Package io.deephaven.util.compare
Class IntComparisons
java.lang.Object
io.deephaven.util.compare.IntComparisons
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Constructor Summary
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Method Summary
Modifier and TypeMethodDescriptionstatic int
compare
(int lhs, int rhs) Compares two ints according to the following rules:QueryConstants.NULL_INT
is less than all otherint
values Otherwise, normalint
comparison logic is usedstatic boolean
eq
(int lhs, int rhs) Compare two ints for equality consistent withcompare(int, int)
; that iscompare(lhs, rhs) == 0 ⇒ eq(lhs, rhs)
andcompare(lhs, rhs) != 0 ⇒ !eq(lhs, rhs)
.static boolean
geq
(int lhs, int rhs) Logically equivalent tocompare(lhs, rhs) >= 0
.static boolean
gt
(int lhs, int rhs) Logically equivalent tocompare(lhs, rhs) > 0
.static int
hashCode
(int x) Returns a hash code for aint
value consistent witheq(int, int)
; that is,eq(x, y) ⇒ hashCode(x) == hashCode(y)
.static boolean
leq
(int lhs, int rhs) Logically equivalent tocompare(lhs, rhs) <= 0
.static boolean
lt
(int lhs, int rhs) Logically equivalent tocompare(lhs, rhs) < 0
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Constructor Details
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IntComparisons
public IntComparisons()
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Method Details
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compare
public static int compare(int lhs, int rhs) Compares two ints according to the following rules:QueryConstants.NULL_INT
is less than all otherint
values- Otherwise, normal
int
comparison logic is used
- Parameters:
lhs
- the first valuerhs
- the second value- Returns:
- the value
0
iflhs
is equal torhs
; a value less than0
iflhs
is less thanrhs
; and a value greater than0
iflhs
is greater thanrhs
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eq
public static boolean eq(int lhs, int rhs) Compare two ints for equality consistent withcompare(int, int)
; that iscompare(lhs, rhs) == 0 ⇒ eq(lhs, rhs)
andcompare(lhs, rhs) != 0 ⇒ !eq(lhs, rhs)
.Logically equivalent to
compare(lhs, rhs) == 0
.- Parameters:
lhs
- the first valuerhs
- the second value- Returns:
true
if the values are equal,false
otherwise
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hashCode
public static int hashCode(int x) Returns a hash code for aint
value consistent witheq(int, int)
; that is,eq(x, y) ⇒ hashCode(x) == hashCode(y)
.- Parameters:
x
- the value to hash- Returns:
- a hash code value for a
double
value
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gt
public static boolean gt(int lhs, int rhs) Logically equivalent tocompare(lhs, rhs) > 0
.- Parameters:
lhs
- the first valuerhs
- the second value- Returns:
true
ifflhs
is greater thanrhs
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lt
public static boolean lt(int lhs, int rhs) Logically equivalent tocompare(lhs, rhs) < 0
.- Parameters:
lhs
- the first valuerhs
- the second value- Returns:
true
ifflhs
is less thanrhs
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geq
public static boolean geq(int lhs, int rhs) Logically equivalent tocompare(lhs, rhs) >= 0
.- Parameters:
lhs
- the first valuerhs
- the second value- Returns:
true
ifflhs
is greater than or equal torhs
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leq
public static boolean leq(int lhs, int rhs) Logically equivalent tocompare(lhs, rhs) <= 0
.- Parameters:
lhs
- the first valuerhs
- the second value- Returns:
true
ifflhs
is less than or equal torhs
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