added hasAccount to Economy as requested.

src/net/milkbowl/vault/economy/Economy.java

@@ -54,6 +54,16 @@ public interface Economy {
      */
     public String format(double amount);
 
+    /**
+     * Checks if this player has an account on the server yet
+     * This will always return true if the player has joined the server at least once
+     * as all major economy plugins auto-generate a player account when the player joins the server
+     * @param playerName
+     * @return if the player has an account
+     */
+    public boolean hasAccount(String playerName);
+    
+    
     /**
      * Gets balance of a player
      * @param playerName

src/net/milkbowl/vault/economy/plugins/Economy_3co.java

@@ -235,4 +235,9 @@ public class Economy_3co implements Economy {
     public boolean hasBankSupport() {
         return false;
     }
+
+    @Override
+    public boolean hasAccount(String playerName) {
+        return economy.hasAccount(plugin.getServer().getPlayer(playerName));
+    }
 }

src/net/milkbowl/vault/economy/plugins/Economy_BOSE6.java

@@ -285,4 +285,9 @@ public class Economy_BOSE6 implements Economy {
     public boolean hasBankSupport() {
         return true;
     }
+
+    @Override
+    public boolean hasAccount(String playerName) {
+        return economy.playerRegistered(playerName, false);
+    }
 }

src/net/milkbowl/vault/economy/plugins/Economy_BOSE7.java

@@ -288,4 +288,9 @@ public class Economy_BOSE7 implements Economy {
     public boolean hasBankSupport() {
         return true;
     }
+
+    @Override
+    public boolean hasAccount(String playerName) {
+        return economy.playerRegistered(playerName, false);
+    }
 }

src/net/milkbowl/vault/economy/plugins/Economy_CurrencyCore.java

@@ -201,4 +201,9 @@ public class Economy_CurrencyCore implements Economy {
     public boolean hasBankSupport() {
         return true;
     }
+
+    @Override
+    public boolean hasAccount(String playerName) {
+        return this.currency.getAccountManager().getAccount(playerName) != null;
+    }
 }

src/net/milkbowl/vault/economy/plugins/Economy_EconXP.java

@@ -201,4 +201,9 @@ public class Economy_EconXP implements Economy {
     public boolean hasBankSupport() {
         return false;
     }
+
+    @Override
+    public boolean hasAccount(String playerName) {
+        return econ.getPlayer(playerName) != null;
+    }
 }

src/net/milkbowl/vault/economy/plugins/Economy_Essentials.java

@@ -260,4 +260,9 @@ public class Economy_Essentials implements Economy {
     public boolean hasBankSupport() {
         return false;
     }
+
+    @Override
+    public boolean hasAccount(String playerName) {
+        return com.earth2me.essentials.api.Economy.playerExists(playerName);
+    }
 }

src/net/milkbowl/vault/economy/plugins/Economy_MineConomy.java

@@ -170,4 +170,9 @@ public class Economy_MineConomy implements Economy {
     public boolean hasBankSupport() {
         return false;
     }
+
+    @Override
+    public boolean hasAccount(String playerName) {
+        return Accounting.containsKey(playerName, MineConomy.accounts);
+    }
 }

src/net/milkbowl/vault/economy/plugins/Economy_MultiCurrency.java

@@ -241,4 +241,9 @@ public class Economy_MultiCurrency implements Economy {
     public boolean hasBankSupport() {
         return false;
     }
+
+    @Override
+    public boolean hasAccount(String playerName) {
+        return true;
+    }
 }

src/net/milkbowl/vault/economy/plugins/Economy_eWallet.java

@@ -177,4 +177,9 @@ public class Economy_eWallet implements Economy {
     public boolean hasBankSupport() {
         return false;
     }
+
+    @Override
+    public boolean hasAccount(String playerName) {
+        return econ.hasAccount(playerName);
+    }
 }

src/net/milkbowl/vault/economy/plugins/Economy_iConomy4.java

@@ -247,4 +247,9 @@ public class Economy_iConomy4 implements Economy {
     public boolean hasBankSupport() {
         return false;
     }
+
+    @Override
+    public boolean hasAccount(String playerName) {
+        return iConomy.getBank().hasAccount(playerName);
+    }
 }

src/net/milkbowl/vault/economy/plugins/Economy_iConomy5.java

@@ -210,4 +210,9 @@ public class Economy_iConomy5 implements Economy {
     public boolean hasBankSupport() {
         return false;
     }
+
+    @Override
+    public boolean hasAccount(String playerName) {
+        return iConomy.getAccount(playerName) != null;
+    }
 }

src/net/milkbowl/vault/economy/plugins/Economy_iConomy6.java

@@ -203,4 +203,9 @@ public class Economy_iConomy6 implements Economy {
     public boolean hasBankSupport() {
         return true;
     }
+
+    @Override
+    public boolean hasAccount(String playerName) {
+        return accounts.exists(playerName);
+    }
 }

src/net/milkbowl/vault/regions/Regions.java

@@ -25,5 +25,4 @@ public abstract class Regions {
     abstract public boolean canBuild(Player player);
     
     abstract public boolean canUse(Player player);
-    
 }