Get balance for operator account more easily

hiero-enterprise-base/src/main/java/com/openelements/hiero/base/AccountClient.java

@@ -90,4 +90,13 @@ default Hbar getAccountBalance(@NonNull String accountId) throws HieroException
         Objects.requireNonNull(accountId, "newAccountId must not be null");
         return getAccountBalance(AccountId.fromString(accountId));
     }
+
+    /**
+     * Returns the balance of the operator account.
+     *
+     * @return the balance of the operator account
+     * @throws HieroException if the balance could not be retrieved
+     */
+    @NonNull
+    Hbar getOperatorAccountBalance() throws HieroException;
 }

hiero-enterprise-base/src/main/java/com/openelements/hiero/base/implementation/AccountClientImpl.java

@@ -1,9 +1,10 @@
 package com.openelements.hiero.base.implementation;
+
 import com.hedera.hashgraph.sdk.AccountId;
 import com.hedera.hashgraph.sdk.Hbar;
-import com.openelements.hiero.base.data.Account;
 import com.openelements.hiero.base.AccountClient;
 import com.openelements.hiero.base.HieroException;
+import com.openelements.hiero.base.data.Account;
 import com.openelements.hiero.base.protocol.AccountBalanceRequest;
 import com.openelements.hiero.base.protocol.AccountBalanceResponse;
 import com.openelements.hiero.base.protocol.AccountCreateRequest;
@@ -27,11 +28,11 @@ public Account createAccount(@NonNull Hbar initialBalance) throws HieroException
         if (initialBalance == null) {
             throw new NullPointerException("initialBalance must not be null");
         }
-        
+
         if (initialBalance.toTinybars() < 0) {
             throw new HieroException("Invalid initial balance: must be non-negative");
         }
-        
+
         try {
             final AccountCreateRequest request = AccountCreateRequest.of(initialBalance);
             final AccountCreateResult result = client.executeAccountCreateTransaction(request);
@@ -40,7 +41,7 @@ public Account createAccount(@NonNull Hbar initialBalance) throws HieroException
             throw new HieroException("Error while creating Account", e);
         }
     }
-    
+
 
     @Override
     public void deleteAccount(@NonNull Account account) throws HieroException {
@@ -61,4 +62,9 @@ public Hbar getAccountBalance(@NonNull AccountId account) throws HieroException
         final AccountBalanceResponse response = client.executeAccountBalanceQuery(request);
         return response.hbars();
     }
+
+    @Override
+    public @NonNull Hbar getOperatorAccountBalance() throws HieroException {
+        return getAccountBalance(client.getOperatorAccountId());
+    }
 }

hiero-enterprise-base/src/main/java/com/openelements/hiero/base/implementation/ProtocolLayerClientImpl.java

@@ -5,6 +5,7 @@
 import com.hedera.hashgraph.sdk.AccountBalanceQuery;
 import com.hedera.hashgraph.sdk.AccountCreateTransaction;
 import com.hedera.hashgraph.sdk.AccountDeleteTransaction;
+import com.hedera.hashgraph.sdk.AccountId;
 import com.hedera.hashgraph.sdk.ContractCreateTransaction;
 import com.hedera.hashgraph.sdk.ContractDeleteTransaction;
 import com.hedera.hashgraph.sdk.ContractExecuteTransaction;
@@ -573,4 +574,9 @@ public Runnable addTransactionListener(@NonNull TransactionListener listener) {
         listeners.add(listener);
         return () -> listeners.remove(listener);
     }
+
+    @Override
+    public AccountId getOperatorAccountId() {
+        return hieroContext.getOperatorAccount().accountId();
+    }
 }

hiero-enterprise-base/src/main/java/com/openelements/hiero/base/protocol/ProtocolLayerClient.java

@@ -1,5 +1,6 @@
 package com.openelements.hiero.base.protocol;
 
+import com.hedera.hashgraph.sdk.AccountId;
 import com.openelements.hiero.base.HieroException;
 import org.jspecify.annotations.NonNull;
 
@@ -226,4 +227,5 @@ TopicSubmitMessageResult executeTopicMessageSubmitTransaction(@NonNull TopicSubm
     @NonNull
     Runnable addTransactionListener(@NonNull TransactionListener listener);
 
+    AccountId getOperatorAccountId();
 }