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Diffstat (limited to 'website/features/Delegate.html')
| -rw-r--r-- | website/features/Delegate.html | 23 |
1 files changed, 17 insertions, 6 deletions
diff --git a/website/features/Delegate.html b/website/features/Delegate.html index 52b1035d..99f8a559 100644 --- a/website/features/Delegate.html +++ b/website/features/Delegate.html @@ -20,12 +20,21 @@ </p> <p> Lombok delegates all <code>public</code> methods of the field's type, as well as those of its supertype except for all methods declared - in <code>java.lang.Object</code>. You can provide a specific implementation for a method by providing you own implementation, lombok will not - generate delegate methods for those already declared in the class. + in <code>java.lang.Object</code>. </p> <p> - You can pass any number of classes into the <code>@Delegate</code> annotation. If you do that, then lombok will delegate all <code>public</code> - methods in those types (and their supertypes, except <code>java.lang.Object</code>) instead of looking at the field's type. + You can pass any number of classes into the <code>@Delegate</code> annotation's <code>types</code> parameter. + If you do that, then lombok will delegate all <code>public</code> methods in those types (and their supertypes, except + <code>java.lang.Object</code>) instead of looking at the field's type. + </p> + <p> + All public non-Object methods that are part of the field's type (or, if you used <code>types</code> parameter, the methods of those types) are + copied, whether or not you also wrote implementations for those methods. That would thus result in duplicate method errors. You can avoid these + by using the <code>@Delegate(excludes=SomeType.class)</code> parameter to exclude all public methods in the excluded type(s), and their supertypes. + </p> + <p> + To have very precise control over what is delegated and what isn't, write private inner interfaces with method signatures, then specify these + private inner interfaces as types in <code>@Delegate(types=PrivateInnerInterfaceWithIncludesList.class, excludes=SameForExcludes.class)</code>. </p> </div> <div class="snippets"> @@ -43,12 +52,14 @@ <div class="overview"> <h3>Small print</h3><div class="smallprint"> <p> - When passing classes to the annotation, these cannot contain generics. This is a limitation of java that lombok cannot work around. + When passing classes to the annotation's <code>types</code> or <code>excludes<code> parameter, you cannot include generics. + This is a limitation of java. Use private inner interfaces or classes that extend the intended type including the + generics parameter to work around this problem. </p> <p> When passing classes to the annotation, these classes do not need to be supertypes of the field. See the example. </p> - <div> + <div> </div> <div class="footer"> <a href="index.html">Back to features</a> | <a href="val.html">Previous feature (val)</a> | <a href="onX.html">Next feature (onMethod=,onParameter=,onConstructor=)</a><br /> |