Package org.apache.druid.frame.field

Interface Summary

Interface	Description
FieldReader	Embeds the logic to read a specific field from row-based frames or from RowKey.
FieldWriter	Helper used to write field values to row-based frames or RowKey.
ReadableFieldPointer	Pointer to a field position in some memory.

Class Summary

Class	Description
ComplexFieldReader	Reads values written by ComplexFieldWriter.
ComplexFieldWriter	Wraps a BaseObjectColumnValueSelector and uses ComplexMetricSerde.toBytes(java.lang.Object) to write complex objects.
ConstantFieldPointer
DoubleFieldReader	Reads values written by DoubleFieldWriter.
DoubleFieldWriter	Wraps a BaseDoubleColumnValueSelector and writes field values.
FieldReaders	Helper used to read field values from row-based frames or RowKey.
FieldWriters	Helper used to write field values to row-based frames or RowKey.
FloatFieldReader	Reads values written by FloatFieldWriter.
FloatFieldWriter	Wraps a BaseFloatColumnValueSelector and writes field values.
LongFieldReader	Reads values written by LongFieldWriter.
LongFieldWriter	Wraps a BaseLongColumnValueSelector and writes individual values into rframe rows.
RowMemoryFieldPointer	A ReadableFieldPointer that is derived from a row-based frame.
RowReader	Class for reading rows in the same format as used by FrameType.ROW_BASED.
StringArrayFieldWriter	Like StringFieldWriter, but reads arrays from a ColumnValueSelector instead of reading from a DimensionSelector.
StringFieldReader	Reads fields written by StringFieldWriter or StringArrayFieldWriter.
StringFieldWriter	Wraps a DimensionSelector and writes to rframe rows.