/*
* Appends a new predicate to an old predicate using an AND logical operator between them
* and uses the specified relationshipPred to constrain the newPred.
*
* Handles case where old or new predicate is non-existent (white spaces only).
*
*/
protected String appendPredicate(String oldPred, String newPred, String relationshipPred) {
if (!(Utility.containsWhiteSpacesOnly(newPred))) {
if (!(Utility.containsWhiteSpacesOnly(relationshipPred))) {
newPred = "(" + relationshipPred + "AND " + newPred + ") ";
}
if (!(Utility.containsWhiteSpacesOnly(oldPred))) {
oldPred += "AND ";
}
oldPred += newPred;
}
return oldPred;
}
/*
* Appends a new predicate to an old predicate using an AND logical operator between them
* and used the default joinPred to constrain the newPred.
* Handles case where old or new predicate is non-existent (white spaces only).
*
*/
protected String appendPredicate(String oldPred, String newPred) {
if (!(Utility.containsWhiteSpacesOnly(newPred))) {
String joinPred = getJoinPredicate();
oldPred = appendPredicate(oldPred, newPred, joinPred);
}
return oldPred;
}
private String buildWhereClause() throws RegistryException {
String whereClause = "";
String filterPredicate = processFilters();
String branchPredicate = processBranches();
String subQueryPredicate = processSubQueries();
if (!(Utility.containsWhiteSpacesOnly(filterPredicate))) {
whereClause += filterPredicate;
}
whereClause = appendPredicate(whereClause, branchPredicate);
whereClause = appendPredicate(whereClause, subQueryPredicate);
// Only add "WHERE" if if top level FilterQueryProcessor (has no parent) AND
// there are non-white-space characters in whereClause
if (parentQueryProcessor == null) {
if (!(Utility.containsWhiteSpacesOnly(whereClause))) {
whereClause = " WHERE " + whereClause;
}
}
return whereClause;
}