Examples of eu.stratosphere.api.java.ExecutionEnvironment.fromCollection()

Class eu.stratosphere.api.java.ExecutionEnvironment

Examples of eu.stratosphere.api.java.ExecutionEnvironment.fromCollection()

eu.stratosphere.api.java.ExecutionEnvironment.fromCollection()
Creates a DataSet from the given non-empty collection. The type of the data set is that of the elements in the collection. The elements need to be serializable (as defined by {@link java.io.Serializable}), because the framework may move the elements into the cluster if needed.
The framework will try and determine the exact type from the collection elements. In case of generic elements, it may be necessary to manually supply the type information via {@link #fromCollection(Collection,TypeInformation)}.
Note that this operation will result in a non-parallel data source, i.e. a data source with a degree of parallelism of one. @param data The collection of elements to create the data set from. @return A DataSet representing the given collection. @see #fromCollection(Collection,TypeInformation)

  @Test(expected = IllegalArgumentException.class)
  public void testJoinKeyFields5() {
    
    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, empty join key
    ds1.join(ds2).where().equalTo();
  }

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  @Test(expected = IllegalArgumentException.class)
  public void testJoinKeyFields6() {
    
    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, negative key field position
    ds1.join(ds2).where(-1).equalTo(-1);
  }

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  @Test(expected = IllegalArgumentException.class)
  public void testJoinKeyFields6() {
    
    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, negative key field position
    ds1.join(ds2).where(-1).equalTo(-1);
  }

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  @Test(expected = IllegalArgumentException.class)
  public void testJoinKeyFields7() {
    
    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, join key fields on custom type
    ds1.join(ds2).where(5).equalTo(0);
  }

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  @Test(expected = IllegalArgumentException.class)
  public void testJoinKeyFields7() {
    
    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, join key fields on custom type
    ds1.join(ds2).where(5).equalTo(0);
  }

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  @Test
  public void testJoinKeySelectors1() {
    
    final ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
    DataSet<CustomType> ds1 = env.fromCollection(customTypeData);
    DataSet<CustomType> ds2 = env.fromCollection(customTypeData);


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

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  @Test
  public void testJoinKeySelectors1() {
    
    final ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
    DataSet<CustomType> ds1 = env.fromCollection(customTypeData);
    DataSet<CustomType> ds2 = env.fromCollection(customTypeData);


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

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  @Test
  public void testJoinKeyMixing1() {
    
    final ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
    DataSet<CustomType> ds1 = env.fromCollection(customTypeData);
    DataSet<Tuple5<Integer, Long, String, Long, Integer>> ds2 = env.fromCollection(emptyTupleData, tupleTypeInfo);
    


    // should work
    try {

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  @Test
  public void testJoinKeyMixing1() {
    
    final ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
    DataSet<CustomType> ds1 = env.fromCollection(customTypeData);
    DataSet<Tuple5<Integer, Long, String, Long, Integer>> ds2 = env.fromCollection(emptyTupleData, tupleTypeInfo);
    


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

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  @Test
  public void testJoinKeyMixing2() {
    
    final ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
    DataSet<Tuple5<Integer, Long, String, Long, Integer>> ds1 = env.fromCollection(emptyTupleData, tupleTypeInfo);
    DataSet<CustomType> ds2 = env.fromCollection(customTypeData);


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

View Full Code Here

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