org.apache.druid.segment.nested

Class LongFieldColumnWriter

java.lang.Object

org.apache.druid.segment.nested.GlobalDictionaryEncodedFieldColumnWriter<Long>

org.apache.druid.segment.nested.LongFieldColumnWriter

public final class LongFieldColumnWriter
extends GlobalDictionaryEncodedFieldColumnWriter<Long>

Literal field writer for long type nested columns of NestedDataColumnSerializer. In addition to the normal dictionary encoded column, this writer also writes an additional long value column with longsSerializer, which is written to during GlobalDictionaryEncodedFieldColumnWriter.addValue(int, java.lang.Object).

Field Summary

Fields inherited from class org.apache.druid.segment.nested.GlobalDictionaryEncodedFieldColumnWriter

columnName, cursorPosition, encodedValueSerializer, fieldName, flags, globalDictionaryIdLookup, indexSpec, intermediateValueWriter, localDictionary, segmentWriteOutMedium, version

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	LongFieldColumnWriter(String columnName, String fieldName, SegmentWriteOutMedium segmentWriteOutMedium, IndexSpec indexSpec, GlobalDictionaryIdLookup globalDictionaryIdLookup)

Method Summary

Modifier and Type	Method and Description
void	open() Open the writer so that GlobalDictionaryEncodedFieldColumnWriter.addValue(int, Object) can be called

Methods inherited from class org.apache.druid.segment.nested.GlobalDictionaryEncodedFieldColumnWriter

addValue, writeLongAndDoubleColumnLength, writeTo

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

LongFieldColumnWriter

protected LongFieldColumnWriter(String columnName,
                                String fieldName,
                                SegmentWriteOutMedium segmentWriteOutMedium,
                                IndexSpec indexSpec,
                                GlobalDictionaryIdLookup globalDictionaryIdLookup)

Method Detail

open

public void open()
          throws IOException

Description copied from class: GlobalDictionaryEncodedFieldColumnWriter

Open the writer so that GlobalDictionaryEncodedFieldColumnWriter.addValue(int, Object) can be called

Overrides:

open in class GlobalDictionaryEncodedFieldColumnWriter<Long>

Throws:

IOException