Class TSTLookup

Suggest implementation based on a Ternary Search Tree

Inheritance
System.Object
Lookup
TSTLookup
Inherited Members
System.Object.Equals(System.Object)
System.Object.Equals(System.Object, System.Object)
System.Object.GetHashCode()
System.Object.GetType()
System.Object.MemberwiseClone()
System.Object.ReferenceEquals(System.Object, System.Object)
System.Object.ToString()
Namespace: Lucene.Net.Search.Suggest.Tst
Assembly: Lucene.Net.Suggest.dll
Syntax
public class TSTLookup : Lookup

Constructors

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TSTLookup()

Creates a new TSTLookup with an empty Ternary Search Tree.

Declaration
public TSTLookup()
See Also

Properties

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Count

Declaration
public override long Count { get; }
Property Value
Type Description
System.Int64
Overrides

Methods

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Add(String, Object)

Adds a new node if 

key
already exists, otherwise replaces its value.

This method always returns true.

Declaration
public virtual bool Add(string key, object value)
Parameters
Type Name Description
System.String key
System.Object value
Returns
Type Description
System.Boolean
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Build(IInputIterator)

Declaration
public override void Build(IInputIterator tfit)
Parameters
Type Name Description
IInputIterator tfit
Overrides
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DoLookup(String, IEnumerable<BytesRef>, Boolean, Int32)

Declaration
public override IList<Lookup.LookupResult> DoLookup(string key, IEnumerable<BytesRef> contexts, bool onlyMorePopular, int num)
Parameters
Type Name Description
System.String key
System.Collections.Generic.IEnumerable<BytesRef> contexts
System.Boolean onlyMorePopular
System.Int32 num
Returns
Type Description
System.Collections.Generic.IList<Lookup.LookupResult>
Overrides
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Get(String)

Returns the value for the specified key, or null if the key does not exist.

Declaration
public virtual object Get(string key)
Parameters
Type Name Description
System.String key
Returns
Type Description
System.Object
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GetSizeInBytes()

Returns byte size of the underlying TST

Declaration
public override long GetSizeInBytes()
Returns
Type Description
System.Int64
Overrides
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Load(DataInput)

Declaration
public override bool Load(DataInput input)
Parameters
Type Name Description
DataInput input
Returns
Type Description
System.Boolean
Overrides
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Store(DataOutput)

Declaration
public override bool Store(DataOutput output)
Parameters
Type Name Description
DataOutput output
Returns
Type Description
System.Boolean
Overrides

See Also