1 files changed, 8 insertions, 1 deletions
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/BaseOperation.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/BaseOperation.java
index 5a3321ac8..fae59b7a4 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/BaseOperation.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/BaseOperation.java
@@ -18,17 +18,20 @@
 package org.sufficientlysecure.keychain.operations;
 
 import android.content.Context;
+import android.os.Parcelable;
 
+import org.sufficientlysecure.keychain.operations.results.OperationResult;
 import org.sufficientlysecure.keychain.pgp.PassphraseCacheInterface;
 import org.sufficientlysecure.keychain.pgp.Progressable;
 import org.sufficientlysecure.keychain.provider.ProviderHelper;
 import org.sufficientlysecure.keychain.provider.ProviderHelper.NotFoundException;
 import org.sufficientlysecure.keychain.service.PassphraseCacheService;
+import org.sufficientlysecure.keychain.service.input.CryptoInputParcel;
 import org.sufficientlysecure.keychain.util.Passphrase;
 
 import java.util.concurrent.atomic.AtomicBoolean;
 
-public abstract class BaseOperation implements PassphraseCacheInterface {
+public abstract class BaseOperation <T extends Parcelable> implements PassphraseCacheInterface {
 
     final public Context mContext;
     final public Progressable mProgressable;
@@ -73,6 +76,10 @@ public abstract class BaseOperation implements PassphraseCacheInterface {
         mCancelled = cancelled;
     }
 
+    public OperationResult execute(T input, CryptoInputParcel cryptoInput) {
+        return null;
+    }
+
     public void updateProgress(int message, int current, int total) {
         if (mProgressable != null) {
             mProgressable.setProgress(message, current, total);