Package org.apache.lucene.util.fst
Class OnHeapFSTStore
java.lang.Object
org.apache.lucene.util.fst.OnHeapFSTStore
- All Implemented Interfaces:
Accountable,FSTReader
Provides storage of finite state machine (FST), using byte array or byte store allocated on heap.
- WARNING: This API is experimental and might change in incompatible ways in the next release.
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Field Summary
Fields inherited from interface org.apache.lucene.util.Accountable
NULL_ACCOUNTABLE -
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionGet the reverse BytesReader for this FSTlongReturn the memory usage of this object in bytes.voidwriteTo(DataOutput out) Write this FST to another DataOutputMethods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, waitMethods inherited from interface org.apache.lucene.util.Accountable
getChildResources
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Constructor Details
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OnHeapFSTStore
- Throws:
IOException
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Method Details
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ramBytesUsed
public long ramBytesUsed()Description copied from interface:AccountableReturn the memory usage of this object in bytes. Negative values are illegal.- Specified by:
ramBytesUsedin interfaceAccountable
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getReverseBytesReader
Description copied from interface:FSTReaderGet the reverse BytesReader for this FST- Specified by:
getReverseBytesReaderin interfaceFSTReader- Returns:
- the reverse BytesReader
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writeTo
Description copied from interface:FSTReaderWrite this FST to another DataOutput- Specified by:
writeToin interfaceFSTReader- Parameters:
out- the DataOutput- Throws:
IOException- if exception occurred during writing
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