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Code Issues Releases Wiki Activity

core: add shortcut via hash in EqualsUtil

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Return false as soon as the hashed value does not match. This is
sound, since every class that implements equals(Object) should also
implement hashCode().
This commit is contained in:
Florian Schmaus 2020-04-13 20:01:20 +02:00
parent 4f609b855c
commit c49999b933
1 changed files with 7 additions and 1 deletions
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8
smack-core/src/main/java/org/jivesoftware/smack/util/EqualsUtil.java
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@ -1,6 +1,6 @@
/** /**
* *
* Copyright 2019 Florian Schmaus. * Copyright 2019-2020 Florian Schmaus.
* *
* Licensed under the Apache License, Version 2.0 (the "License"); * Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License. * you may not use this file except in compliance with the License.
@ -34,6 +34,12 @@ public final class EqualsUtil {
return false; return false;
} }
int thisHashCode = thisObject.hashCode();
int otherHashCode = other.hashCode();
if (thisHashCode != otherHashCode) {
return false;
}
EqualsUtil.Builder equalsBuilder = new EqualsUtil.Builder(); EqualsUtil.Builder equalsBuilder = new EqualsUtil.Builder();
equalsComperator.compare(equalsBuilder, thisObjectClass.cast(other)); equalsComperator.compare(equalsBuilder, thisObjectClass.cast(other));