Package org.apache.lucene.util
Class LongsRef
java.lang.Object
org.apache.lucene.util.LongsRef
- All Implemented Interfaces:
Cloneable,Comparable<LongsRef>
Represents long[], as a slice (offset + length) into an existing long[]. The
longs
member should never be null; use EMPTY_LONGS if necessary.- NOTE: This API is for internal purposes only and might change in incompatible ways in the next release.
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Field Summary
FieldsModifier and TypeFieldDescriptionstatic final long[]An empty long array for convenienceintLength of used longs.long[]The contents of the LongsRef.intOffset of first valid long. -
Constructor Summary
ConstructorsConstructorDescriptionLongsRef()Create a LongsRef withEMPTY_LONGSLongsRef(int capacity) Create a LongsRef pointing to a new array of sizecapacity.LongsRef(long[] longs, int offset, int length) This instance will directly reference longs w/o making a copy. -
Method Summary
Modifier and TypeMethodDescriptionclone()Returns a shallow clone of this instance (the underlying longs are not copied and will be shared by both the returned object and this object.intSigned int order comparisonstatic LongsRefdeepCopyOf(LongsRef other) Creates a new LongsRef that points to a copy of the longs fromotherbooleaninthashCode()booleanisValid()Performs internal consistency checks.booleanlongsEquals(LongsRef other) toString()
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Field Details
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EMPTY_LONGS
public static final long[] EMPTY_LONGSAn empty long array for convenience -
longs
public long[] longsThe contents of the LongsRef. Should never benull. -
offset
public int offsetOffset of first valid long. -
length
public int lengthLength of used longs.
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Constructor Details
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LongsRef
public LongsRef()Create a LongsRef withEMPTY_LONGS -
LongsRef
public LongsRef(int capacity) Create a LongsRef pointing to a new array of sizecapacity. Offset and length will both be zero. -
LongsRef
public LongsRef(long[] longs, int offset, int length) This instance will directly reference longs w/o making a copy. longs should not be null
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Method Details
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clone
Returns a shallow clone of this instance (the underlying longs are not copied and will be shared by both the returned object and this object. -
hashCode
public int hashCode() -
equals
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longsEquals
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compareTo
Signed int order comparison- Specified by:
compareToin interfaceComparable<LongsRef>
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toString
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deepCopyOf
Creates a new LongsRef that points to a copy of the longs fromotherThe returned IntsRef will have a length of other.length and an offset of zero.
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isValid
public boolean isValid()Performs internal consistency checks. Always returns true (or throws IllegalStateException)
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