1 files changed, 31 insertions, 0 deletions
diff --git a/src/main/java/com/google/testing/junit/testparameterinjector/TestParameterProcessor.java b/src/main/java/com/google/testing/junit/testparameterinjector/TestParameterProcessor.java
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index 0000000..efa4951
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+++ b/src/main/java/com/google/testing/junit/testparameterinjector/TestParameterProcessor.java
@@ -0,0 +1,31 @@
+/*
+ * Copyright 2021 Google Inc.
+ *
+ * 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 com.google.testing.junit.testparameterinjector;
+
+/**
+ * Interface which allows {@link TestParameterAnnotation} annotations to run arbitrary code before
+ * and after test execution.
+ *
+ * <p>When multiple TestParameterAnnotation processors exist for a single test, they are executed in
+ * declaration order, starting with annotations defined at the class, field, method, and finally
+ * parameter level.
+ */
+interface TestParameterProcessor {
+  /** Executes code in the context of a running test statement before the statement starts. */
+  void before(Object testParameterValue);
+
+  /** Executes code in the context of a running test statement after the statement completes. */
+  void after(Object testParameterValue);
+}