Enable Java 8 language features (#78)

Closes #65 Signed-off-by: Chris Narkiewicz <hello@ezaquarii.com>
stateless4j · Sep 13, 2019 · 4d9b9dd · 4d9b9dd
1 parent c1815d7
commit 4d9b9dd
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Showing 11 changed files with 12 additions and 3 deletions.
diff --git a/pom.xml b/pom.xml
@@ -106,8 +106,8 @@
                 <artifactId>maven-compiler-plugin</artifactId>
                 <version>3.8.1</version>
                 <configuration>
-                    <source>1.7</source>
-                    <target>1.7</target>
+                    <source>1.8</source>
+                    <target>1.8</target>
                 </configuration>
             </plugin>
             <plugin>

diff --git a/src/main/java/com/github/oxo42/stateless4j/delegates/Action.java b/src/main/java/com/github/oxo42/stateless4j/delegates/Action.java
@@ -3,6 +3,7 @@
 /**
  * Represents an operation that accepts no input arguments and returns no result.
  */
+@FunctionalInterface
 public interface Action {
 
     /**

diff --git a/src/main/java/com/github/oxo42/stateless4j/delegates/Action1.java b/src/main/java/com/github/oxo42/stateless4j/delegates/Action1.java
@@ -5,6 +5,7 @@
  *
  * @param <T> The type of the input to the operation
  */
+@FunctionalInterface
 public interface Action1<T> {
 
     /**

diff --git a/src/main/java/com/github/oxo42/stateless4j/delegates/Action2.java b/src/main/java/com/github/oxo42/stateless4j/delegates/Action2.java
@@ -6,6 +6,7 @@
  * @param <T>  The type of the input
  * @param <T1> The type of the input
  */
+@FunctionalInterface
 public interface Action2<T, T1> {
 
     /**

diff --git a/src/main/java/com/github/oxo42/stateless4j/delegates/Action3.java b/src/main/java/com/github/oxo42/stateless4j/delegates/Action3.java
@@ -7,6 +7,7 @@
  * @param <T1> The type of the input to the operation
  * @param <T2> The type of the input to the operation
  */
+@FunctionalInterface
 public interface Action3<T, T1, T2> {
 
     /**

diff --git a/src/main/java/com/github/oxo42/stateless4j/delegates/Action4.java b/src/main/java/com/github/oxo42/stateless4j/delegates/Action4.java
@@ -8,6 +8,7 @@
  * @param <T2> The type of the input to the operation
  * @param <T3> The type of the input to the operation
  */
+@FunctionalInterface
 public interface Action4<T, T1, T2, T3> {
 
     /**

diff --git a/src/main/java/com/github/oxo42/stateless4j/delegates/Func.java b/src/main/java/com/github/oxo42/stateless4j/delegates/Func.java
@@ -5,6 +5,7 @@
  *
  * @param <R> Result type
  */
+@FunctionalInterface
 public interface Func<R> {
 
     /**

diff --git a/src/main/java/com/github/oxo42/stateless4j/delegates/Func2.java b/src/main/java/com/github/oxo42/stateless4j/delegates/Func2.java
@@ -6,6 +6,7 @@
  * @param <T1> Input argument type
  * @param <R>  Result type
  */
+@FunctionalInterface
 public interface Func2<T1, R> {
 
     /**

diff --git a/src/main/java/com/github/oxo42/stateless4j/delegates/Func3.java b/src/main/java/com/github/oxo42/stateless4j/delegates/Func3.java
@@ -7,6 +7,7 @@
  * @param <T2> Input argument type
  * @param <R>  Result type
  */
+@FunctionalInterface
 public interface Func3<T1, T2, R> {
 
     /**

diff --git a/src/main/java/com/github/oxo42/stateless4j/delegates/Func4.java b/src/main/java/com/github/oxo42/stateless4j/delegates/Func4.java
@@ -8,6 +8,7 @@
  * @param <T3> Input argument type
  * @param <R>  Result type
  */
+@FunctionalInterface
 public interface Func4<T1, T2, T3, R> {
 
     /**

diff --git a/src/main/java/com/github/oxo42/stateless4j/delegates/FuncBoolean.java b/src/main/java/com/github/oxo42/stateless4j/delegates/FuncBoolean.java
@@ -1,6 +1,6 @@
 package com.github.oxo42.stateless4j.delegates;
 
+@FunctionalInterface
 public interface FuncBoolean {
-
     boolean call();
 }