org.apache.kahadb.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

static class	BTreeVisitor.AndVisitor<Key,Value>
static class	BTreeVisitor.BetweenVisitor<Key extends java.lang.Comparable<Key>,Value>
static class	BTreeVisitor.GTEVisitor<Key extends java.lang.Comparable<Key>,Value>
static class	BTreeVisitor.GTVisitor<Key extends java.lang.Comparable<Key>,Value>
static class	BTreeVisitor.LTEVisitor<Key extends java.lang.Comparable<Key>,Value>
static class	BTreeVisitor.LTVisitor<Key extends java.lang.Comparable<Key>,Value>
static class	BTreeVisitor.OrVisitor<Key,Value>
static interface	BTreeVisitor.Predicate<Key>
static class	BTreeVisitor.PredicateVisitor<Key,Value>

Method Summary

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(java.util.List<Key> keys, java.util.List<Value> values) The keys and values of a BTree leaf node.

Method Detail

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(java.util.List<Key> keys,
           java.util.List<Value> values)

The keys and values of a BTree leaf node.

Parameters:

keys -

values -