Package org.apache.gravitino.stats

Class PartitionRange

java.lang.Object

org.apache.gravitino.stats.PartitionRange

public class PartitionRange
extends Object

PartitionRange represents a range of partitions defined by lower and upper partition names.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	PartitionRange.BoundType	Enum representing the type of bounds for a partition range.

Method Summary

Modifier and Type	Method	Description
static PartitionRange	between(String lowerPartitionName, PartitionRange.BoundType lowerBoundType, String upperPartitionName, PartitionRange.BoundType upperBoundType)	Creates a PartitionRange which has both lower and upper partition names.
static PartitionRange	between(String lowerPartitionName, PartitionRange.BoundType lowerBoundType, String upperPartitionName, PartitionRange.BoundType upperBoundType, SortOrder comparator)	Creates a PartitionRange which has both lower and upper partition names with a specific comparator type.
SortOrder	comparator()	Returns a comparator for comparing partitions within this range.
static PartitionRange	downTo(String lowerPartitionName, PartitionRange.BoundType lowerBoundType)	Creates a PartitionRange which only has lower bound partition name.
static PartitionRange	downTo(String lowerPartitionName, PartitionRange.BoundType lowerBoundType, SortOrder comparator)	Creates a PartitionRange which only has lower bound partition name with a specific comparator type.
Optional<PartitionRange.BoundType>	lowerBoundType()	Returns the type of the lower bound if it exists.
Optional<String>	lowerPartitionName()	Returns the lower partition name if it exists.
Optional<PartitionRange.BoundType>	upperBoundType()	Returns the type of the upper bound if it exists.
Optional<String>	upperPartitionName()	Returns the upper partition name if it exists.
static PartitionRange	upTo(String upperPartitionName, PartitionRange.BoundType upperBoundType)	Creates a PartitionRange which only has upper bound partition name.
static PartitionRange	upTo(String upperPartitionName, PartitionRange.BoundType upperBoundType, SortOrder comparator)	Creates a PartitionRange which only has upper bound partition name with a specific comparator type.

Methods inherited from class java.lang.Object

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

Method Details

upTo

public static PartitionRange upTo(String upperPartitionName,
 PartitionRange.BoundType upperBoundType)

Creates a PartitionRange which only has upper bound partition name.

Parameters:

upperPartitionName - the upper partition name.

upperBoundType - the type of the upper bound (open or closed).

Returns:

a PartitionRange with the upper partition name.

upTo

public static PartitionRange upTo(String upperPartitionName,
 PartitionRange.BoundType upperBoundType,
 SortOrder comparator)

Creates a PartitionRange which only has upper bound partition name with a specific comparator type.

Parameters:

upperPartitionName - the upper partition name.

upperBoundType - the type of the upper bound (open or closed).

comparator - the comparator to use for this range.

Returns:

a PartitionRange with the upper partition name and the specified comparator type.

downTo

public static PartitionRange downTo(String lowerPartitionName,
 PartitionRange.BoundType lowerBoundType)

Creates a PartitionRange which only has lower bound partition name.

Parameters:

lowerPartitionName - the lower partition name.

lowerBoundType - the type of the lower bound (open or closed).

Returns:

a PartitionRange with the lower partition name.

downTo

public static PartitionRange downTo(String lowerPartitionName,
 PartitionRange.BoundType lowerBoundType,
 SortOrder comparator)

Creates a PartitionRange which only has lower bound partition name with a specific comparator type.

Parameters:

lowerPartitionName - the lower partition name.

lowerBoundType - the type of the lower bound (open or closed).

comparator - the comparator to use for this range.

Returns:

a PartitionRange with the lower partition name and the specified comparator type.

between

public static PartitionRange between(String lowerPartitionName,
 PartitionRange.BoundType lowerBoundType,
 String upperPartitionName,
 PartitionRange.BoundType upperBoundType)

Creates a PartitionRange which has both lower and upper partition names.

Parameters:

lowerPartitionName - the lower partition name.

lowerBoundType - the type of the lower bound (open or closed).

upperPartitionName - the upper partition name.

upperBoundType - the type of the upper bound (open or closed).

Returns:

a PartitionRange with both lower and upper partition names.

between

public static PartitionRange between(String lowerPartitionName,
 PartitionRange.BoundType lowerBoundType,
 String upperPartitionName,
 PartitionRange.BoundType upperBoundType,
 SortOrder comparator)

Creates a PartitionRange which has both lower and upper partition names with a specific comparator type.

Parameters:

lowerPartitionName - the lower partition name.

lowerBoundType - the type of the lower bound (open or closed).

upperPartitionName - the upper partition name.

upperBoundType - the type of the upper bound (open or closed).

comparator - the comparator to use for this range.

Returns:

a PartitionRange with both lower and upper partition names and the specified comparator type.

lowerPartitionName

public Optional<String> lowerPartitionName()

Returns the lower partition name if it exists.

Returns:

an Optional containing the lower partition name if it exists, otherwise an empty Optional.

upperPartitionName

public Optional<String> upperPartitionName()

Returns the upper partition name if it exists.

Returns:

an Optional containing the upper partition name if it exists, otherwise an empty Optional.

lowerBoundType

public Optional<PartitionRange.BoundType> lowerBoundType()

Returns the type of the lower bound if it exists.

Returns:

an Optional containing the BoundType of the lower bound if it exists, otherwise an empty Optional.

upperBoundType

public Optional<PartitionRange.BoundType> upperBoundType()

Returns the type of the upper bound if it exists.

Returns:

an Optional containing the BoundType of the upper bound if it exists, otherwise an empty Optional.

comparator

public SortOrder comparator()

Returns a comparator for comparing partitions within this range.

Returns:

a PartitionComparator that can be used to compare partitions.