Package org.apache.lucene.collation
Class CollationDocValuesField
java.lang.Object
org.apache.lucene.document.Field
org.apache.lucene.collation.CollationDocValuesField
- All Implemented Interfaces:
IndexableField
Indexes collation keys as a single-valued
SortedDocValuesField
.
This is more efficient that CollationKeyAnalyzer
if the field only has one value: no
uninversion is necessary to sort on the field, locale-sensitive range queries can still work via
DocValuesRangeQuery
, and the underlying data structures built at index-time are likely
more efficient and use less memory than FieldCache.
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Nested Class Summary
Nested classes/interfaces inherited from class org.apache.lucene.document.Field
Field.Store
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Field Summary
Fields inherited from class org.apache.lucene.document.Field
fieldsData, tokenStream, type
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Constructor Summary
ConstructorDescriptionCollationDocValuesField
(String name, Collator collator) Create a new ICUCollationDocValuesField. -
Method Summary
Methods inherited from class org.apache.lucene.document.Field
binaryValue, fieldType, getCharSequenceValue, invertableType, numericValue, readerValue, setBytesValue, setBytesValue, setByteValue, setDoubleValue, setFloatValue, setIntValue, setLongValue, setReaderValue, setShortValue, setTokenStream, storedValue, stringValue, tokenStream, tokenStreamValue, toString
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Constructor Details
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CollationDocValuesField
Create a new ICUCollationDocValuesField.NOTE: you should not create a new one for each document, instead just make one and reuse it during your indexing process, setting the value via
setStringValue(String)
.- Parameters:
name
- field namecollator
- Collator for generating collation keys.
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Method Details
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name
- Specified by:
name
in interfaceIndexableField
- Overrides:
name
in classField
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setStringValue
- Overrides:
setStringValue
in classField
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