Package org.apache.lucene.index

Enum MergePolicy.MergeTrigger

java.lang.Object

java.lang.Enum<MergePolicy.MergeTrigger>

org.apache.lucene.index.MergePolicy.MergeTrigger

All Implemented Interfaces:

Serializable, Comparable<MergePolicy.MergeTrigger>

Enclosing class:

MergePolicy

public static enum MergePolicy.MergeTrigger
extends Enum<MergePolicy.MergeTrigger>

MergeTrigger is passed to MergePolicy.findMerges(MergeTrigger, SegmentInfos) to indicate the event that triggered the merge.

Enum Constant Summary

Enum Constants

Enum Constant	Description
EXPLICIT	Merge has been triggered explicitly by the user.
FULL_FLUSH	Merge was triggered by a full flush.
MERGE_FINISHED	Merge was triggered by a successfully finished merge.
SEGMENT_FLUSH	Merge was triggered by a segment flush.

Method Summary

Modifier and Type	Method	Description
static MergePolicy.MergeTrigger	valueOf(String name)	Returns the enum constant of this type with the specified name.
static MergePolicy.MergeTrigger[]	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

SEGMENT_FLUSH

public static final MergePolicy.MergeTrigger SEGMENT_FLUSH

Merge was triggered by a segment flush.

FULL_FLUSH

public static final MergePolicy.MergeTrigger FULL_FLUSH

Merge was triggered by a full flush. Full flushes can be caused by a commit, NRT reader reopen or a close call on the index writer.

EXPLICIT

public static final MergePolicy.MergeTrigger EXPLICIT

Merge has been triggered explicitly by the user.

MERGE_FINISHED

public static final MergePolicy.MergeTrigger MERGE_FINISHED

Merge was triggered by a successfully finished merge.

Method Detail

values

public static MergePolicy.MergeTrigger[] 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 (MergePolicy.MergeTrigger c : MergePolicy.MergeTrigger.values())
    System.out.println(c);

Returns:

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

valueOf

public static MergePolicy.MergeTrigger 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