Examples with Get com.scalar.db.api.Get used on opensource projects

Example 46 with Get

use of com.scalar.db.api.Get in project scalardb by scalar-labs.

the class DistributedTransactionServiceWithConsensusCommitWithExtraWriteIntegrationTest method commit_WriteSkewOnNonExistingRecordsWithSerializableWithExtraWrite_OneShouldCommitTheOtherShouldThrowCommitConflictException.

private void commit_WriteSkewOnNonExistingRecordsWithSerializableWithExtraWrite_OneShouldCommitTheOtherShouldThrowCommitConflictException(String table1, String table2) throws TransactionException {
    // Arrange
    // no records
    // Act
    GrpcTransaction transaction1 = manager.start();
    GrpcTransaction transaction2 = manager.start();
    Get get1_1 = prepareGet(0, 1, table2);
    Optional<Result> result1 = transaction1.get(get1_1);
    Get get1_2 = prepareGet(0, 0, table1);
    transaction1.get(get1_2);
    int current1 = 0;
    Get get2_1 = prepareGet(0, 0, table1);
    Optional<Result> result2 = transaction2.get(get2_1);
    Get get2_2 = prepareGet(0, 1, table2);
    transaction2.get(get2_2);
    int current2 = 0;
    Put put1 = preparePut(0, 0, table1).withValue(BALANCE, current1 + 1);
    transaction1.put(put1);
    Put put2 = preparePut(0, 1, table2).withValue(BALANCE, current2 + 1);
    transaction2.put(put2);
    Throwable thrown1 = catchThrowable(transaction1::commit);
    Throwable thrown2 = catchThrowable(transaction2::commit);
    // Assert
    assertThat(result1.isPresent()).isFalse();
    assertThat(result2.isPresent()).isFalse();
    GrpcTransaction transaction = manager.start();
    result1 = transaction.get(get1_1);
    result2 = transaction.get(get2_1);
    transaction.commit();
    assertThat(result1.isPresent()).isFalse();
    assertThat(result2).isPresent();
    assertThat(getBalance(result2.get())).isEqualTo(1);
    assertThat(thrown1).doesNotThrowAnyException();
    assertThat(thrown2).isInstanceOf(CommitConflictException.class);
}

Example 47 with Get

use of com.scalar.db.api.Get in project scalardb by scalar-labs.

the class DistributedTransactionServiceWithJdbcTransactionIntegrationTest method commit_DeleteGivenForExistingAfterRead_ShouldDeleteRecord.

@Test
public void commit_DeleteGivenForExistingAfterRead_ShouldDeleteRecord() throws TransactionException {
    // Arrange
    populateRecords();
    Get get = prepareGet(0, 0, NAMESPACE, TABLE);
    Delete delete = prepareDelete(0, 0, NAMESPACE, TABLE);
    GrpcTransaction transaction = manager.start();
    // Act
    Optional<Result> result = transaction.get(get);
    transaction.delete(delete);
    transaction.commit();
    // Assert
    assertThat(result.isPresent()).isTrue();
    GrpcTransaction another = manager.start();
    Optional<Result> result1 = another.get(get);
    another.commit();
    assertThat(result1.isPresent()).isFalse();
}

Example 48 with Get

use of com.scalar.db.api.Get in project scalardb by scalar-labs.

the class DistributedTransactionServiceWithJdbcTransactionIntegrationTest method get_GetGivenForNonExisting_ShouldReturnEmpty.

@Test
public void get_GetGivenForNonExisting_ShouldReturnEmpty() throws TransactionException {
    // Arrange
    populateRecords();
    GrpcTransaction transaction = manager.start();
    Get get = prepareGet(0, 4, NAMESPACE, TABLE);
    // Act
    Optional<Result> result = transaction.get(get);
    transaction.commit();
    // Assert
    assertThat(result.isPresent()).isFalse();
}

Example 49 with Get

use of com.scalar.db.api.Get in project scalardb by scalar-labs.

the class DistributedTransactionServiceWithJdbcTransactionIntegrationTest method putAndCommit_GetsAndPutsGiven_ShouldCommitProperly.

@Test
public void putAndCommit_GetsAndPutsGiven_ShouldCommitProperly() throws TransactionException {
    // Arrange
    populateRecords();
    List<Get> gets = prepareGets(NAMESPACE, TABLE);
    int amount = 100;
    int fromBalance = INITIAL_BALANCE - amount;
    int toBalance = INITIAL_BALANCE + amount;
    int from = 0;
    int to = NUM_TYPES;
    // Act
    prepareTransfer(from, to, amount).commit();
    // Assert
    GrpcTransaction another = null;
    try {
        another = manager.start();
        Optional<Result> fromResult = another.get(gets.get(from));
        assertThat(fromResult).isPresent();
        assertThat(getBalance(fromResult.get())).isEqualTo(fromBalance);
        Optional<Result> toResult = another.get(gets.get(to));
        assertThat(toResult).isPresent();
        assertThat(getBalance(toResult.get())).isEqualTo(toBalance);
    } finally {
        if (another != null) {
            another.commit();
        }
    }
}

Example 50 with Get

use of com.scalar.db.api.Get in project scalardb by scalar-labs.

the class DistributedTransactionServiceWithConsensusCommitIntegrationTest method commit_NonConflictingDeletesGivenForExisting_ShouldCommitBoth.

private void commit_NonConflictingDeletesGivenForExisting_ShouldCommitBoth(String table1, String table2) throws TransactionException {
    // Arrange
    boolean differentTables = !table1.equals(table2);
    int account1 = 0;
    int account2 = NUM_TYPES;
    int account3 = NUM_TYPES * 2;
    int account4 = NUM_TYPES * 3;
    populateRecords(table1);
    if (differentTables) {
        populateRecords(table2);
    }
    // Act
    GrpcTransaction transaction = prepareDeletes(account1, table1, account2, table2);
    assertThatCode(() -> prepareDeletes(account3, table2, account4, table1).commit()).doesNotThrowAnyException();
    assertThatCode(transaction::commit).doesNotThrowAnyException();
    // Assert
    List<Get> gets1 = prepareGets(table1);
    List<Get> gets2 = differentTables ? prepareGets(table2) : gets1;
    GrpcTransaction another = manager.start();
    assertThat(another.get(gets1.get(account1)).isPresent()).isFalse();
    assertThat(another.get(gets2.get(account2)).isPresent()).isFalse();
    assertThat(another.get(gets2.get(account3)).isPresent()).isFalse();
    assertThat(another.get(gets1.get(account4)).isPresent()).isFalse();
    another.commit();
}