Adapting for Ethereum as a library style:

+ API for submit transaction

ethereumj-core/src/main/java/org/ethereum/facade/Ethereum.java

@@ -1,12 +1,14 @@
 package org.ethereum.facade;
 
 import org.ethereum.core.Block;
+import org.ethereum.core.Transaction;
 import org.ethereum.listener.EthereumListener;
 import org.ethereum.net.client.ClientPeer;
 import org.ethereum.net.client.PeerData;
 
 import java.net.InetAddress;
 import java.util.Set;
+import java.util.concurrent.Future;
 
 /**
  * www.ethereumJ.com
@@ -77,6 +79,36 @@ public interface Ethereum {
 
     public void close();
 
+    /**
+     * Factory for general transaction
+     *
+     *
+     * @param nonce - account nonce, based on number of transaction submited by
+     *                this account
+     * @param gasPrice - gas price bid by miner , the user ask can be based on
+     *                   lastr submited block
+     * @param gas - the quantity of gas requested for the transaction
+     * @param recieveAddress - the target address of the transaction
+     * @param value - the ether value of the transaction
+     * @param data - can be init procedure for creational transaction,
+     *               also msg data for invoke transaction for only value
+     *               transactions this one is empty.
+     * @return newly created transaction
+     */
+    public Transaction createTransaction(byte[] nonce, byte[] gasPrice, byte[] gas,
+                                         byte[] recieveAddress, byte[] value, byte[] data );
+
+
+    /**
+     *
+     * @param transaction - submit transaction to the net, return
+     *                      option to wait for net return this transaction
+     *                      as approved
+     * @return
+     */
+    public Future<Transaction> submitTransaction(Transaction transaction);
+
+
 
 //  1.   WorldManager.getInstance().getWallet();
 //  2.   // is blockchain still loading - if buffer is not empty

ethereumj-core/src/main/java/org/ethereum/facade/EthereumImpl.java

@@ -3,11 +3,15 @@ package org.ethereum.facade;
 import java.net.InetAddress;
 import java.util.HashSet;
 import java.util.Set;
+import java.util.concurrent.Future;
 
+import org.ethereum.core.Transaction;
 import org.ethereum.listener.EthereumListener;
 import org.ethereum.manager.WorldManager;
 import org.ethereum.net.client.ClientPeer;
 import org.ethereum.net.client.PeerData;
+import org.ethereum.net.submit.TransactionExecutor;
+import org.ethereum.net.submit.TransactionTask;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -161,6 +165,27 @@ public class EthereumImpl implements Ethereum {
     }
 
 
+    @Override
+    public Transaction createTransaction(byte[] nonce, byte[] gasPrice, byte[] gas,
+                                      byte[] recieveAddress, byte[] value, byte[] data ){
+
+        Transaction tx = new Transaction(nonce, gasPrice, gas,
+                recieveAddress, value, data);
+
+        return tx;
+    }
+
+
+    @Override
+    public Future<Transaction> submitTransaction(Transaction transaction){
+
+        TransactionTask transactionTask = new TransactionTask(transaction);
+        Future<Transaction> future = TransactionExecutor.instance.submitTransaction(transactionTask);
+
+        return future;
+    }
+
+
     // public Future<Transaction> submitTransaction() -- wait for approve (like in wallet dialog)
 
 }

ethereumj-studio/src/main/java/org/ethereum/gui/DialogWorker.java

@@ -35,8 +35,8 @@ public class DialogWorker extends SwingWorker<Transaction, Object> {
 
     @Override
     protected Transaction doInBackground() throws Exception {
-        TransactionTask transactionTask = new TransactionTask(tx);
-        Future<Transaction> future = TransactionExecutor.instance.submitTransaction(transactionTask);
+
+        Future<Transaction> future  = UIEthereumManager.ethereum.submitTransaction(tx);
         dialog.infoStatusMsg("Transaction sent to the network, waiting for approve");
 
         try {