org.apache.jackrabbit.oak.plugins.segment.compaction

Enum CompactionStrategy.CleanupType

java.lang.Object

java.lang.Enum<CompactionStrategy.CleanupType>

org.apache.jackrabbit.oak.plugins.segment.compaction.CompactionStrategy.CleanupType

All Implemented Interfaces:

Serializable, Comparable<CompactionStrategy.CleanupType>

Enclosing class:

CompactionStrategy

public static enum CompactionStrategy.CleanupType
extends Enum<CompactionStrategy.CleanupType>

Enum Constant Summary

Enum Constants

Enum Constant and Description
CLEAN_ALL CLEAN_ALL must be used in conjunction with cloneBinaries otherwise segments can go away (SegmentNotFoundException)
CLEAN_NONE
CLEAN_OLD CLEAN_OLD with cloneBinaries

Method Summary

Methods

Modifier and Type	Method and Description
static CompactionStrategy.CleanupType	valueOf(String name) Returns the enum constant of this type with the specified name.
static CompactionStrategy.CleanupType[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

CLEAN_ALL

public static final CompactionStrategy.CleanupType CLEAN_ALL

CLEAN_ALL must be used in conjunction with cloneBinaries otherwise segments can go away (SegmentNotFoundException)

Pros: best compaction results

Cons: larger repo size during compaction (2x). High chances that a currently running diff (e.g. observation) fails with SegmentNotFoundException.

CLEAN_NONE

public static final CompactionStrategy.CleanupType CLEAN_NONE

CLEAN_OLD

public static final CompactionStrategy.CleanupType CLEAN_OLD

CLEAN_OLD with cloneBinaries

Pros: better compaction results

Cons: larger repo size during compaction (2x). SegmentNotFoundException with insufficiently large values for olderThan.

CLEAN_OLD without cloneBinaries

Pros: weakest compaction results, smaller size during compaction (1x + size of data-segments).

Cons: SegmentNotFoundException with insufficiently large values for olderThan.

Method Detail

values

public static CompactionStrategy.CleanupType[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (CompactionStrategy.CleanupType c : CompactionStrategy.CleanupType.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static CompactionStrategy.CleanupType valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null