public override void Remove(Statement statement)
{
if (statement.AnyNull)
{
for (int i = 0; i < statements.Count; i++)
{
Statement s = (Statement)statements[i];
if (statement.Matches(s))
{
statements.RemoveAt(i); i--;
if (isIndexed)
{
GetIndexArray(statementsAboutSubject, s.Subject).Remove(s);
GetIndexArray(statementsAboutObject, s.Object).Remove(s);
}
}
}
}
else
{
statements.Remove(statement);
if (isIndexed)
{
GetIndexArray(statementsAboutSubject, statement.Subject).Remove(statement);
GetIndexArray(statementsAboutObject, statement.Object).Remove(statement);
}
}
}
public override void Select(Statement template, StatementSink result)
{
StatementList source = statements;
// The first time select is called, turn indexing on for the store.
// TODO: Perform this index in a background thread if there are a lot
// of statements.
if (!isIndexed && allowIndexing)
{
isIndexed = true;
for (int i = 0; i < StatementCount; i++)
{
Statement statement = this[i];
GetIndexArray(statementsAboutSubject, statement.Subject).Add(statement);
GetIndexArray(statementsAboutObject, statement.Object).Add(statement);
}
}
if (template.Subject != null)
{
ShorterList(ref source, GetIndexArray(statementsAboutSubject, template.Subject));
}
else if (template.Object != null)
{
ShorterList(ref source, GetIndexArray(statementsAboutObject, template.Object));
}
if (source == null)
{
return;
}
for (int i = 0; i < source.Count; i++)
{
Statement statement = source[i];
if (!template.Matches(statement))
{
continue;
}
if (!result.Add(statement))
{
return;
}
}
}
public override void Remove(Statement statement) {
if (statement.AnyNull) {
for (int i = 0; i < statements.Count; i++) {
Statement s = (Statement)statements[i];
if (statement.Matches(s)) {
statements.RemoveAt(i); i--;
if (isIndexed) {
GetIndexArray(statementsAboutSubject, s.Subject).Remove(s);
GetIndexArray(statementsAboutObject, s.Object).Remove(s);
}
}
}
} else {
statements.Remove(statement);
if (isIndexed) {
GetIndexArray(statementsAboutSubject, statement.Subject).Remove(statement);
GetIndexArray(statementsAboutObject, statement.Object).Remove(statement);
}
}
}
public override void Select(Statement template, StatementSink result) {
StatementList source = statements;
// The first time select is called, turn indexing on for the store.
// TODO: Perform this index in a background thread if there are a lot
// of statements.
if (!isIndexed && allowIndexing) {
isIndexed = true;
for (int i = 0; i < StatementCount; i++) {
Statement statement = this[i];
GetIndexArray(statementsAboutSubject, statement.Subject).Add(statement);
GetIndexArray(statementsAboutObject, statement.Object).Add(statement);
}
}
if (template.Subject != null) ShorterList(ref source, GetIndexArray(statementsAboutSubject, template.Subject));
else if (template.Object != null) ShorterList(ref source, GetIndexArray(statementsAboutObject, template.Object));
if (source == null) return;
for (int i = 0; i < source.Count; i++) {
Statement statement = source[i];
if (!template.Matches(statement))
continue;
if (!result.Add(statement)) return;
}
}