Package org.apache.activemq.store.kahadb.disk.index

Interface BTreeVisitor<Key,Value>

Type Parameters:

Key -

Value -

All Known Implementing Classes:

BTreeVisitor.AndVisitor, BTreeVisitor.BetweenVisitor, BTreeVisitor.GTEVisitor, BTreeVisitor.GTVisitor, BTreeVisitor.LTEVisitor, BTreeVisitor.LTVisitor, BTreeVisitor.OrVisitor, BTreeVisitor.PredicateVisitor

public interface BTreeVisitor<Key,Value>

Interface used to selectively visit the entries in a BTree.

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static class	BTreeVisitor.AndVisitor<Key,Value>
static class	BTreeVisitor.BetweenVisitor<Key extends Comparable<Key>,Value>
static class	BTreeVisitor.GTEVisitor<Key extends Comparable<Key>,Value>
static class	BTreeVisitor.GTVisitor<Key extends Comparable<Key>,Value>
static class	BTreeVisitor.LTEVisitor<Key extends Comparable<Key>,Value>
static class	BTreeVisitor.LTVisitor<Key extends Comparable<Key>,Value>
static class	BTreeVisitor.OrVisitor<Key,Value>
static interface	BTreeVisitor.Predicate<Key>
static class	BTreeVisitor.PredicateVisitor<Key,Value>

Method Summary

Modifier and Type	Method	Description
boolean	isInterestedInKeysBetween(Key first, Key second)	Do you want to visit the range of BTree entries between the first and and second key?
void	visit(List<Key> keys, List<Value> values)	The keys and values of a BTree leaf node.

Method Details

isInterestedInKeysBetween

boolean isInterestedInKeysBetween(Key first,
 Key second)

Do you want to visit the range of BTree entries between the first and and second key?

Parameters:

first - if null indicates the range of values before the second key.

second - if null indicates the range of values after the first key.

Returns:

true if you want to visit the values between the first and second key.

visit

void visit(List<Key> keys,
 List<Value> values)

The keys and values of a BTree leaf node.

Parameters:

keys -

values -