org.apache.drill.exec.store.parquet.metadata

Class MetadataBase.ColumnMetadata

java.lang.Object

org.apache.drill.exec.store.parquet.metadata.MetadataBase.ColumnMetadata

Direct Known Subclasses:

Metadata_V1.ColumnMetadata_v1, Metadata_V2.ColumnMetadata_v2, Metadata_V3.ColumnMetadata_v3

Enclosing class:

MetadataBase

public abstract static class MetadataBase.ColumnMetadata
extends Object

Constructor Summary

Constructors

Constructor and Description
ColumnMetadata()

Method Summary

Modifier and Type	Method and Description
abstract Object	getMaxValue()
abstract Object	getMinValue()
abstract String[]	getName()
abstract Long	getNulls()
abstract org.apache.parquet.schema.OriginalType	getOriginalType()
abstract org.apache.parquet.schema.PrimitiveType.PrimitiveTypeName	getPrimitiveType()
abstract boolean	hasSingleValue(long rowCount)
boolean	isNumNullsSet() Number of nulls is considered to be valid if its value is not null and -1.
abstract void	setMax(Object newMax) Set the max value recorded in the parquet metadata statistics.
abstract void	setMin(Object newMax) Set the min value recorded in the parquet metadata statistics.

Methods inherited from class java.lang.Object

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

Constructor Detail

ColumnMetadata

public ColumnMetadata()

Method Detail

isNumNullsSet

public boolean isNumNullsSet()

Number of nulls is considered to be valid if its value is not null and -1.

Returns:

true if nulls value is defined, false otherwise

getName

public abstract String[] getName()

getNulls

public abstract Long getNulls()

hasSingleValue

public abstract boolean hasSingleValue(long rowCount)

getMinValue

public abstract Object getMinValue()

getMaxValue

public abstract Object getMaxValue()

setMax

public abstract void setMax(Object newMax)

Set the max value recorded in the parquet metadata statistics. This object would just be immutable, but due to Drill-4203 we need to correct date values that had been corrupted by earlier versions of Drill.

setMin

public abstract void setMin(Object newMax)

Set the min value recorded in the parquet metadata statistics. This object would just be immutable, but due to Drill-4203 we need to correct date values that had been corrupted by earlier versions of Drill.

getPrimitiveType

public abstract org.apache.parquet.schema.PrimitiveType.PrimitiveTypeName getPrimitiveType()

getOriginalType

public abstract org.apache.parquet.schema.OriginalType getOriginalType()