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improve bloom HashCode operation

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This commit is contained in:
tursom 2023-04-25 11:38:44 +08:00
parent df588d7275
commit 6527759d1e
1 changed files with 8 additions and 4 deletions
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12
util/bloom/Bloom.go
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@ -20,9 +20,10 @@ var (
type ( type (
Bloom struct { Bloom struct {
lang.BaseObject lang.BaseObject
m lang.UInt8Array m lang.UInt8Array
k uint k uint
c uint c uint
hashCode int32
} }
) )
@ -128,7 +129,10 @@ func (b *Bloom) Equals(t lang.Object) bool {
} }
func (b *Bloom) HashCode() int32 { func (b *Bloom) HashCode() int32 {
return int32(murmur3.Sum32(b.m.Bytes())) if b.hashCode == 0 {
b.hashCode = int32(murmur3.Sum32(b.m.Bytes()))
}
return b.hashCode
} }
func (b *Bloom) Merge(t *Bloom) bool { func (b *Bloom) Merge(t *Bloom) bool {