Package org.apache.drill.exec.vector.complex.reader

Interface BaseReader.DictReader

All Superinterfaces:
BaseReader, BaseReader.MapReader, BaseReader.RepeatedMapReader, Iterable<String>, Positionable
All Known Subinterfaces:
FieldReader
All Known Implementing Classes:
AbstractFieldReader, AbstractRepeatedMapReaderImpl, BigIntHolderReaderImpl, BigIntReaderImpl, BitHolderReaderImpl, BitReaderImpl, DateHolderReaderImpl, DateReaderImpl, Decimal18HolderReaderImpl, Decimal18ReaderImpl, Decimal28DenseHolderReaderImpl, Decimal28DenseReaderImpl, Decimal28SparseHolderReaderImpl, Decimal28SparseReaderImpl, Decimal38DenseHolderReaderImpl, Decimal38DenseReaderImpl, Decimal38SparseHolderReaderImpl, Decimal38SparseReaderImpl, Decimal9HolderReaderImpl, Decimal9ReaderImpl, Float4HolderReaderImpl, Float4ReaderImpl, Float8HolderReaderImpl, Float8ReaderImpl, IntervalDayHolderReaderImpl, IntervalDayReaderImpl, IntervalHolderReaderImpl, IntervalReaderImpl, IntervalYearHolderReaderImpl, IntervalYearReaderImpl, IntHolderReaderImpl, IntReaderImpl, NullableBigIntHolderReaderImpl, NullableBigIntReaderImpl, NullableBitHolderReaderImpl, NullableBitReaderImpl, NullableDateHolderReaderImpl, NullableDateReaderImpl, NullableDecimal18HolderReaderImpl, NullableDecimal18ReaderImpl, NullableDecimal28DenseHolderReaderImpl, NullableDecimal28DenseReaderImpl, NullableDecimal28SparseHolderReaderImpl, NullableDecimal28SparseReaderImpl, NullableDecimal38DenseHolderReaderImpl, NullableDecimal38DenseReaderImpl, NullableDecimal38SparseHolderReaderImpl, NullableDecimal38SparseReaderImpl, NullableDecimal9HolderReaderImpl, NullableDecimal9ReaderImpl, NullableFloat4HolderReaderImpl, NullableFloat4ReaderImpl, NullableFloat8HolderReaderImpl, NullableFloat8ReaderImpl, NullableIntervalDayHolderReaderImpl, NullableIntervalDayReaderImpl, NullableIntervalHolderReaderImpl, NullableIntervalReaderImpl, NullableIntervalYearHolderReaderImpl, NullableIntervalYearReaderImpl, NullableIntHolderReaderImpl, NullableIntReaderImpl, NullableSmallIntHolderReaderImpl, NullableSmallIntReaderImpl, NullableTimeHolderReaderImpl, NullableTimeReaderImpl, NullableTimeStampHolderReaderImpl, NullableTimeStampReaderImpl, NullableTinyIntHolderReaderImpl, NullableTinyIntReaderImpl, NullableUInt1HolderReaderImpl, NullableUInt1ReaderImpl, NullableUInt2HolderReaderImpl, NullableUInt2ReaderImpl, NullableUInt4HolderReaderImpl, NullableUInt4ReaderImpl, NullableUInt8HolderReaderImpl, NullableUInt8ReaderImpl, NullableVar16CharHolderReaderImpl, NullableVar16CharReaderImpl, NullableVarBinaryHolderReaderImpl, NullableVarBinaryReaderImpl, NullableVarCharHolderReaderImpl, NullableVarCharReaderImpl, NullableVarDecimalHolderReaderImpl, NullableVarDecimalReaderImpl, NullReader, RepeatedBigIntHolderReaderImpl, RepeatedBigIntReaderImpl, RepeatedBitHolderReaderImpl, RepeatedBitReaderImpl, RepeatedDateHolderReaderImpl, RepeatedDateReaderImpl, RepeatedDecimal18HolderReaderImpl, RepeatedDecimal18ReaderImpl, RepeatedDecimal28DenseHolderReaderImpl, RepeatedDecimal28DenseReaderImpl, RepeatedDecimal28SparseHolderReaderImpl, RepeatedDecimal28SparseReaderImpl, RepeatedDecimal38DenseHolderReaderImpl, RepeatedDecimal38DenseReaderImpl, RepeatedDecimal38SparseHolderReaderImpl, RepeatedDecimal38SparseReaderImpl, RepeatedDecimal9HolderReaderImpl, RepeatedDecimal9ReaderImpl, RepeatedDictReaderImpl, RepeatedFloat4HolderReaderImpl, RepeatedFloat4ReaderImpl, RepeatedFloat8HolderReaderImpl, RepeatedFloat8ReaderImpl, RepeatedIntervalDayHolderReaderImpl, RepeatedIntervalDayReaderImpl, RepeatedIntervalHolderReaderImpl, RepeatedIntervalReaderImpl, RepeatedIntervalYearHolderReaderImpl, RepeatedIntervalYearReaderImpl, RepeatedIntHolderReaderImpl, RepeatedIntReaderImpl, RepeatedListReaderImpl, RepeatedMapReaderImpl, RepeatedSmallIntHolderReaderImpl, RepeatedSmallIntReaderImpl, RepeatedTimeHolderReaderImpl, RepeatedTimeReaderImpl, RepeatedTimeStampHolderReaderImpl, RepeatedTimeStampReaderImpl, RepeatedTinyIntHolderReaderImpl, RepeatedTinyIntReaderImpl, RepeatedUInt1HolderReaderImpl, RepeatedUInt1ReaderImpl, RepeatedUInt2HolderReaderImpl, RepeatedUInt2ReaderImpl, RepeatedUInt4HolderReaderImpl, RepeatedUInt4ReaderImpl, RepeatedUInt8HolderReaderImpl, RepeatedUInt8ReaderImpl, RepeatedVar16CharHolderReaderImpl, RepeatedVar16CharReaderImpl, RepeatedVarBinaryHolderReaderImpl, RepeatedVarBinaryReaderImpl, RepeatedVarCharHolderReaderImpl, RepeatedVarCharReaderImpl, RepeatedVarDecimalHolderReaderImpl, RepeatedVarDecimalReaderImpl, SingleDictReaderImpl, SingleLikeRepeatedMapReaderImpl, SingleListReaderImpl, SingleMapReaderImpl, SmallIntHolderReaderImpl, SmallIntReaderImpl, TimeHolderReaderImpl, TimeReaderImpl, TimeStampHolderReaderImpl, TimeStampReaderImpl, TinyIntHolderReaderImpl, TinyIntReaderImpl, UInt1HolderReaderImpl, UInt1ReaderImpl, UInt2HolderReaderImpl, UInt2ReaderImpl, UInt4HolderReaderImpl, UInt4ReaderImpl, UInt8HolderReaderImpl, UInt8ReaderImpl, UnionListReader, UnionReader, UntypedHolderReaderImpl, UntypedReaderImpl, Var16CharHolderReaderImpl, Var16CharReaderImpl, VarBinaryHolderReaderImpl, VarBinaryReaderImpl, VarCharHolderReaderImpl, VarCharReaderImpl, VarDecimalHolderReaderImpl, VarDecimalReaderImpl
Enclosing interface:
BaseReader
public static interface BaseReader.DictReader extends BaseReader.RepeatedMapReader

  • Method Details

    • copyAsValue

      void copyAsValue(BaseWriter.DictWriter writer)

    • find

      int find(String key)
      Obtain the index for given key in current row used to find a corresponding value with. Used in generated code when retrieving value from Dict with PathSegment.NameSegment in cases when DictVector.getValueType() is complex.

      Despite key is passed as String the value is converted to actual type based on DictVector.getKeyType().

      Parameters:
      key - literal representing key value
      Returns:
      index for the given key
      See Also:

    • find

      int find(int key)
      Obtain the index for given key in current row used to find a corresponding value with. Used in generated code when retrieving value from Dict with PathSegment.ArraySegment in cases when DictVector.getValueType() is complex.

      Despite key is passed as int the value is converted to actual type based on DictVector.getKeyType().

      Parameters:
      key - literal representing key value
      Returns:
      index for the given key
      See Also:

    • find

      int find(Object key)
      Obtain the index for given key in current row used to find a corresponding value with. Used in generated code when retrieving value from Dict using PathSegment with provided PathSegment.getOriginalValue() in cases when DictVector.getValueType() is complex.

      The key is assumed to be of actual type, is not converted and used as is.

      Parameters:
      key - key value
      Returns:
      index for the given key
      See Also:

    • read

      void read(String key, ValueHolder holder)
      Reads a value corresponding to a key into the holder. If there is no entry in the row with the given key, value is set to null.

      Used in generated code when retrieving value from Dict with PathSegment.NameSegment in cases when DictVector.getValueType() is primitive.

      Despite key is passed as String the value is converted to actual type based on DictVector.getKeyType().

      Parameters:
      key - literal representing key value
      holder - a holder to write value's value into
      See Also:

    • read

      void read(int key, ValueHolder holder)
      Reads a value corresponding to a key into the holder. If there is no entry in the row with the given key, value is set to null.

      Used in generated code when retrieving value from Dict with PathSegment.ArraySegment in cases when DictVector.getValueType() is primitive.

      Despite key is passed as int the value is converted to actual type based on DictVector.getKeyType().

      Parameters:
      key - literal representing key value
      holder - a holder to write value's value into
      See Also:

    • read

      void read(Object key, ValueHolder holder)
      Reads a value corresponding to a key into the holder. If there is no entry in the row with the given key, value is set to null.

      Used in generated code when retrieving value from Dict using PathSegment with provided PathSegment.getOriginalValue() in cases when DictVector.getValueType() is primitive.

      The key is assumed to be of actual type, is not converted and used as is.

      Parameters:
      key - key value
      holder - a holder to write value's value into
      See Also: