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+act #16245 receive builder works with generic messages

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UnitPFBuilder use CaseStatements as previously, because apply is cast to exact type ( not ? extends T )
PFBuilder.match working with generic messages
This commit is contained in:
tomekl007 2014-11-08 13:55:38 +01:00
parent c183989ea2
commit 7cd4a68cee
8 changed files with 289 additions and 176 deletions
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46
akka-actor/src/main/java/akka/japi/pf/Match.java
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@ -13,8 +13,8 @@ import scala.PartialFunction;
*
* @param <I> the input type, that this PartialFunction will be applied to
* @param <R> the return type, that the results of the application will have
*
* This is an EXPERIMENTAL feature and is subject to change until it has received more real world testing.
* <p>
* This is an EXPERIMENTAL feature and is subject to change until it has received more real world testing.
*/
public class Match<I, R> extends AbstractMatch<I, R> {
@ -22,13 +22,13 @@ public class Match<I, R> extends AbstractMatch<I, R> {
* Convenience function to create a {@link PFBuilder} with the first
* case statement added.
*
* @param type a type to match the argument against
* @param apply an action to apply to the argument if the type matches
* @return a builder with the case statement added
* @param type a type to match the argument against
* @param apply an action to apply to the argument if the type matches
* @return a builder with the case statement added
* @see PFBuilder#match(Class, FI.Apply)
*/
public static final <F, T, P> PFBuilder<F, T> match(final Class<P> type,
final FI.Apply<P, T> apply) {
public static <F, T, P> PFBuilder<F, T> match(final Class<? extends P> type,
final FI.Apply<? extends P, T> apply) {
return new PFBuilder<F, T>().match(type, apply);
}
@ -36,15 +36,15 @@ public class Match<I, R> extends AbstractMatch<I, R> {
* Convenience function to create a {@link PFBuilder} with the first
* case statement added.
*
* @param type a type to match the argument against
* @param predicate a predicate that will be evaluated on the argument if the type matches
* @param apply an action to apply to the argument if the type matches
* @return a builder with the case statement added
* @param type a type to match the argument against
* @param predicate a predicate that will be evaluated on the argument if the type matches
* @param apply an action to apply to the argument if the type matches
* @return a builder with the case statement added
* @see PFBuilder#match(Class, FI.TypedPredicate, FI.Apply)
*/
public static <F, T, P> PFBuilder<F, T> match(final Class<P> type,
final FI.TypedPredicate<P> predicate,
final FI.Apply<P, T> apply) {
public static <F, T, P> PFBuilder<F, T> match(final Class<? extends P> type,
final FI.TypedPredicate<? extends P> predicate,
final FI.Apply<? extends P, T> apply) {
return new PFBuilder<F, T>().match(type, predicate, apply);
}
@ -52,7 +52,7 @@ public class Match<I, R> extends AbstractMatch<I, R> {
* Convenience function to create a {@link PFBuilder} with the first
* case statement added.
*
* @param object the object to compare equals with
* @param object the object to compare equals with
* @param apply an action to apply to the argument if the object compares equal
* @return a builder with the case statement added
* @see PFBuilder#matchEquals(Object, FI.Apply)
@ -66,7 +66,7 @@ public class Match<I, R> extends AbstractMatch<I, R> {
* Convenience function to create a {@link PFBuilder} with the first
* case statement added.
*
* @param apply an action to apply to the argument
* @param apply an action to apply to the argument
* @return a builder with the case statement added
* @see PFBuilder#matchAny(FI.Apply)
*/
@ -77,8 +77,8 @@ public class Match<I, R> extends AbstractMatch<I, R> {
/**
* Create a {@link Match} from the builder.
*
* @param builder a builder representing the partial function
* @return a {@link Match} that can be reused
* @param builder a builder representing the partial function
* @return a {@link Match} that can be reused
*/
public static final <F, T> Match<F, T> create(PFBuilder<F, T> builder) {
return new Match<F, T>(builder.build());
@ -90,16 +90,16 @@ public class Match<I, R> extends AbstractMatch<I, R> {
/**
* Convenience function to make the Java code more readable.
*
* <p>
* <pre><code>
* Matcher&lt;X, Y&gt; matcher = Matcher.create(...);
*
* <p>
* Y someY = matcher.match(obj);
* </code></pre>
*
* @param i the argument to apply the match to
* @return the result of the application
* @throws MatchError if there is no match
* @param i the argument to apply the match to
* @return the result of the application
* @throws MatchError if there is no match
*/
public R match(I i) throws MatchError {
return statements.apply(i);