Package org.apache.druid.data.input.impl

Class StringDimensionSchema

java.lang.Object

org.apache.druid.data.input.impl.DimensionSchema

org.apache.druid.data.input.impl.StringDimensionSchema

public class StringDimensionSchema
extends DimensionSchema

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.druid.data.input.impl.DimensionSchema

DimensionSchema.MultiValueHandling

Field Summary

Fields inherited from class org.apache.druid.data.input.impl.DimensionSchema

DOUBLE_TYPE_NAME, FLOAT_TYPE_NAME, LONG_TYPE_NAME, SPATIAL_TYPE_NAME, STRING_TYPE_NAME

Constructor Summary

Constructors

Constructor	Description
StringDimensionSchema(String name)
StringDimensionSchema(String name, DimensionSchema.MultiValueHandling multiValueHandling, Boolean createBitmapIndex)
StringDimensionSchema(String name, DimensionSchema.MultiValueHandling multiValueHandling, Boolean createBitmapIndex, StringColumnFormatSpec columnFormatSpec)

Method Summary

Modifier and Type	Method	Description
boolean	canBeMultiValued()	Returns true if the DimensionHandler.makeIndexer() of this schema can produce multi-valued ColumnType.STRING columns.
static StringDimensionSchema	create(String name)
boolean	equals(Object o)
StringColumnFormatSpec	getColumnFormatSpec()
ColumnType	getColumnType()
DimensionHandler	getDimensionHandler()
DimensionSchema	getEffectiveSchema(IndexSpec indexSpec)	Computes the 'effective' DimensionSchema, allowing columns which provide mechanisms for customizing storage format to fill in values from the segment level IndexSpec defaults.
String	getTypeName()
int	hashCode()

Methods inherited from class org.apache.druid.data.input.impl.DimensionSchema

getDefaultSchemaForBuiltInType, getMultiValueHandling, getName, hasBitmapIndex, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

StringDimensionSchema

public StringDimensionSchema(String name,
 DimensionSchema.MultiValueHandling multiValueHandling,
 Boolean createBitmapIndex,
 @Nullable
 StringColumnFormatSpec columnFormatSpec)

StringDimensionSchema

public StringDimensionSchema(String name,
 DimensionSchema.MultiValueHandling multiValueHandling,
 Boolean createBitmapIndex)

StringDimensionSchema

public StringDimensionSchema(String name)

Method Details

create

public static StringDimensionSchema create(String name)

getColumnFormatSpec

@Nullable
public StringColumnFormatSpec getColumnFormatSpec()

getEffectiveSchema

public DimensionSchema getEffectiveSchema(IndexSpec indexSpec)

Description copied from class: DimensionSchema

Computes the 'effective' DimensionSchema, allowing columns which provide mechanisms for customizing storage format to fill in values from the segment level IndexSpec defaults. This is useful for comparing the operator explicitly defined schema with the 'effective' schema that was written to the segments for things like comparing compaction state.

Overrides:

getEffectiveSchema in class DimensionSchema

getTypeName

public String getTypeName()

Specified by:

getTypeName in class DimensionSchema

getColumnType

public ColumnType getColumnType()

Specified by:

getColumnType in class DimensionSchema

canBeMultiValued

public boolean canBeMultiValued()

Description copied from class: DimensionSchema

Returns true if the DimensionHandler.makeIndexer() of this schema can produce multi-valued ColumnType.STRING columns. This method is used by MSQ compaction to determine if it needs to download the segments to check if any are actually multi-valued.

Overrides:

canBeMultiValued in class DimensionSchema

getDimensionHandler

public DimensionHandler getDimensionHandler()

Overrides:

getDimensionHandler in class DimensionSchema

equals

public boolean equals(Object o)

Overrides:

equals in class DimensionSchema

hashCode

public int hashCode()

Overrides:

hashCode in class DimensionSchema