com.koloboke.collect

Interface DoubleCursor

All Superinterfaces:

Cursor

public interface DoubleCursor
extends Cursor

A mutable pointer to the element in an iteration of doubles.

Basic DoubleCursor usage idiom is:

for (DoubleCursor cur = collection.cursor(); cur.moveNext();) {
     // Work with cur.elem()
     // Call cur.remove() to remove the current entry
 }

See Also:

DoubleCollection.cursor()

Method Summary

Methods

Modifier and Type	Method and Description
double	elem() Returns the element to which the cursor currently points.
void	forEachForward(DoubleConsumer action) Performs the given action for each element of the iteration after the cursor in forward direction until all elements have been processed or the action throws an exception.

Methods inherited from interface com.koloboke.collect.Cursor

moveNext, remove

Method Detail

forEachForward

void forEachForward(@Nonnull
                  DoubleConsumer action)

Performs the given action for each element of the iteration after the cursor in forward direction until all elements have been processed or the action throws an exception. Exceptions thrown by the action are relayed to the caller.

cur.forEachForward(action) is exact equivalent of

 while (cur.moveNext())
     action.accept(cur.elem());

Parameters:

action - the action to be performed for each element

elem

double elem()

Returns the element to which the cursor currently points.

Throws IllegalStateException, if the cursor isn't pointing to any element: if it is in front of the first element, after the last, or the current element has been removed using Cursor.remove() operation.

Returns:

the element to which the cursor currently points

Throws:

IllegalStateException - if this cursor is initially in front of the first element and Cursor.moveNext() hasn't been called yet, or the previous call of moveNext returned false, or remove() has been performed after the previous cursor movement