/**
* INTERNAL: This method is used when computing the nested queries for batch read mappings. It
* recurses computing the nested mapping queries.
*/
protected void computeNestedQueriesForBatchReadExpressions(Vector batchReadExpressions) {
for (int index = 0; index < batchReadExpressions.size(); index++) {
ObjectExpression objectExpression = (ObjectExpression) batchReadExpressions.get(index);
// Expression may not have been initialized.
ExpressionBuilder builder = objectExpression.getBuilder();
builder.setSession(getSession().getRootSession(null));
builder.setQueryClass(getReferenceClass());
// PERF: Cache join attribute names.
ObjectExpression baseExpression = objectExpression;
while (!baseExpression.getBaseExpression().isExpressionBuilder()) {
baseExpression = (ObjectExpression) baseExpression.getBaseExpression();
}
this.batchReadAttributes.add(baseExpression.getName());
// Ignore nested
if (objectExpression.getBaseExpression().isExpressionBuilder()) {
DatabaseMapping mapping = objectExpression.getMapping();
if ((mapping != null) && mapping.isForeignReferenceMapping()) {
// A nested query must be built to pass to the descriptor that looks like the real query
// execution would.
ReadQuery nestedQuery = ((ForeignReferenceMapping) mapping).prepareNestedBatchQuery(this);
// Register the nested query to be used by the mapping for all the objects.
getBatchReadMappingQueries().put(mapping, nestedQuery);
}
}
}
}
/**
* 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;
}
}
/** INTERNAL: Return if the attribute is specified for batch reading. */
public boolean isAttributeBatchRead(String attributeName) {
if (!hasBatchReadAttributes()) {
return false;
}
Vector batchReadAttributeExpressions = getBatchReadAttributeExpressions();
int size = batchReadAttributeExpressions.size();
for (int index = 0; index < size; index++) {
QueryKeyExpression expression = (QueryKeyExpression) batchReadAttributeExpressions.get(index);
while (!expression.getBaseExpression().isExpressionBuilder()) {
expression = (QueryKeyExpression) expression.getBaseExpression();
}
if (expression.getName().equals(attributeName)) {
return true;
}
}
return false;
}