.parentInterfaces = newParentInterfaces; }
/** * Return the first employee that has a long enough name for the test. If no match is found throw * a warning exception. See bug 223005 * * @param vectorOfEmployees * @param minFirstNameLength * @param testName * @return */ public Employee getEmployeeWithRequiredNameLength( Vector vectorOfEmployees, int minFirstNameLength, String testName) { Employee empMatch = null; Vector<Employee> employees = vectorOfEmployees; String firstName; StringBuffer partialFirstName; // Loop through the collection of employees to find one that matches our test requirements for (int i = 0; i < employees.size(); i++) { empMatch = employees.get(i); firstName = empMatch.getFirstName(); // Verify length criteria if (firstName.length() >= minFirstNameLength) { // exit the for loop - return the last empMatch i = employees.size(); } } // If we could not find a proper employee for testing - throw a warning if (null == empMatch) { throw new RuntimeException( testName + " Setup Failed: unable to find an Employee with firstName size of at least " + minFirstNameLength); } else { return empMatch; } }
public void setup() { Employee emp1; Employee emp2; Employee emp3; emp1 = (Employee) getSomeEmployees().firstElement(); emp2 = (Employee) getSomeEmployees().elementAt(1); emp3 = (Employee) getSomeEmployees().elementAt(2); ExpressionBuilder builder = new ExpressionBuilder(); Vector idVector = new Vector(); idVector.add(emp1.getId()); idVector.add(emp2.getId()); idVector.add(emp3.getId()); Expression whereClause = builder.get("id").notIn(idVector); ReadAllQuery raq = new ReadAllQuery(); raq.setReferenceClass(Employee.class); raq.setSelectionCriteria(whereClause); setOriginalOject(getSession().executeQuery(raq)); getSession().getIdentityMapAccessor().initializeAllIdentityMaps(); String ejbqlString = "SELECT OBJECT(emp) FROM Employee emp WHERE emp.id NOT IN ("; ejbqlString = ejbqlString + emp1.getId().toString() + ", "; ejbqlString = ejbqlString + emp2.getId().toString() + ", "; ejbqlString = ejbqlString + emp3.getId().toString(); ejbqlString = ejbqlString + ")"; setEjbqlString(ejbqlString); super.setup(); }
public void setup() { Vector employees = getSomeEmployees(); // Bug 223005: Verify that we have at least 1 employee with the required field length otherwise // an EclipseLinkException will be thrown Employee emp = getEmployeeWithRequiredNameLength(employees, MIN_FIRSTNAME_LENGTH, getName()); String partialFirstName = "%" + emp.getFirstName().substring(0, 3) + "%"; ReadAllQuery raq = new ReadAllQuery(); raq.setReferenceClass(Employee.class); Vector parameters = new Vector(); parameters.add(partialFirstName); ExpressionBuilder eb = new ExpressionBuilder(); Expression whereClause = eb.get("firstName").like(partialFirstName); raq.setSelectionCriteria(whereClause); employees = (Vector) getSession().executeQuery(raq); String ejbqlString = "SELECT OBJECT(emp) FROM Employee emp WHERE emp.firstName LIKE ?1"; setEjbqlString(ejbqlString); setOriginalOject(employees); setArguments(parameters); Vector myArgumentNames = new Vector(); myArgumentNames.add("1"); setArgumentNames(myArgumentNames); super.setup(); }
/** A clean way to specify which tests run on which platforms. */ public boolean isPlatformSupported(DatabasePlatform platform) { boolean supported = false; boolean notSupported = false; if ((unsupportedPlatforms == null) && (supportedPlatforms == null)) { return true; } if (supportedPlatforms != null) { for (Iterator iterator = supportedPlatforms.iterator(); iterator.hasNext(); ) { Class platformClass = (Class) iterator.next(); if (platformClass.isInstance(platform)) { supported = true; } } } else { supported = true; } if (unsupportedPlatforms != null) { for (Iterator iterator = unsupportedPlatforms.iterator(); iterator.hasNext(); ) { Class platformClass = (Class) iterator.next(); if (platformClass.isInstance(platform)) { notSupported = true; } } } return supported && (!notSupported); }
protected void buildExpectedResults() { Vector employees = getSession().readAllObjects(Employee.class); Object[] result = new Object[1]; result[0] = new java.math.BigDecimal(employees.size()); addResult(result, null); }
/** * INTERNAL: This methods clones all the fields and ensures that each collection refers to the * same clones. */ @Override public Object clone() { VariableOneToOneMapping clone = (VariableOneToOneMapping) super.clone(); Map setOfKeys = new HashMap(getSourceToTargetQueryKeyNames().size()); Map sourceToTarget = new HashMap(getSourceToTargetQueryKeyNames().size()); Vector foreignKeys = org.eclipse.persistence.internal.helper.NonSynchronizedVector.newInstance( getForeignKeyFields().size()); if (getTypeField() != null) { clone.setTypeField((DatabaseField) this.getTypeField().clone()); } for (Iterator enumtr = getSourceToTargetQueryKeyNames().keySet().iterator(); enumtr.hasNext(); ) { // Clone the SourceKeyFields DatabaseField field = (DatabaseField) enumtr.next(); DatabaseField clonedField = (DatabaseField) field.clone(); setOfKeys.put(field, clonedField); // on the next line I'm cloning the query key names sourceToTarget.put(clonedField, getSourceToTargetQueryKeyNames().get(field)); } for (Enumeration enumtr = getForeignKeyFields().elements(); enumtr.hasMoreElements(); ) { DatabaseField field = (DatabaseField) enumtr.nextElement(); foreignKeys.addElement(setOfKeys.get(field)); } clone.setSourceToTargetQueryKeyFields(sourceToTarget); clone.setForeignKeyFields(foreignKeys); clone.setTypeIndicatorTranslation(new HashMap(this.getTypeIndicatorTranslation())); return clone; }
/** INTERNAL: Transform the object-level value into a database-level value */ public Object getFieldValue(Object objectValue, AbstractSession session) { DatabaseMapping mapping = getMapping(); Object fieldValue = objectValue; if ((mapping != null) && (mapping.isDirectToFieldMapping() || mapping.isDirectCollectionMapping())) { // CR#3623207, check for IN Collection here not in mapping. if (objectValue instanceof Collection) { // This can actually be a collection for IN within expressions... however it would be better // for expressions to handle this. Collection values = (Collection) objectValue; Vector fieldValues = new Vector(values.size()); for (Iterator iterator = values.iterator(); iterator.hasNext(); ) { Object value = iterator.next(); if (!(value instanceof Expression)) { value = getFieldValue(value, session); } fieldValues.add(value); } fieldValue = fieldValues; } else { if (mapping.isDirectToFieldMapping()) { fieldValue = ((AbstractDirectMapping) mapping).getFieldValue(objectValue, session); } else if (mapping.isDirectCollectionMapping()) { fieldValue = ((DirectCollectionMapping) mapping).getFieldValue(objectValue, session); } } } return fieldValue; }
/** * INTERNAL: Build and return the appropriate field value for the specified set of nested rows. * The database better be expecting an ARRAY. It looks like we can ignore inheritance here.... */ public Object buildFieldValueFromNestedRows( Vector nestedRows, String structureName, AbstractSession session) throws DatabaseException { Object[] fields = new Object[nestedRows.size()]; java.sql.Connection connection = ((DatabaseAccessor) session.getAccessor()).getConnection(); boolean reconnected = false; try { if (connection == null) { ((DatabaseAccessor) session.getAccessor()).incrementCallCount(session); reconnected = true; connection = ((DatabaseAccessor) session.getAccessor()).getConnection(); } int i = 0; for (Enumeration stream = nestedRows.elements(); stream.hasMoreElements(); ) { AbstractRecord nestedRow = (AbstractRecord) stream.nextElement(); fields[i++] = this.buildStructureFromRow(nestedRow, session, connection); } return session.getPlatform().createArray(structureName, fields, session, connection); } catch (java.sql.SQLException exception) { throw DatabaseException.sqlException(exception, session, false); } finally { if (reconnected) { ((DatabaseAccessor) session.getAccessor()).decrementCallCount(); } } }
public static BinaryOperatorWithParameterTest getNumericParameterDivideTestWithBracketsAfterComparison() { BinaryOperatorWithParameterTest theTest = new BinaryOperatorWithParameterTest(); theTest.setName("Divide with parameter test with brackets after comparison"); String parameterName = "amountToDivide"; theTest.setExpressionParameters(new Vector()); theTest.getExpressionParameters().add(parameterName); ExpressionBuilder builder = new ExpressionBuilder(); Expression whereClause = ExpressionBuilder.fromConstant(new Integer(20000), builder) .greaterThan( ExpressionMath.divide( builder.get("salary"), (builder.getParameter(parameterName)))); theTest.setOriginalObjectExpression(whereClause); String ejbqlString = "SELECT OBJECT(emp) FROM Employee emp WHERE 20000 > (emp.salary / ?1)"; theTest.setEjbqlString(ejbqlString); Vector myArgumentNames = new Vector(); myArgumentNames.add("1"); theTest.setArgumentNames(myArgumentNames); theTest.setArguments(new Vector()); theTest.getArguments().addElement(new Integer(2)); return theTest; }
public static BinaryOperatorWithParameterTest getNumericParameterDivideTest() { BinaryOperatorWithParameterTest theTest = new BinaryOperatorWithParameterTest(); theTest.setName("Divide with parameter test"); String parameterName = "amountToDivide"; theTest.setExpressionParameters(new Vector()); theTest.getExpressionParameters().add(parameterName); ExpressionBuilder builder = new ExpressionBuilder(); Expression whereClause = ExpressionMath.divide(builder.get("salary"), (builder.getParameter(parameterName))) .lessThanEqual(20000); theTest.setOriginalObjectExpression(whereClause); String ejbqlString = "SELECT OBJECT(emp) FROM Employee emp WHERE emp.salary / ?1 <= 20000"; theTest.setEjbqlString(ejbqlString); Vector myArgumentNames = new Vector(); myArgumentNames.add("1"); theTest.setArgumentNames(myArgumentNames); theTest.setArguments(new Vector()); theTest.getArguments().addElement(new Integer(2)); return theTest; }
public static BinaryOperatorWithParameterTest getNumericParameterMultiplyTestWithBracketsBeforeComparison() { BinaryOperatorWithParameterTest theTest = new BinaryOperatorWithParameterTest(); theTest.setName("Multiply with parameter test with brackets before comparison"); String parameterName = "amountToMultiply"; theTest.setExpressionParameters(new Vector()); theTest.getExpressionParameters().add(parameterName); ExpressionBuilder builder = new ExpressionBuilder(); Expression whereClause = ExpressionMath.multiply(builder.get("salary"), (builder.getParameter(parameterName))) .lessThanEqual(100000); theTest.setOriginalObjectExpression(whereClause); String ejbqlString = "SELECT OBJECT(emp) FROM Employee emp WHERE (emp.salary * ?1) <= 100000"; theTest.setEjbqlString(ejbqlString); Vector myArgumentNames = new Vector(); myArgumentNames.add("1"); theTest.setArgumentNames(myArgumentNames); theTest.setArguments(new Vector()); theTest.getArguments().addElement(new Integer(2)); return theTest; }
public Vector getParentInterfaceNames() { if (parentInterfaceNames.isEmpty() && !parentInterfaces.isEmpty()) { for (int i = 0; i < parentInterfaces.size(); i++) { parentInterfaceNames.addElement(((Class) parentInterfaces.elementAt(i)).getName()); } } return parentInterfaceNames; }
/** * PUBLIC: Return the foreign key field names associated with the mapping. These are only the * source fields that are writable. */ public Vector getForeignKeyFieldNames() { Vector fieldNames = new Vector(getForeignKeyFields().size()); for (Enumeration fieldsEnum = getForeignKeyFields().elements(); fieldsEnum.hasMoreElements(); ) { fieldNames.addElement(((DatabaseField) fieldsEnum.nextElement()).getQualifiedName()); } return fieldNames; }
/** PUBLIC: Return a collection of the field to query key associations. */ public Vector getSourceToTargetQueryKeyFieldAssociations() { Vector associations = new Vector(getSourceToTargetQueryKeyNames().size()); Iterator sourceFieldEnum = getSourceToTargetQueryKeyNames().keySet().iterator(); Iterator targetQueryKeyEnum = getSourceToTargetQueryKeyNames().values().iterator(); while (sourceFieldEnum.hasNext()) { Object fieldValue = ((DatabaseField) sourceFieldEnum.next()).getQualifiedName(); Object attributeValue = targetQueryKeyEnum.next(); associations.addElement(new Association(fieldValue, attributeValue)); } return associations; }
/** PUBLIC: Set a collection of the source to target query key/field associations. */ public void setSourceToTargetQueryKeyFieldAssociations( Vector sourceToTargetQueryKeyFieldAssociations) { setSourceToTargetQueryKeyFields( new HashMap(sourceToTargetQueryKeyFieldAssociations.size() + 1)); for (Enumeration associationsEnum = sourceToTargetQueryKeyFieldAssociations.elements(); associationsEnum.hasMoreElements(); ) { Association association = (Association) associationsEnum.nextElement(); Object sourceField = new DatabaseField((String) association.getKey()); String targetQueryKey = (String) association.getValue(); getSourceToTargetQueryKeyNames().put(sourceField, targetQueryKey); } }
protected void buildExpectedResults() { Vector projects = getSession().readAllObjects(LargeProject.class); for (Enumeration e = projects.elements(); e.hasMoreElements(); ) { LargeProject project = (LargeProject) e.nextElement(); if (project.getBudget() > 4000) { Object[] result = new Object[2]; result[0] = project.getName(); result[1] = new Double(project.getBudget()); addResult(result, null); } } }
/** INTERNAL: Return all the fields populated by this mapping. */ @Override protected Vector collectFields() { DatabaseField type = getTypeField(); // Get a shallow copy of the Vector if (type != null) { Vector sourceFields = (Vector) getForeignKeyFields().clone(); sourceFields.addElement(type); return sourceFields; } else { return getForeignKeyFields(); } }
/** * PUBLIC: Return the foreign key field names associated with the mapping. These are only the * source fields that are writable. */ public void setForeignKeyFieldNames(Vector fieldNames) { Vector fields = org.eclipse.persistence.internal.helper.NonSynchronizedVector.newInstance( fieldNames.size()); for (Enumeration fieldNamesEnum = fieldNames.elements(); fieldNamesEnum.hasMoreElements(); ) { fields.addElement(new DatabaseField((String) fieldNamesEnum.nextElement())); } setForeignKeyFields(fields); if (!fields.isEmpty()) { setIsForeignKeyRelationship(true); } }
/** * INTERNAL: Return the value for in memory comparison. This is only valid for valueable * expressions. */ public Object valueFromObject( Object object, AbstractSession session, AbstractRecord translationRow, int valueHolderPolicy, boolean isObjectUnregistered) { // The expression may be across a relationship, in which case it must be traversed. if ((!getBaseExpression().isExpressionBuilder()) && getBaseExpression().isQueryKeyExpression()) { object = getBaseExpression() .valueFromObject( object, session, translationRow, valueHolderPolicy, isObjectUnregistered); // toDo: Null means the join filters out the row, returning null is not correct if an inner // join, // outer/inner joins need to be fixed to filter correctly. if (object == null) { return null; } // If from an anyof the object will be a collection of values, // A new vector must union the object values and the values extracted from it. if (object instanceof Vector) { Vector comparisonVector = new Vector(((Vector) object).size() + 2); for (Enumeration valuesToIterate = ((Vector) object).elements(); valuesToIterate.hasMoreElements(); ) { Object vectorObject = valuesToIterate.nextElement(); if (vectorObject == null) { comparisonVector.addElement(vectorObject); } else { Object valueOrValues = valuesFromCollection( vectorObject, session, valueHolderPolicy, isObjectUnregistered); // If a collection of values were extracted union them. if (valueOrValues instanceof Vector) { for (Enumeration nestedValuesToIterate = ((Vector) valueOrValues).elements(); nestedValuesToIterate.hasMoreElements(); ) { comparisonVector.addElement(nestedValuesToIterate.nextElement()); } } else { comparisonVector.addElement(valueOrValues); } } } return comparisonVector; } } return valuesFromCollection(object, session, valueHolderPolicy, isObjectUnregistered); }
/** PUBLIC: Set the class indicator associations. */ public void setClassIndicatorAssociations(Vector classIndicatorAssociations) { setTypeIndicatorNameTranslation(new HashMap(classIndicatorAssociations.size() + 1)); setTypeIndicatorTranslation(new HashMap((classIndicatorAssociations.size() * 2) + 1)); for (Enumeration associationsEnum = classIndicatorAssociations.elements(); associationsEnum.hasMoreElements(); ) { Association association = (Association) associationsEnum.nextElement(); Object classValue = association.getKey(); if (classValue instanceof Class) { // 904 projects will be a class type. addClassIndicator((Class) association.getKey(), association.getValue()); } else { addClassNameIndicator((String) association.getKey(), association.getValue()); } } }
public Vector getAttributeFromAll(String attributeName, Vector objects) { ClassDescriptor descriptor = getSession().getClassDescriptor(getReferenceClass()); DirectToFieldMapping mapping = (DirectToFieldMapping) descriptor.getMappingForAttributeName(attributeName); Vector attributes = new Vector(); Object currentObject; for (int i = 0; i < objects.size(); i++) { currentObject = objects.elementAt(i); if (currentObject.getClass() == ReportQueryResult.class) { attributes.addElement(((ReportQueryResult) currentObject).get(attributeName)); } else { attributes.addElement(mapping.getAttributeValueFromObject(currentObject)); } } return attributes; }
/** * INTERNAL: Return the class indicator associations for XML. List of class-name/value * associations. */ public Vector getClassIndicatorAssociations() { Vector associations = new Vector(); Iterator classesEnum = getTypeIndicatorNameTranslation().keySet().iterator(); Iterator valuesEnum = getTypeIndicatorNameTranslation().values().iterator(); while (classesEnum.hasNext()) { Object className = classesEnum.next(); // If the project was built in runtime is a class, MW is a string. if (className instanceof Class) { className = ((Class) className).getName(); } Object value = valuesEnum.next(); associations.addElement(new TypedAssociation(className, value)); } return associations; }
/** Append the string containing the SQL insert string for the given table. */ protected SQLCall buildCallWithoutReturning(AbstractSession session) { SQLCall call = new SQLCall(); call.returnNothing(); Writer writer = new CharArrayWriter(200); try { writer.write("INSERT "); if (getHintString() != null) { writer.write(getHintString()); writer.write(" "); } writer.write("INTO "); writer.write(getTable().getQualifiedNameDelimited(session.getPlatform())); writer.write(" ("); Vector fieldsForTable = new Vector(); for (Enumeration fieldsEnum = getModifyRow().keys(); fieldsEnum.hasMoreElements(); ) { DatabaseField field = (DatabaseField) fieldsEnum.nextElement(); if (field.getTable().equals(getTable()) || (!field.hasTableName())) { fieldsForTable.addElement(field); } } if (fieldsForTable.isEmpty()) { throw QueryException.objectToInsertIsEmpty(getTable()); } for (int i = 0; i < fieldsForTable.size(); i++) { writer.write( ((DatabaseField) fieldsForTable.elementAt(i)).getNameDelimited(session.getPlatform())); if ((i + 1) < fieldsForTable.size()) { writer.write(", "); } } writer.write(") VALUES ("); for (int i = 0; i < fieldsForTable.size(); i++) { DatabaseField field = (DatabaseField) fieldsForTable.elementAt(i); call.appendModify(writer, field); if ((i + 1) < fieldsForTable.size()) { writer.write(", "); } } writer.write(")"); call.setSQLString(writer.toString()); } catch (IOException exception) { throw ValidationException.fileError(exception); } return call; }
/** * Verify that the query ran successfully, and that the number of objects returned matches the * number of managed employees. */ protected void verify() throws Exception { Vector params = new Vector(); params.add(someManager.getId()); // numberOfManagedEmployees try { Vector results = (Vector) getSession().executeQuery(query, params); if (!(numberOfManagedEmployees == results.size())) { throw new TestErrorException( results.size() + " objects were read from the database, but originially there were, " + numberOfManagedEmployees + "."); } } catch (org.eclipse.persistence.exceptions.DatabaseException e) { throw new TestErrorException( "Custom SQL subquery with parameters failed with a DatabaseException."); } }
/** * Reset the commit order from the session's descriptors. This uses the constraint dependencies in * the descriptor's mappings, to decide which descriptors are dependent on which other * descriptors. Multiple computations of the commit order should produce the same ordering. This * is done to improve performance on unit of work writes through decreasing the stack size, and * acts as a deadlock avoidance mechanism. */ public void initializeCommitOrder() { Vector descriptors = Helper.buildVectorFromMapElements(getSession().getDescriptors()); // Must ensure uniqueness, some descriptor my be register twice for interfaces. descriptors = Helper.addAllUniqueToVector(new Vector(descriptors.size()), descriptors); Object[] descriptorsArray = new Object[descriptors.size()]; for (int index = 0; index < descriptors.size(); index++) { descriptorsArray[index] = descriptors.elementAt(index); } Arrays.sort(descriptorsArray, new DescriptorCompare()); descriptors = new Vector(descriptors.size()); for (int index = 0; index < descriptorsArray.length; index++) { descriptors.addElement(descriptorsArray[index]); } CommitOrderCalculator calculator = new CommitOrderCalculator(getSession()); calculator.addNodes(descriptors); calculator.calculateMappingDependencies(); calculator.orderCommits(); descriptors = calculator.getOrderedDescriptors(); calculator = new CommitOrderCalculator(getSession()); calculator.addNodes(descriptors); calculator.calculateSpecifiedDependencies(); calculator.orderCommits(); setCommitOrder(calculator.getOrderedClasses()); }
public ReadAllBindAllParametersTest() { v = new Vector(2); v.addElement(new BigDecimal(1001)); v.addElement(new BigDecimal(1002)); setName("ReadAllBindAllParametersTest"); setDescription( "Tests all combinations of shouldBindAllParameters attributes on Session and Query"); }
/* * This verify method presumes that the stored procedure in EmployeeCustomSQLSystem.buildSQLInsertProcedure * has not changed and still returns an output parameter VERSION with value 952 */ public void verify() { if (this.events.isEmpty()) { throw new TestErrorException("No session events were thrown and some were expected"); } else { if (((Number) ((DatabaseRecord) ((SessionEvent) events.firstElement()).getResult()) .get("EMPLOYEE.VERSION")) .intValue() != 952) { throw new TestErrorException("Wrong value returned"); } if (((WriteObjectQuery) ((SessionEvent) events.firstElement()).getQuery()).getObject() == null) { throw new TestErrorException("Object not set"); } } }
/** Retrieve next page size of objects from the remote cursored stream */ public Vector cursoredStreamNextPage( RemoteCursoredStream remoteCursoredStream, ReadQuery query, DistributedSession session, int pageSize) { Transporter transporter = null; try { transporter = getRemoteSessionController() .cursoredStreamNextPage(new Transporter(remoteCursoredStream.getID()), pageSize); } catch (RemoteException exception) { throw CommunicationException.errorInInvocation(exception); } if (transporter == null) { return null; } if (!transporter.wasOperationSuccessful()) { throw transporter.getException(); } Vector serverNextPageObjects = (Vector) transporter.getObject(); if (serverNextPageObjects == null) { cursoredStreamClose(remoteCursoredStream.getID()); return null; } Vector clientNextPageObjects = serverNextPageObjects; if (query.isReadAllQuery() && (!query.isReportQuery())) { // could be DataReadQuery clientNextPageObjects = new Vector(serverNextPageObjects.size()); for (Enumeration objEnum = serverNextPageObjects.elements(); objEnum.hasMoreElements(); ) { // 2612538 - the default size of Map (32) is appropriate Object clientObject = session.getObjectCorrespondingTo( objEnum.nextElement(), transporter.getObjectDescriptors(), new IdentityHashMap(), (ObjectLevelReadQuery) query); clientNextPageObjects.addElement(clientObject); } } return clientNextPageObjects; }