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https://issues.apache.org/jira/browse/LANG-601?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Wooten updated LANG-601:
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Attachment: commons-lang-builder.patch
The attached patch was created with Eclipse. The patch includes a new Builder
interface in the builder package, and also updates all of the *Builder classes
to implement this new interface. Additional test cases were added to test that
the build() methods return the appropriate results.
> Add Builder Interface / Update Builders to Implement It
> -------------------------------------------------------
>
> Key: LANG-601
> URL: https://issues.apache.org/jira/browse/LANG-601
> Project: Commons Lang
> Issue Type: New Feature
> Components: lang.builder.*
> Affects Versions: 3.0
> Environment: Java 1.5+
> Reporter: Michael Wooten
> Priority: Minor
> Fix For: 3.0
>
> Attachments: commons-lang-builder.patch
>
> Original Estimate: 2h
> Remaining Estimate: 2h
>
> I propose the addition of a Builder<T> interface that can be used to identify
> a class as a builder of a concrete type of object. The interface would
> provide the following method:
> T build();
> There are many examples of classes that define a build() method, including
> BasicThreadFactory.Builder. By implementing this interface, the classes would
> explicitly indicate the object type they are capable of building.
> Furthermore, the interface can provide documentation on the best approach to
> implementing builder classes.
> I additionally suggest that the existing builder classes (CompareToBuilder,
> EqualsBuilder, HashCodeBuilder, and ToStringBuilder) implement this
> interface. No other changes would need to be made, since the class's build()
> method would only need to return the result of the current "build" method for
> each of those classes.
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