Examples of com.yahoo.omid.client.TransactionManager.beginTransaction()

Class com.yahoo.omid.client.TransactionManager

Examples of com.yahoo.omid.client.TransactionManager.beginTransaction()

com.yahoo.omid.client.TransactionManager.beginTransaction()
Starts a new transaction. This method returns an opaque {@link TransactionState} object, used by {@link TransactionalTable}'s methods for performing operations on a given transaction. @return Opaque object which identifies one transaction. @throws TransactionException

   @Test public void runTestSimple() throws Exception {
      try {
         TransactionManager tm = new TransactionManager(hbaseConf);
         TransactionalTable tt = new TransactionalTable(hbaseConf, TEST_TABLE);
         
         TransactionState t1 = tm.beginTransaction();
         LOG.info("Transaction created " + t1);
         
         byte[] row = Bytes.toBytes("test-simple");
         byte[] fam = Bytes.toBytes(TEST_FAMILY);
         byte[] col = Bytes.toBytes("testdata");

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         Put p = new Put(row);
         p.add(fam, col, data1);
         tt.put(t1, p);
         tm.tryCommit(t1);


         TransactionState tread = tm.beginTransaction();
         TransactionState t2 = tm.beginTransaction();
         p = new Put(row);
         p.add(fam, col, data2);
         tt.put(t2, p);
         tm.tryCommit(t2);

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         p.add(fam, col, data1);
         tt.put(t1, p);
         tm.tryCommit(t1);


         TransactionState tread = tm.beginTransaction();
         TransactionState t2 = tm.beginTransaction();
         p = new Put(row);
         p.add(fam, col, data2);
         tt.put(t2, p);
         tm.tryCommit(t2);

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   @Test public void runTestManyVersions() throws Exception {
      try {
         TransactionManager tm = new TransactionManager(hbaseConf);
         TransactionalTable tt = new TransactionalTable(hbaseConf, TEST_TABLE);


         TransactionState t1 = tm.beginTransaction();
         LOG.info("Transaction created " + t1);


         byte[] row = Bytes.toBytes("test-simple");
         byte[] fam = Bytes.toBytes(TEST_FAMILY);
         byte[] col = Bytes.toBytes("testdata");

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         p.add(fam, col, data1);
         tt.put(t1, p);
         tm.tryCommit(t1);


         for (int i = 0; i < 5; ++i) {
            TransactionState t2 = tm.beginTransaction();
            p = new Put(row);
            p.add(fam, col, data2);
            tt.put(t2, p);
         }
         TransactionState tread = tm.beginTransaction();

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            TransactionState t2 = tm.beginTransaction();
            p = new Put(row);
            p.add(fam, col, data2);
            tt.put(t2, p);
         }
         TransactionState tread = tm.beginTransaction();


         Get g = new Get(row).setMaxVersions(1);
         Result r = tt.get(g);
         assertTrue("Unexpected value for read: " + Bytes.toString(r.getValue(fam, col)),
               Bytes.equals(data2, r.getValue(fam, col)));

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   @Test public void runTestInterleave() throws Exception {
      try {
         TransactionManager tm = new TransactionManager(hbaseConf);
         TransactionalTable tt = new TransactionalTable(hbaseConf, TEST_TABLE);
        
         TransactionState t1 = tm.beginTransaction();
         LOG.info("Transaction created " + t1);
         
         byte[] row = Bytes.toBytes("test-interleave");
         byte[] fam = Bytes.toBytes(TEST_FAMILY);
         byte[] col = Bytes.toBytes("testdata");

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         Put p = new Put(row);
         p.add(fam, col, data1);
         tt.put(t1, p);
         tm.tryCommit(t1);


         TransactionState t2 = tm.beginTransaction();
         p = new Put(row);
         p.add(fam, col, data2);
         tt.put(t2, p);


         TransactionState tread = tm.beginTransaction();

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         TransactionState t2 = tm.beginTransaction();
         p = new Put(row);
         p.add(fam, col, data2);
         tt.put(t2, p);


         TransactionState tread = tm.beginTransaction();
         Get g = new Get(row).setMaxVersions(1);
         Result r = tt.get(tread, g);
         assertTrue("Unexpected value for SI read " + tread + ": " + Bytes.toString(r.getValue(fam, col)),
                    Bytes.equals(data1, r.getValue(fam, col)));
         tm.tryCommit(t2);

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   @Test public void runTestInterleaveScan() throws Exception {
      try {
         TransactionManager tm = new TransactionManager(hbaseConf);
         TransactionalTable tt = new TransactionalTable(hbaseConf, TEST_TABLE);
         
         TransactionState t1 = tm.beginTransaction();
         LOG.info("Transaction created " + t1);
         
         byte[] fam = Bytes.toBytes(TEST_FAMILY);
         byte[] col = Bytes.toBytes("testdata");
         byte[] data1 = Bytes.toBytes("testWrite-1");

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