Examples of org.apache.drill.exec.vector.NullableVarCharVector$Accessor

org.apache.drill.exec.vector.NullableVarCharVector
NullableVarChar implements a vector of values which could be null. Elements in the vector are first checked against a fixed length vector of boolean values. Then the element is retrieved from the base class (if not null). NB: this class is automatically generated from ValueVectorTypes.tdd using FreeMarker.

    defBuilder
        .setMajorType(typeBuilder.build());
    MaterializedField field = MaterializedField.create(defBuilder.build());


    // Create a new value vector for 1024 integers
    NullableVarCharVector v = new NullableVarCharVector(field, allocator);
    NullableVarCharVector.Mutator m = v.getMutator();
    v.allocateNew(1024*10, 1024);


    // Create and set 3 sample strings
    String str1 = new String("AAAAA1");
    String str2 = new String("BBBBBBBBB2");
    String str3 = new String("CCCC3");
    m.set(0, str1.getBytes(Charset.forName("UTF-8")));
    m.set(1, str2.getBytes(Charset.forName("UTF-8")));
    m.set(2, str3.getBytes(Charset.forName("UTF-8")));


    // Check the sample strings
    assertEquals(str1, new String(v.getAccessor().get(0), Charset.forName("UTF-8")));
    assertEquals(str2, new String(v.getAccessor().get(1), Charset.forName("UTF-8")));
    assertEquals(str3, new String(v.getAccessor().get(2), Charset.forName("UTF-8")));


    // Ensure null value throws
    boolean b = false;
    try {
      v.getAccessor().get(3);
    } catch(AssertionError e) { 
      b = true;
    }finally{
      if(!b){
        assert false;

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    FunctionImplementationRegistry registry = new FunctionImplementationRegistry(c);
    FragmentContext context = new FragmentContext(bitContext, ExecProtos.FragmentHandle.getDefaultInstance(), connection, null, registry);
    SimpleRootExec exec = new SimpleRootExec(ImplCreator.getExec(context, (FragmentRoot) plan.getSortedOperators(false).iterator().next()));


    while(exec.next()){
      NullableVarCharVector c1 = exec.getValueVectorById(new SchemaPath("col3", ExpressionPosition.UNKNOWN), NullableVarCharVector.class);
      NullableVarCharVector.Accessor a1;
      a1 = c1.getAccessor();


      int count = 0;
      for(int i = 0; i < c1.getAccessor().getValueCount(); i++){
        if (!a1.isNull(i)) {
          NullableVarCharHolder holder = new NullableVarCharHolder();
          a1.get(i, holder);
          assertEquals("aaaa", holder.toString());
          ++count;

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    FunctionImplementationRegistry registry = new FunctionImplementationRegistry(c);
    FragmentContext context = new FragmentContext(bitContext, ExecProtos.FragmentHandle.getDefaultInstance(), connection, null, registry);
    SimpleRootExec exec = new SimpleRootExec(ImplCreator.getExec(context, (FragmentRoot) plan.getSortedOperators(false).iterator().next()));


    while(exec.next()){
      NullableVarCharVector c1 = exec.getValueVectorById(new SchemaPath("col3", ExpressionPosition.UNKNOWN), NullableVarCharVector.class);
      NullableVarCharVector.Accessor a1;
      a1 = c1.getAccessor();


      int count = 0;
      for(int i = 0; i < c1.getAccessor().getValueCount(); i++){
        if (!a1.isNull(i)) {
          NullableVarCharHolder holder = new NullableVarCharHolder();
          a1.get(i, holder);
          assertEquals("aa", holder.toString());
          ++count;

View Full Code Here

    defBuilder
        .setMajorType(typeBuilder.build());
    MaterializedField field = MaterializedField.create(defBuilder.build());


    // Create a new value vector for 1024 integers
    NullableVarCharVector v = new NullableVarCharVector(field, allocator);
    NullableVarCharVector.Mutator m = v.getMutator();
    v.allocateNew(1024*10, 1024);


    // Create and set 3 sample strings
    String str1 = new String("AAAAA1");
    String str2 = new String("BBBBBBBBB2");
    String str3 = new String("CCCC3");
    m.set(0, str1.getBytes(Charset.forName("UTF-8")));
    m.set(1, str2.getBytes(Charset.forName("UTF-8")));
    m.set(2, str3.getBytes(Charset.forName("UTF-8")));


    // Check the sample strings
    assertEquals(str1, new String(v.getAccessor().get(0), Charset.forName("UTF-8")));
    assertEquals(str2, new String(v.getAccessor().get(1), Charset.forName("UTF-8")));
    assertEquals(str3, new String(v.getAccessor().get(2), Charset.forName("UTF-8")));


    // Ensure null value throws
    boolean b = false;
    try {
      v.getAccessor().get(3);
    } catch(AssertionError e) {
      b = true;
    }finally{
      if(!b){
        assert false;

View Full Code Here

    BufferAllocator allocator = new TopLevelAllocator();
    ValueVector fixedV = new IntVector(MaterializedField.create(new SchemaPath("ints", ExpressionPosition.UNKNOWN),
        Types.required(MinorType.INT)), allocator);
    ValueVector varlenV = new VarCharVector(MaterializedField.create(
        new SchemaPath("chars", ExpressionPosition.UNKNOWN), Types.required(MinorType.VARCHAR)), allocator);
    ValueVector nullableVarlenV = new NullableVarCharVector(MaterializedField.create(new SchemaPath("chars",
        ExpressionPosition.UNKNOWN), Types.optional(MinorType.VARCHAR)), allocator);


    List<ValueVector> vectors = Lists.newArrayList(fixedV, varlenV, nullableVarlenV);
    for (ValueVector v : vectors) {
      AllocationHelper.allocate(v, 100, 50);

View Full Code Here

  }


  private void populatePartitionVectors() {
    for (int i : selectedPartitionColumns) {
      if (partitionValues.length > i) {
        NullableVarCharVector v = (NullableVarCharVector) partitionVectors.get(i);
        String val = partitionValues[i];
        AllocationHelper.allocate(v, recordCount, val.length());
        NullableVarCharHolder h = new NullableVarCharHolder();
        byte[] bytes = val.getBytes();
        h.buffer = Unpooled.buffer(bytes.length);
        h.buffer.writeBytes(bytes);
        h.start = 0;
        h.isSet = 1;
        h.end = bytes.length;
        for (int j = 0; j < recordCount; j++) {
          v.getMutator().setSafe(j, h);
        }
        v.getMutator().setValueCount(recordCount);
      } else {
        NullableVarCharVector v = (NullableVarCharVector) partitionVectors.get(i);
        AllocationHelper.allocate(v, recordCount, 0);
        v.getMutator().setValueCount(recordCount);
      }
    }
  }

View Full Code Here

    FunctionImplementationRegistry registry = new FunctionImplementationRegistry(c);
    FragmentContext context = new FragmentContext(bitContext, PlanFragment.getDefaultInstance(), connection, registry);
    SimpleRootExec exec = new SimpleRootExec(ImplCreator.getExec(context, (FragmentRoot) plan.getSortedOperators(false).iterator().next()));


    while(exec.next()){
      NullableVarCharVector c1 = exec.getValueVectorById(new SchemaPath("col3", ExpressionPosition.UNKNOWN), NullableVarCharVector.class);
      NullableVarCharVector.Accessor a1;
      a1 = c1.getAccessor();


      int count = 0;
      for(int i = 0; i < c1.getAccessor().getValueCount(); i++){
        if (!a1.isNull(i)) {
          NullableVarCharHolder holder = new NullableVarCharHolder();
          a1.get(i, holder);
          assertEquals("aaaa", holder.toString());
          ++count;

View Full Code Here

    FunctionImplementationRegistry registry = new FunctionImplementationRegistry(c);
    FragmentContext context = new FragmentContext(bitContext, PlanFragment.getDefaultInstance(), connection, registry);
    SimpleRootExec exec = new SimpleRootExec(ImplCreator.getExec(context, (FragmentRoot) plan.getSortedOperators(false).iterator().next()));


    while(exec.next()){
      NullableVarCharVector c1 = exec.getValueVectorById(new SchemaPath("col3", ExpressionPosition.UNKNOWN), NullableVarCharVector.class);
      NullableVarCharVector.Accessor a1;
      a1 = c1.getAccessor();


      int count = 0;
      for(int i = 0; i < c1.getAccessor().getValueCount(); i++){
        if (!a1.isNull(i)) {
          NullableVarCharHolder holder = new NullableVarCharHolder();
          a1.get(i, holder);
          //when offset is negative, substring return empty string.
          assertEquals("", holder.toString());

View Full Code Here

    BufferAllocator allocator = new TopLevelAllocator();
    ValueVector fixedV = new IntVector(MaterializedField.create(new SchemaPath("ints", ExpressionPosition.UNKNOWN),
        Types.required(MinorType.INT)), allocator);
    ValueVector varlenV = new VarCharVector(MaterializedField.create(
        new SchemaPath("chars", ExpressionPosition.UNKNOWN), Types.required(MinorType.VARCHAR)), allocator);
    ValueVector nullableVarlenV = new NullableVarCharVector(MaterializedField.create(new SchemaPath("chars",
        ExpressionPosition.UNKNOWN), Types.optional(MinorType.VARCHAR)), allocator);


    List<ValueVector> vectors = Lists.newArrayList(fixedV, varlenV, nullableVarlenV);
    for (ValueVector v : vectors) {
      AllocationHelper.allocate(v, 100, 50);

View Full Code Here

    FunctionImplementationRegistry registry = new FunctionImplementationRegistry(c);
    FragmentContext context = new FragmentContext(bitContext, PlanFragment.getDefaultInstance(), connection, registry);
    SimpleRootExec exec = new SimpleRootExec(ImplCreator.getExec(context, (FragmentRoot) plan.getSortedOperators(false).iterator().next()));


    while(exec.next()){
      NullableVarCharVector c1 = exec.getValueVectorById(new SchemaPath("col3", ExpressionPosition.UNKNOWN), NullableVarCharVector.class);
      NullableVarCharVector.Accessor a1;
      a1 = c1.getAccessor();


      int count = 0;
      for(int i = 0; i < c1.getAccessor().getValueCount(); i++){
        if (!a1.isNull(i)) {
          NullableVarCharHolder holder = new NullableVarCharHolder();
          a1.get(i, holder);
          assertEquals("aaaa", StringFunctionHelpers.toStringFromUTF8(holder.start,  holder.end,  holder.buffer));
          ++count;

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