Package org.apache.druid.segment.nested

Class ScalarLongFieldColumnWriter

java.lang.Object

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

org.apache.druid.segment.nested.ScalarLongFieldColumnWriter

public final class ScalarLongFieldColumnWriter
extends GlobalDictionaryEncodedFieldColumnWriter<Long>

Nested field writer for long type 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

arrayElements, columnFormatSpec, columnName, cursorPosition, encodedValueSerializer, fieldName, fieldResourceCloser, flags, globalDictionaryIdLookup, intermediateValueWriter, localDictionary, segmentWriteOutMedium, version

Constructor Summary

Constructors

Constructor	Description
ScalarLongFieldColumnWriter(String columnName, String fieldName, SegmentWriteOutMedium segmentWriteOutMedium, NestedCommonFormatColumnFormatSpec columnFormatSpec, DictionaryIdLookup globalDictionaryIdLookup)

Method Summary

Modifier and Type	Method	Description
void	openColumnSerializer(SegmentWriteOutMedium medium, int maxId)

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

addValue, open, writeLongAndDoubleColumnLength, writeTo

Methods inherited from class java.lang.Object

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

Constructor Details

ScalarLongFieldColumnWriter

public ScalarLongFieldColumnWriter(String columnName,
 String fieldName,
 SegmentWriteOutMedium segmentWriteOutMedium,
 NestedCommonFormatColumnFormatSpec columnFormatSpec,
 DictionaryIdLookup globalDictionaryIdLookup)

Method Details

openColumnSerializer

public void openColumnSerializer(SegmentWriteOutMedium medium,
 int maxId)
                          throws IOException

Overrides:

openColumnSerializer in class GlobalDictionaryEncodedFieldColumnWriter<Long>

Throws:

IOException