Examples of eu.stratosphere.api.java.ExecutionEnvironment

eu.stratosphere.api.java.ExecutionEnvironment
The ExecutionEnviroment is the context in which a program is executed. A {@link LocalEnvironment} will cause execution in the current JVM, a{@link RemoteEnvironment} will cause execution on a remote setup.
The environment provides methods to control the job execution (such as setting the parallelism) and to interact with the outside world (data access).
Please note that the execution environment needs strong type information for the input and return types of all operations that are executed. This means that the environments needs to know that the return value of an operation is for example a Tuple of String and Integer. Because the Java compiler throws much of the generic type information away, most methods attempt to re- obtain that information using reflection. In certain cases, it may be necessary to manually supply that information to some of the methods. @see LocalEnvironment @see RemoteEnvironment

  }
  
  @Test(expected = InvalidProgramException.class)
  public void testJoinKeyMixing3() {
    
    final ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
    DataSet<Tuple5<Integer, Long, String, Long, Integer>> ds1 = env.fromCollection(emptyTupleData, tupleTypeInfo);
    DataSet<CustomType> ds2 = env.fromCollection(customTypeData);


    // should not work, incompatible types
    ds1.join(ds2)
    .where(2)
    .equalTo(

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  }
  
  @Test(expected = InvalidProgramException.class)
  public void testJoinKeyMixing4() {
    
    final ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
    DataSet<Tuple5<Integer, Long, String, Long, Integer>> ds1 = env.fromCollection(emptyTupleData, tupleTypeInfo);
    DataSet<CustomType> ds2 = env.fromCollection(customTypeData);


    // should not work, more than one key field position
    ds1.join(ds2)
    .where(1,3)
    .equalTo(

View Full Code Here

  }
  
  @Test
  public void testJoinProjection1() {
    
    final ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
    DataSet<Tuple5<Integer, Long, String, Long, Integer>> ds1 = env.fromCollection(emptyTupleData, tupleTypeInfo);
    DataSet<Tuple5<Integer, Long, String, Long, Integer>> ds2 = env.fromCollection(emptyTupleData, tupleTypeInfo);


    // should work
    try {
      ds1.join(ds2).where(0).equalTo(0)
      .projectFirst(0)

View Full Code Here

  }
  
  @Test
  public void testJoinProjection2() {
    
    final ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
    DataSet<Tuple5<Integer, Long, String, Long, Integer>> ds1 = env.fromCollection(emptyTupleData, tupleTypeInfo);
    DataSet<Tuple5<Integer, Long, String, Long, Integer>> ds2 = env.fromCollection(emptyTupleData, tupleTypeInfo);


    // should work
    try {
      ds1.join(ds2).where(0).equalTo(0)
      .projectFirst(0,3)

View Full Code Here

  }
  
  @Test
  public void testJoinProjection3() {
    
    final ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
    DataSet<Tuple5<Integer, Long, String, Long, Integer>> ds1 = env.fromCollection(emptyTupleData, tupleTypeInfo);
    DataSet<Tuple5<Integer, Long, String, Long, Integer>> ds2 = env.fromCollection(emptyTupleData, tupleTypeInfo);


    // should work
    try {
      ds1.join(ds2).where(0).equalTo(0)
      .projectFirst(0)

View Full Code Here

  }
  
  @Test
  public void testJoinProjection4() {
    
    final ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
    DataSet<Tuple5<Integer, Long, String, Long, Integer>> ds1 = env.fromCollection(emptyTupleData, tupleTypeInfo);
    DataSet<Tuple5<Integer, Long, String, Long, Integer>> ds2 = env.fromCollection(emptyTupleData, tupleTypeInfo);


    // should work
    try {
      ds1.join(ds2).where(0).equalTo(0)
      .projectFirst(0,2)

View Full Code Here

  }
  
  @Test
  public void testJoinProjection5() {
    
    final ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
    DataSet<Tuple5<Integer, Long, String, Long, Integer>> ds1 = env.fromCollection(emptyTupleData, tupleTypeInfo);
    DataSet<Tuple5<Integer, Long, String, Long, Integer>> ds2 = env.fromCollection(emptyTupleData, tupleTypeInfo);


    // should work
    try {
      ds1.join(ds2).where(0).equalTo(0)
      .projectSecond(0,2)

View Full Code Here

  }
  
  @Test
  public void testJoinProjection6() {
    
    final ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
    DataSet<CustomType> ds1 = env.fromCollection(customTypeData);
    DataSet<CustomType> ds2 = env.fromCollection(customTypeData);


    // should work
    try {
      ds1.join(ds2)
      .where(

View Full Code Here

  }
  
  @Test
  public void testJoinProjection7() {
    
    final ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
    DataSet<Tuple5<Integer, Long, String, Long, Integer>> ds1 = env.fromCollection(emptyTupleData, tupleTypeInfo);
    DataSet<Tuple5<Integer, Long, String, Long, Integer>> ds2 = env.fromCollection(emptyTupleData, tupleTypeInfo);


    // should work
    try {
      ds1.join(ds2).where(0).equalTo(0)
      .projectSecond()

View Full Code Here

  }
  
  @Test(expected=IndexOutOfBoundsException.class)
  public void testJoinProjection8() {
    
    final ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
    DataSet<Tuple5<Integer, Long, String, Long, Integer>> ds1 = env.fromCollection(emptyTupleData, tupleTypeInfo);
    DataSet<Tuple5<Integer, Long, String, Long, Integer>> ds2 = env.fromCollection(emptyTupleData, tupleTypeInfo);


    // should not work, index out of range
    ds1.join(ds2).where(0).equalTo(0)
    .projectFirst(5)
    .types(Integer.class);

View Full Code Here

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