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// Copyright (C) 2023 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "icing/join/join-children-fetcher.h"
#include "icing/absl_ports/canonical_errors.h"
#include "icing/absl_ports/str_cat.h"
namespace icing {
namespace lib {
libtextclassifier3::StatusOr<std::vector<ScoredDocumentHit>>
JoinChildrenFetcher::GetChildren(DocumentId parent_doc_id) const {
if (join_spec_.parent_property_expression() == kQualifiedIdExpr) {
if (auto iter = map_joinable_qualified_id_.find(parent_doc_id);
iter != map_joinable_qualified_id_.end()) {
return iter->second;
}
return std::vector<ScoredDocumentHit>();
}
// TODO(b/256022027): So far we only support kQualifiedIdExpr for
// parent_property_expression, we could support more.
return absl_ports::UnimplementedError(absl_ports::StrCat(
"Parent property expression must be ", kQualifiedIdExpr));
}
} // namespace lib
} // namespace icing
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