Implemented "isIn" kotlin extension

changelog.md

@@ -1,5 +1,5 @@
 ### Next version
-* Implemented "in" conditions so you can now do e.g. `subscriptionModel.subscribe("id", OccurrentSubscriptionFilter.filter(Filter.streamVersion(Condition.in(12L, 14L))`
+* Implemented "in" conditions so you can now do e.g. `subscriptionModel.subscribe("id", OccurrentSubscriptionFilter.filter(Filter.streamVersion(Condition.in(12L, 14L))`. There's also a Kotlin extension function, `isIn`, which can be imported from `org.occurrent.condition.isIn`.
 
 ### 0.19.6 (2024-10-11)
 * Fixed so that inserting events with "any" WriteCondition never fails even if more than two threads are writing events to the same stream at the same time. (Fixed in MongoEventStore and SpringMongoEventStore)   

common/filter/pom.xml

@@ -15,7 +15,8 @@
   ~ limitations under the License.
   -->
 
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <parent>
         <artifactId>common</artifactId>
         <groupId>org.occurrent</groupId>
@@ -26,12 +27,63 @@
     <artifactId>filter</artifactId>
 
     <dependencies>
+        <dependency>
+            <groupId>org.jetbrains.kotlin</groupId>
+            <artifactId>kotlin-stdlib</artifactId>
+            <optional>true</optional>
+        </dependency>
         <dependency>
             <groupId>org.occurrent</groupId>
             <artifactId>cloudevents-extension</artifactId>
             <version>0.19.7-SNAPSHOT</version>
         </dependency>
     </dependencies>
 
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.jetbrains.kotlin</groupId>
+                <artifactId>kotlin-maven-plugin</artifactId>
+                <version>${kotlin.version}</version>
+                <executions>
+                    <execution>
+                        <id>compile</id>
+                        <phase>process-sources</phase>
+                        <goals>
+                            <goal>compile</goal>
+                        </goals>
+                        <configuration>
+                            <sourceDirs>
+                                <source>src/main/java</source>
+                                <source>src/main/kotlin</source>
+                                <source>src/main/resources</source>
+                            </sourceDirs>
+                        </configuration>
+                    </execution>
+                    <execution>
+                        <id>test-compile</id>
+                        <phase>test-compile</phase>
+                        <goals>
+                            <goal>test-compile</goal>
+                        </goals>
+                        <configuration>
+                            <sourceDirs>
+                                <source>src/test/java</source>
+                                <source>src/test/kotlin</source>
+                                <source>src/test/resources</source>
+                            </sourceDirs>
+                        </configuration>
+                    </execution>
+                </executions>
+                <configuration>
+                    <args>
+                        <arg>-Xjsr305=strict</arg>
+                    </args>
+                    <jvmTarget>17</jvmTarget>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
 
 </project>

common/filter/src/main/kotlin/org/occurrent/condition/ConditionExtensions.kt

@@ -0,0 +1,21 @@
+/*
+ *
+ *  Copyright 2024 Johan Haleby
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *         http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+package org.occurrent.condition
+
+fun <T> isIn(values: Collection<T>): Condition<T> = Condition.`in`(values)
+fun <T> isIn(value: T, vararg moreValues: T): Condition<T> = Condition.`in`(value, *moreValues)