added fucntions for the grapheneapigenerator

app/src/main/java/cy/agorise/crystalwallet/apigenerator/GrapheneApiGenerator.java

@@ -1,8 +1,60 @@
 package cy.agorise.crystalwallet.apigenerator;
 
+import java.util.List;
+
+import cy.agorise.crystalwallet.models.GrapheneAccount;
+import cy.agorise.graphenej.models.HistoricalTransfer;
+
 /**
  * Created by henry on 26/9/2017.
  */
 
 public class GrapheneApiGenerator {
+
+    /**
+     * Retrieves the data of an account searching by it's id
+     *
+     * @param accountId The accountId to retrieve
+     * @return The Account properties retrieved from the net, or null if fails
+     */
+    public GrapheneAccount getAccountById(String accountId){
+        //TODO implement
+        return null;
+    }
+
+    /**
+     * Gets the account ID from an owner or active key
+     *
+     * @param address The address to retrieve
+     * @return The id of the account, of null
+     */
+    public String getAccountByOwnerOrActiveAddress(String address){
+        //TODO implement
+        return null;
+    }
+
+    /**
+     * Return the Transaction for an Account
+     *
+     * @param accountId The account id to search
+     * @param start The start index of the transaction list
+     * @param stop The stop index of the transaction list
+     * @param limit the maximun transactions to retrieve
+     * @return The list of trnsaction of the account, or null if the call fail
+     */
+    public List<HistoricalTransfer> getAccountTransaction(String accountId, int start, int stop, int limit){
+        //TODO implement
+        return null;
+    }
+
+    /**
+     * Returns if an Account Name is avaible to be used for a new account
+     *
+     * @param accountName The account Name to find
+     * @return If the account name isn't used in any bitshares account
+     */
+    public boolean isAccountNameAvaible(String accountName){
+        //TODO implement
+        return false;
+    }
 }