Examples of org.apache.hadoop.hive.serde2.objectinspector.StandardMapObjectInspector

Package org.apache.hadoop.hive.serde2.objectinspector

Examples of org.apache.hadoop.hive.serde2.objectinspector.StandardMapObjectInspector

org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector
StandardMapObjectInspector works on map data that is stored as a Java Map object. Note: the key object of the map must support equals and hashCode by itself. We also plan to have a GeneralMapObjectInspector which can work on map with key objects that does not support equals and hashCode. That will require us to store InspectableObject as the key, which will have overridden equals and hashCode methods. Always use the ObjectInspectorFactory to create new ObjectInspector objects, instead of directly creating an instance of this class.

    if (o == null || o.getClass() != getClass()) {
      return false;
    } else if (o == this) {
      return true;
    } else {
      ObjectInspector other = ((OrcLazyListObjectInspector) o).child;
      return other.equals(child);
    }
  }

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  /**
   * Tests a writing a stripe with a string column, which enters low memory mode before the second
   * index stride is complete, and does not complete that stride.
   */
  public void testStringEnterLowMemoryModeInSecondStride() throws Exception {
    ObjectInspector inspector;
    synchronized (TestOrcFile.class) {
      inspector = ObjectInspectorFactory.getReflectionObjectInspector
          (StringStruct.class,
              ObjectInspectorFactory.ObjectInspectorOptions.JAVA);
    }

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  /**
   * Tests a writing a stripe with an int column, which enters low memory mode before the second
   * index stride is complete, and does not complete that stride.
   */
  public void testIntEnterLowMemoryModeInSecondStride() throws Exception {
    ObjectInspector inspector;
    synchronized (TestOrcFile.class) {
      inspector = ObjectInspectorFactory.getReflectionObjectInspector
          (IntStruct.class,
              ObjectInspectorFactory.ObjectInspectorOptions.JAVA);
    }

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  /**
   * Tests a writing a stripe with a string column, which enters low memory mode just before the
   * second stride starts
   */
  public void testStringEnterLowMemoryModeAtStrideStart() throws Exception {
    ObjectInspector inspector;
    synchronized (TestOrcFile.class) {
      inspector = ObjectInspectorFactory.getReflectionObjectInspector
          (StringStruct.class,
              ObjectInspectorFactory.ObjectInspectorOptions.JAVA);
    }

View Full Code Here

  /**
   * Tests a writing a stripe with an int column, which enters low memory mode just before the
   * second stride starts
   */
  public void testIntEnterLowMemoryModeAtStrideStart() throws Exception {
    ObjectInspector inspector;
    synchronized (TestOrcFile.class) {
      inspector = ObjectInspectorFactory.getReflectionObjectInspector
          (IntStruct.class,
              ObjectInspectorFactory.ObjectInspectorOptions.JAVA);
    }

View Full Code Here

  /**
   * Tests a writing a stripe with a string column, which enters low memory mode just after the
   * second stride starts
   */
  public void testStringEnterLowMemoryModeAfterStrideStart() throws Exception {
    ObjectInspector inspector;
    synchronized (TestOrcFile.class) {
      inspector = ObjectInspectorFactory.getReflectionObjectInspector
          (StringStruct.class,
              ObjectInspectorFactory.ObjectInspectorOptions.JAVA);
    }

View Full Code Here

  /**
   * Tests a writing a stripe with an int column, which enters low memory mode just after the
   * second stride starts
   */
  public void testIntEnterLowMemoryModeAfterStrideStart() throws Exception {
    ObjectInspector inspector;
    synchronized (TestOrcFile.class) {
      inspector = ObjectInspectorFactory.getReflectionObjectInspector
          (IntStruct.class,
              ObjectInspectorFactory.ObjectInspectorOptions.JAVA);
    }

View Full Code Here

   * Tests writing a stripe with a string column, which doesn't do dictionary encoding, then
   * re-evaluates whether it should do dictionary encoding or not.  While it's re-evaluating, it
   * enters low memory mode.
   */
  public void testStringEnterLowMemoryModeAndOnNotCarriedOverStripe() throws Exception {
    ObjectInspector inspector;
    synchronized (TestOrcFile.class) {
      inspector = ObjectInspectorFactory.getReflectionObjectInspector
          (StringStruct.class,
              ObjectInspectorFactory.ObjectInspectorOptions.JAVA);
    }

View Full Code Here

   * Tests writing a stripe with an int column, which doesn't do dictionary encoding, then
   * re-evaluates whether it should do dictionary encoding or not.  While it's re-evaluating, it
   * enters low memory mode
   */
  public void testIntegerEnterLowMemoryModeAndOnNotCarriedOverStripe() throws Exception {
    ObjectInspector inspector;
    synchronized (TestOrcFile.class) {
      inspector = ObjectInspectorFactory.getReflectionObjectInspector
          (IntStruct.class,
              ObjectInspectorFactory.ObjectInspectorOptions.JAVA);
    }

View Full Code Here

  @Test
  /**
   * Tests calling seekToRow to make sure it updates the stripe accordingly
   */
  public void testSeekToRow() throws Exception {
    ObjectInspector inspector;
    synchronized (TestOrcFile.class) {
      inspector = ObjectInspectorFactory.getReflectionObjectInspector
          (IntStruct.class,
              ObjectInspectorFactory.ObjectInspectorOptions.JAVA);
    }

View Full Code Here

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