Expert: constructs an IndexWriter on specific commit point, with a custom {@link IndexDeletionPolicy}, for the index in

CopyC#

d

. Text will be analyzed with

CopyC#

a

.

This is only meaningful if you've used a {@link IndexDeletionPolicy} in that past that keeps more than just the last commit.

This operation is similar to {@link #Rollback()}, except that method can only rollback what's been done with the current instance of IndexWriter since its last commit, whereas this method can rollback to an arbitrary commit point from the past, assuming the {@link IndexDeletionPolicy} has preserved past commits.

NOTE: autoCommit (see above) is set to false with this constructor.

has this index open (

CopyC#

write.lock

could not be obtained)

if it does not exist and

CopyC#

create

is

CopyC#

false

or if there is any other low-level IO error

public IndexWriter(
	Directory d,
	Analyzer a,
	IndexDeletionPolicy deletionPolicy,
	IndexWriter..::..MaxFieldLength mfl,
	IndexCommit commit
)

Public Sub New ( _
	d As Directory, _
	a As Analyzer, _
	deletionPolicy As IndexDeletionPolicy, _
	mfl As IndexWriter..::..MaxFieldLength, _
	commit As IndexCommit _
)

public:
IndexWriter(
	Directory^ d, 
	Analyzer^ a, 
	IndexDeletionPolicy^ deletionPolicy, 
	IndexWriter..::..MaxFieldLength^ mfl, 
	IndexCommit^ commit
)