Package com.atlassian.plugin.descriptors

Class ModuleDescriptors.HashCodeBuilder

java.lang.Object

com.atlassian.plugin.descriptors.ModuleDescriptors.HashCodeBuilder

Enclosing class:

ModuleDescriptors

@NotThreadSafe
public static class ModuleDescriptors.HashCodeBuilder
extends Object

Assists in implementing Object.hashCode() methods for module descriptors based on the hashCode of their complete key.

The full specification of the hashCode() contract is defined by ModuleDescriptor.hashCode()

Usage:

1. If you are using this builder to implement the hashCode() method in a module descriptor implementation:

   new ModuleDescriptors.HashCodeBuilder().descriptor(this).toHashCode();

2. If you are using this builder to calculate the hashCode of a descriptor from outside a module descriptor implementation; given a descriptor instance desc:

   new ModuleDescriptors.EqualsBuilder().descriptor(desc).toHashCode();

Since:

2.8.0

Constructor Summary

Constructors

Constructor	Description
HashCodeBuilder()

Method Summary

Modifier and Type	Method	Description
ModuleDescriptors.HashCodeBuilder	descriptor(ModuleDescriptor descriptor)	Sets the module descriptor to create a hashCode implementation for.
int	hashCode()	The computed hashCode from toHashCode() is returned due to the likelihood of bugs in mis-calling toHashCode() and the unlikeliness of it mattering what the hashCode for HashCodeBuilder itself is.
int	toHashCode()	Return the computed hashCode for this module descriptor.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Details

HashCodeBuilder

public HashCodeBuilder()

Method Details

descriptor

public ModuleDescriptors.HashCodeBuilder descriptor(ModuleDescriptor descriptor)

Sets the module descriptor to create a hashCode implementation for.

Parameters:

descriptor - the descriptor. Must not be null.

Returns:

this builder.

toHashCode

public int toHashCode()

Return the computed hashCode for this module descriptor.

Returns:

hashCode based on the hashCode of the complete key of the module descriptor.

hashCode

public int hashCode()

The computed hashCode from toHashCode() is returned due to the likelihood of bugs in mis-calling toHashCode() and the unlikeliness of it mattering what the hashCode for HashCodeBuilder itself is.

Overrides:

hashCode in class Object

Returns:

hashCode based on the complete key of the module descriptor.