jetbrains.exodus.tree

Class TreeCursor

java.lang.Object

jetbrains.exodus.tree.TreeCursor

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable, jetbrains.exodus.env.Cursor, ITreeCursor

Direct Known Subclasses:

TreeCursorMutable

public class TreeCursor
extends java.lang.Object
implements ITreeCursor

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	canGoDown

Fields inherited from interface jetbrains.exodus.tree.ITreeCursor

EMPTY_CURSOR

Constructor Summary

Constructors

Constructor and Description
TreeCursor(@NotNull TreeTraverser traverser)
TreeCursor(@NotNull TreeTraverser traverser, boolean alreadyIn)

Method Summary

Modifier and Type	Method and Description
void	close()
int	count()
boolean	deleteCurrent()
@NotNull jetbrains.exodus.ByteIterable	getKey()
boolean	getLast()
boolean	getNext()
boolean	getNextDup()
boolean	getNextNoDup()
boolean	getPrev()
boolean	getPrevDup()
boolean	getPrevNoDup()
boolean	getSearchBoth(@NotNull jetbrains.exodus.ByteIterable key, @NotNull jetbrains.exodus.ByteIterable value)
jetbrains.exodus.ByteIterable	getSearchBothRange(@NotNull jetbrains.exodus.ByteIterable key, @NotNull jetbrains.exodus.ByteIterable value)
jetbrains.exodus.ByteIterable	getSearchKey(@NotNull jetbrains.exodus.ByteIterable key)
jetbrains.exodus.ByteIterable	getSearchKeyRange(@NotNull jetbrains.exodus.ByteIterable key)
ITree	getTree()
@NotNull jetbrains.exodus.ByteIterable	getValue()
protected boolean	hasNext()
protected boolean	hasPrev()
boolean	isMutable()
protected @Nullable jetbrains.exodus.ByteIterable	moveTo(@NotNull jetbrains.exodus.ByteIterable key, @Nullable jetbrains.exodus.ByteIterable value, boolean rangeSearch)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

canGoDown

protected boolean canGoDown

Constructor Detail

TreeCursor

public TreeCursor(@NotNull
                  @NotNull TreeTraverser traverser)

TreeCursor

public TreeCursor(@NotNull
                  @NotNull TreeTraverser traverser,
                  boolean alreadyIn)

Method Detail

hasNext

protected boolean hasNext()

hasPrev

protected boolean hasPrev()

getNext

public boolean getNext()

Specified by:

getNext in interface jetbrains.exodus.env.Cursor

getPrev

public boolean getPrev()

Specified by:

getPrev in interface jetbrains.exodus.env.Cursor

getLast

public boolean getLast()

Specified by:

getLast in interface jetbrains.exodus.env.Cursor

getKey

@NotNull
public @NotNull jetbrains.exodus.ByteIterable getKey()

Specified by:

getKey in interface jetbrains.exodus.env.Cursor

getValue

@NotNull
public @NotNull jetbrains.exodus.ByteIterable getValue()

Specified by:

getValue in interface jetbrains.exodus.env.Cursor

getNextDup

public boolean getNextDup()

Specified by:

getNextDup in interface jetbrains.exodus.env.Cursor

getNextNoDup

public boolean getNextNoDup()

Specified by:

getNextNoDup in interface jetbrains.exodus.env.Cursor

getPrevDup

public boolean getPrevDup()

Specified by:

getPrevDup in interface jetbrains.exodus.env.Cursor

getPrevNoDup

public boolean getPrevNoDup()

Specified by:

getPrevNoDup in interface jetbrains.exodus.env.Cursor

getSearchKey

public jetbrains.exodus.ByteIterable getSearchKey(@NotNull
                                                  @NotNull jetbrains.exodus.ByteIterable key)

Specified by:

getSearchKey in interface jetbrains.exodus.env.Cursor

getSearchKeyRange

public jetbrains.exodus.ByteIterable getSearchKeyRange(@NotNull
                                                       @NotNull jetbrains.exodus.ByteIterable key)

Specified by:

getSearchKeyRange in interface jetbrains.exodus.env.Cursor

getSearchBoth

public boolean getSearchBoth(@NotNull
                             @NotNull jetbrains.exodus.ByteIterable key,
                             @NotNull
                             @NotNull jetbrains.exodus.ByteIterable value)

Specified by:

getSearchBoth in interface jetbrains.exodus.env.Cursor

getSearchBothRange

public jetbrains.exodus.ByteIterable getSearchBothRange(@NotNull
                                                        @NotNull jetbrains.exodus.ByteIterable key,
                                                        @NotNull
                                                        @NotNull jetbrains.exodus.ByteIterable value)

Specified by:

getSearchBothRange in interface jetbrains.exodus.env.Cursor

count

public int count()

Specified by:

count in interface jetbrains.exodus.env.Cursor

close

public void close()

Specified by:

close in interface java.io.Closeable

Specified by:

close in interface java.lang.AutoCloseable

Specified by:

close in interface jetbrains.exodus.env.Cursor

deleteCurrent

public boolean deleteCurrent()

Specified by:

deleteCurrent in interface jetbrains.exodus.env.Cursor

isMutable

public boolean isMutable()

Specified by:

isMutable in interface jetbrains.exodus.env.Cursor

Specified by:

isMutable in interface ITreeCursor

getTree

public ITree getTree()

Specified by:

getTree in interface ITreeCursor

moveTo

@Nullable
protected @Nullable jetbrains.exodus.ByteIterable moveTo(@NotNull
                                                                   @NotNull jetbrains.exodus.ByteIterable key,
                                                                   @Nullable
                                                                   @Nullable jetbrains.exodus.ByteIterable value,
                                                                   boolean rangeSearch)