Netty/Common 4.1.107.Final · io.netty.util.HashingStrategy

Modifier and Type	Field and Description
public static final HashingStrategy<T>	JAVA_HASHER A `HashingStrategy` which delegates to java's `Object#hashCode()` and `Object#equals(Object)`.

Modifier and Type	Method and Description
public boolean	equals(T a, T b) Returns `true` if the arguments are equal to each other and `false` otherwise.
public int	hashCode(T obj) Generate a hash code for `obj`.

JAVA_HASHER	back to summary
public static final HashingStrategy<T> JAVA_HASHER A `HashingStrategy` which delegates to java's `Object#hashCode()` and `Object#equals(Object)`. Annotations @SuppressWarnings:rawtypes

Method Detail

equals back to summary

equals	back to summary
public boolean equals(T a, T b) Returns `true` if the arguments are equal to each other and `false` otherwise. This method has the following restrictions: reflexive - `equals(a, a)` should return true symmetric - `equals(a, b)` returns `true` if `equals(b, a)` returns `true` transitive - if `equals(a, b)` returns `true` and `equals(a, c)` returns `true` then `equals(b, c)` should also return `true` consistent - `equals(a, b)` should return the same result when called multiple times assuming `a` and `b` remain unchanged relative to the comparison criteria if `a` and `b` are both `null` then this method returns `true` if `a` is `null` and `b` is non-`null`, or `a` is non-`null` and `b` is `null` then this method returns `false`

public boolean equals(T a, T b)

Returns true if the arguments are equal to each other and false otherwise. This method has the following restrictions:

reflexive - equals(a, a) should return true
symmetric - equals(a, b) returns true if equals(b, a) returns true
transitive - if equals(a, b) returns true and equals(a, c) returns true then equals(b, c) should also return true
consistent - equals(a, b) should return the same result when called multiple times assuming a and b remain unchanged relative to the comparison criteria
if a and b are both null then this method returns true
if a is null and b is non-null, or a is non-null and b is null then this method returns false

hashCode back to summary

hashCode	back to summary
public int hashCode(T obj) Generate a hash code for `obj`. This method must obey the same relationship that `java.lang.Object#hashCode()` has with `java.lang.Object#equals(Object)`: Calling this method multiple times with the same `obj` should return the same result If `equals(Object, Object)` with parameters `a` and `b` returns `true` then the return value for this method for parameters `a` and `b` must return the same result If `equals(Object, Object)` with parameters `a` and `b` returns `false` then the return value for this method for parameters `a` and `b` does not have to return different results results. However this property is desirable. if `obj` is `null` then this method return `0`

public int hashCode(T obj)

Generate a hash code for obj.

Calling this method multiple times with the same obj should return the same result
If equals(Object, Object) with parameters a and b returns true then the return value for this method for parameters a and b must return the same result
If equals(Object, Object) with parameters a and b returns false then the return value for this method for parameters a and b does not have to return different results results. However this property is desirable.
if obj is null then this method return 0