add IIndexHandler.set(int value, boolean allowDecrement)

java/com/samourai/wallet/client/indexHandler/AbstractIndexHandler.java

@@ -38,7 +38,7 @@ public abstract class AbstractIndexHandler implements IIndexHandler {
   @Override
   public synchronized void confirmUnconfirmed(final int confirmed) {
     if (confirmed >= get()) {
-      set(confirmed + 1);
+      set(confirmed + 1, false);
     }
 
     Iterator<Integer> it = unconfirmedIndexs.iterator();
@@ -63,4 +63,14 @@ public abstract class AbstractIndexHandler implements IIndexHandler {
   public synchronized void cancelUnconfirmed(int unconfirmed) {
     unconfirmedIndexs.remove(unconfirmed);
   }
+
+  @Override
+  public void set(int value, boolean allowDecrement) {
+    if (!allowDecrement && value <= get()) {
+      return; // deny decrement
+    }
+    set(value);
+  }
+
+  protected abstract void set(int value);
 }

java/com/samourai/wallet/client/indexHandler/IIndexHandler.java

@@ -7,7 +7,7 @@ public interface IIndexHandler {
 
   int get();
 
-  void set(int value);
+  void set(int value, boolean allowDecrement);
 
   int getAndIncrementUnconfirmed();
 

java/com/samourai/wallet/client/indexHandler/MemoryIndexHandler.java

@@ -25,7 +25,7 @@ public class MemoryIndexHandler extends AbstractIndexHandler {
   }
 
   @Override
-  public synchronized void set(int value) {
+  protected synchronized void set(int value) {
     index = value;
   }
 }

pom.xml

@@ -3,7 +3,7 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>io.samourai.code.wallet</groupId>
 	<artifactId>extlibj</artifactId>
-	<version>0.0.25</version>
+	<version>0.0.26-SNAPSHOT</version>
 	<name>extlibj</name>
 	<properties>
 		<maven.compiler.source>1.6</maven.compiler.source>

src/test/java/com/samourai/wallet/send/provider/SimpleUtxoProvider.java

@@ -46,8 +46,8 @@ public class SimpleUtxoProvider extends SimpleUtxoKeyProvider implements UtxoPro
   }
 
   public void clear() {
-    indexHandler.set(0);
-    indexChangeHandler.set(0);
+    indexHandler.set(0, true);
+    indexChangeHandler.set(0, true);
 
     // clear utxos
     nbUtxos=0;
@@ -58,8 +58,8 @@ public class SimpleUtxoProvider extends SimpleUtxoKeyProvider implements UtxoPro
     // reset indexs
     for (WhirlpoolAccount account : WhirlpoolAccount.values()) {
       for (AddressType addressType : account.getAddressTypes()) {
-        walletsByAccount.get(account).get(addressType).getIndexHandler().set(0);
-        walletsByAccount.get(account).get(addressType).getIndexChangeHandler().set(0);
+        walletsByAccount.get(account).get(addressType).getIndexHandler().set(0, true);
+        walletsByAccount.get(account).get(addressType).getIndexChangeHandler().set(0, true);
       }
     }
   }