org.apache.druid.segment.column

Class SimpleColumnIndexCapabilities

java.lang.Object

org.apache.druid.segment.column.SimpleColumnIndexCapabilities

All Implemented Interfaces:

ColumnIndexCapabilities

public class SimpleColumnIndexCapabilities
extends Object
implements ColumnIndexCapabilities

Constructor Summary

Constructors

Constructor and Description
SimpleColumnIndexCapabilities(boolean invertible, boolean exact)

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object o)
static ColumnIndexCapabilities	getConstant() ColumnIndexCapabilities to use for constant values (including 'null' values for 'missing' columns)
int	hashCode()
boolean	isExact() Indicates if an index is an exact match, or should also be post-filtered with a value matcher.
boolean	isInvertible() Indicates if an index can be inverted for use with a 'NOT' filter.
ColumnIndexCapabilities	merge(ColumnIndexCapabilities other)

Methods inherited from class java.lang.Object

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

Constructor Detail

SimpleColumnIndexCapabilities

public SimpleColumnIndexCapabilities(boolean invertible,
                                     boolean exact)

Method Detail

getConstant

public static ColumnIndexCapabilities getConstant()

ColumnIndexCapabilities to use for constant values (including 'null' values for 'missing' columns)

isInvertible

public boolean isInvertible()

Description copied from interface: ColumnIndexCapabilities

Indicates if an index can be inverted for use with a 'NOT' filter. Some types of indexes may not be invertible, such as those which provide false positive matches.

Specified by:

isInvertible in interface ColumnIndexCapabilities

isExact

public boolean isExact()

Description copied from interface: ColumnIndexCapabilities

Indicates if an index is an exact match, or should also be post-filtered with a value matcher. Filters which are not an exact match must always use a value matcher as a post-filter, even if they have an index.

Specified by:

isExact in interface ColumnIndexCapabilities

merge

public ColumnIndexCapabilities merge(ColumnIndexCapabilities other)

Specified by:

merge in interface ColumnIndexCapabilities

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object