progressive update of transaction list in DB, stop after 100 matches

[mobile-ledger.git] / app / src / main / java / net / ktnx / mobileledger / model / LedgerTransaction.java

diff --git a/app/src/main/java/net/ktnx/mobileledger/model/LedgerTransaction.java b/app/src/main/java/net/ktnx/mobileledger/model/LedgerTransaction.java
index c4127ab81641eaf679cc91efd7074fddecb0c18c..adb45fb93a857dae34a1c09c53a3477b8e6bd07b 100644 (file)
--- a/app/src/main/java/net/ktnx/mobileledger/model/LedgerTransaction.java
+++ b/app/src/main/java/net/ktnx/mobileledger/model/LedgerTransaction.java
@@ -19,6 +19,7 @@ package net.ktnx.mobileledger.model;
 
 import android.database.Cursor;
 import android.database.sqlite.SQLiteDatabase;
+import android.util.Log;
 
 import net.ktnx.mobileledger.utils.Digest;
 
@@ -131,6 +132,17 @@ public class LedgerTransaction {
                     String.format("Unable to get instance of %s digest", DIGEST_TYPE), e);
         }
     }
+    public boolean existsInDb(SQLiteDatabase db) {
+        fillDataHash();
+        try (Cursor c = db
+                .rawQuery("SELECT 1 from transactions where data_hash = ?", new String[]{dataHash}))
+        {
+            boolean result = c.moveToFirst();
+            Log.d("transactions", String.format("Transaction %d (%s) %s", id, dataHash,
+                    result ? "already present" : "not present"));
+            return result;
+        }
+    }
     public void loadData(SQLiteDatabase db) {
         if (dataLoaded) return;