Package org.apache.lucene.util.packed
Class PackedLongValues
- java.lang.Object
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- org.apache.lucene.util.LongValues
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- org.apache.lucene.util.packed.PackedLongValues
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- All Implemented Interfaces:
Accountable
public class PackedLongValues extends LongValues implements Accountable
Utility class to compress integers into aLongValuesinstance.
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Nested Class Summary
Nested Classes Modifier and Type Class Description static classPackedLongValues.BuilderA Builder for aPackedLongValuesinstance.classPackedLongValues.IteratorAn iterator over long values.
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Field Summary
Fields Modifier and Type Field Description static intDEFAULT_PAGE_SIZE-
Fields inherited from class org.apache.lucene.util.LongValues
IDENTITY, ZEROES
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Fields inherited from interface org.apache.lucene.util.Accountable
NULL_ACCOUNTABLE
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description static PackedLongValues.BuilderdeltaPackedBuilder(float acceptableOverheadRatio)static PackedLongValues.BuilderdeltaPackedBuilder(int pageSize, float acceptableOverheadRatio)Return a newPackedLongValues.Builderthat will compress efficiently integers that are close to each other.longget(long index)Get value atindex.PackedLongValues.Iteratoriterator()Return an iterator over the values of this array.static PackedLongValues.BuildermonotonicBuilder(float acceptableOverheadRatio)static PackedLongValues.BuildermonotonicBuilder(int pageSize, float acceptableOverheadRatio)Return a newPackedLongValues.Builderthat will compress efficiently integers that would be a monotonic function of their index.static PackedLongValues.BuilderpackedBuilder(float acceptableOverheadRatio)static PackedLongValues.BuilderpackedBuilder(int pageSize, float acceptableOverheadRatio)Return a newPackedLongValues.Builderthat will compress efficiently positive integers.longramBytesUsed()Return the memory usage of this object in bytes.longsize()Get the number of values in this array.-
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface org.apache.lucene.util.Accountable
getChildResources
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Field Detail
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DEFAULT_PAGE_SIZE
public static final int DEFAULT_PAGE_SIZE
- See Also:
- Constant Field Values
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Method Detail
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packedBuilder
public static PackedLongValues.Builder packedBuilder(int pageSize, float acceptableOverheadRatio)
Return a newPackedLongValues.Builderthat will compress efficiently positive integers.
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packedBuilder
public static PackedLongValues.Builder packedBuilder(float acceptableOverheadRatio)
- See Also:
packedBuilder(int, float)
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deltaPackedBuilder
public static PackedLongValues.Builder deltaPackedBuilder(int pageSize, float acceptableOverheadRatio)
Return a newPackedLongValues.Builderthat will compress efficiently integers that are close to each other.
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deltaPackedBuilder
public static PackedLongValues.Builder deltaPackedBuilder(float acceptableOverheadRatio)
- See Also:
deltaPackedBuilder(int, float)
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monotonicBuilder
public static PackedLongValues.Builder monotonicBuilder(int pageSize, float acceptableOverheadRatio)
Return a newPackedLongValues.Builderthat will compress efficiently integers that would be a monotonic function of their index.
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monotonicBuilder
public static PackedLongValues.Builder monotonicBuilder(float acceptableOverheadRatio)
- See Also:
monotonicBuilder(int, float)
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size
public final long size()
Get the number of values in this array.
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get
public final long get(long index)
Description copied from class:LongValuesGet value atindex.- Specified by:
getin classLongValues
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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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iterator
public PackedLongValues.Iterator iterator()
Return an iterator over the values of this array.
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