Package org.apache.lucene.document
Enum Field.Index
- All Implemented Interfaces:
Serializable
,Comparable<Field.Index>
- Enclosing class:
- Field
Deprecated.
This is here only to ease transition from
the pre-4.0 APIs.
Specifies whether and how a field should be indexed.
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Enum Constant Summary
Enum ConstantsEnum ConstantDescriptionDeprecated.Index the tokens produced by running the field's value through an Analyzer.Deprecated.Expert: Index the tokens produced by running the field's value through an Analyzer, and also separately disable the storing of norms.Deprecated.Do not index the field value.Deprecated.Index the field's value without using an Analyzer, so it can be searched.Deprecated.Expert: Index the field's value without an Analyzer, and also disable the indexing of norms. -
Method Summary
Modifier and TypeMethodDescriptionabstract boolean
Deprecated.abstract boolean
Deprecated.abstract boolean
Deprecated.static Field.Index
toIndex
(boolean indexed, boolean analyzed) Deprecated.Get the best representation of the index given the flags.static Field.Index
toIndex
(boolean indexed, boolean analyzed, boolean omitNorms) Deprecated.Expert: Get the best representation of the index given the flags.static Field.Index
Deprecated.Returns the enum constant of this type with the specified name.static Field.Index[]
values()
Deprecated.Returns an array containing the constants of this enum type, in the order they are declared.
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Enum Constant Details
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NO
Deprecated.Do not index the field value. This field can thus not be searched, but one can still access its contents provided it isstored
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ANALYZED
Deprecated.Index the tokens produced by running the field's value through an Analyzer. This is useful for common text. -
NOT_ANALYZED
Deprecated.Index the field's value without using an Analyzer, so it can be searched. As no analyzer is used the value will be stored as a single term. This is useful for unique Ids like product numbers. -
NOT_ANALYZED_NO_NORMS
Deprecated.Expert: Index the field's value without an Analyzer, and also disable the indexing of norms. Note that you can also separately enable/disable norms by callingFieldType.setOmitNorms(boolean)
. No norms means that index-time field and document boosting and field length normalization are disabled. The benefit is less memory usage as norms take up one byte of RAM per indexed field for every document in the index, during searching. Note that once you index a given field with norms enabled, disabling norms will have no effect. In other words, for this to have the above described effect on a field, all instances of that field must be indexed with NOT_ANALYZED_NO_NORMS from the beginning. -
ANALYZED_NO_NORMS
Deprecated.Expert: Index the tokens produced by running the field's value through an Analyzer, and also separately disable the storing of norms. SeeNOT_ANALYZED_NO_NORMS
for what norms are and why you may want to disable them.
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Method Details
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values
Deprecated.Returns an array containing the constants of this enum type, in the order they are declared.- Returns:
- an array containing the constants of this enum type, in the order they are declared
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valueOf
Deprecated.Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)- Parameters:
name
- the name of the enum constant to be returned.- Returns:
- the enum constant with the specified name
- Throws:
IllegalArgumentException
- if this enum type has no constant with the specified nameNullPointerException
- if the argument is null
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toIndex
Deprecated.Get the best representation of the index given the flags. -
toIndex
Deprecated.Expert: Get the best representation of the index given the flags. -
isIndexed
public abstract boolean isIndexed()Deprecated. -
isAnalyzed
public abstract boolean isAnalyzed()Deprecated. -
omitNorms
public abstract boolean omitNorms()Deprecated.
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