@Override
protected Query applyArrayReference(
Reference arrayReference, Literal literal, Context context) throws IOException {
QueryBuilderHelper builder =
QueryBuilderHelper.forType(((CollectionType) arrayReference.valueType()).innerType());
return builder.eq(arrayReference.ident().columnIdent().fqn(), literal.value());
}
@Override
public Query apply(Function input, Context context) {
Tuple<Reference, Literal> tuple = super.prepare(input);
if (tuple == null) {
return null;
}
Reference reference = tuple.v1();
Literal literal = tuple.v2();
String columnName = reference.info().ident().columnIdent().fqn();
if (DataTypes.isCollectionType(reference.valueType())
&& DataTypes.isCollectionType(literal.valueType())) {
// create boolean filter with term filters to pre-filter the result before applying the
// functionQuery.
BooleanFilter boolTermsFilter = new BooleanFilter();
DataType type = literal.valueType();
while (DataTypes.isCollectionType(type)) {
type = ((CollectionType) type).innerType();
}
QueryBuilderHelper builder = QueryBuilderHelper.forType(type);
Object value = literal.value();
buildTermsQuery(boolTermsFilter, value, columnName, builder);
if (boolTermsFilter.clauses().isEmpty()) {
// all values are null...
return genericFunctionQuery(input, context);
}
// wrap boolTermsFilter and genericFunction filter in an additional BooleanFilter to
// control the ordering of the filters
// termsFilter is applied first
// afterwards the more expensive genericFunctionFilter
BooleanFilter filterClauses = new BooleanFilter();
filterClauses.add(boolTermsFilter, BooleanClause.Occur.MUST);
filterClauses.add(genericFunctionFilter(input, context), BooleanClause.Occur.MUST);
return new FilteredQuery(Queries.newMatchAllQuery(), filterClauses);
}
QueryBuilderHelper builder = QueryBuilderHelper.forType(tuple.v1().valueType());
return builder.eq(columnName, tuple.v2().value());
}
