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field.go
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field.go
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// Copyright (c) 2014 Couchbase, Inc.
// 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.
package document
import (
"github.com/blevesearch/bleve/analysis"
)
type Field interface {
// Name returns the path of the field from the root DocumentMapping.
// A root field path is "field", a subdocument field is "parent.field".
Name() string
// ArrayPositions returns the intermediate document and field indices
// required to resolve the field value in the document. For example, if the
// field path is "doc1.doc2.field" where doc1 and doc2 are slices or
// arrays, ArrayPositions returns 2 indices used to resolve "doc2" value in
// "doc1", then "field" in "doc2".
ArrayPositions() []uint64
Options() IndexingOptions
Analyze() (int, analysis.TokenFrequencies)
Value() []byte
// NumPlainTextBytes should return the number of plain text bytes
// that this field represents - this is a common metric for tracking
// the rate of indexing
NumPlainTextBytes() uint64
}