org.javimmutable.collections.cursors
Class ValueFunctionCursor
java.lang.Object
org.javimmutable.collections.cursors.ValueFunctionCursor
- Direct Known Subclasses:
- CloseableValueFunctionCursor
public abstract class ValueFunctionCursor
- extends Object
Provides standard Cursor objects for iterating over the values of arbitrary functions.
The cursors are actually created using a factory object that can produce the functions.
The factories ensure that a Cursor is restartable and permits lazy evaluation of
the beginning of iteration. The function will only be created if the starting
Cursor's start() or next() method is invoked.
The Cursors are not immutable but are designed to act as though they are.
Cursors remember their next value between invocations so that standard look ahead
behavior is preserved.
The Cursors are not thread safe.
Method Summary |
static
|
of(A factory)
Produces a non-thread safe Cursor to traverse the values returned by a function. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
ValueFunctionCursor
public ValueFunctionCursor()
of
public static <T,F extends ValueFunction<T>,A extends ValueFunctionFactory<T,F>> Cursor<T> of(A factory)
- Produces a non-thread safe Cursor to traverse the values returned by a function. The function
will be created using the factory when the traversal is initiated by calling the next() method.
Multiple invocations of the initial Cursor's next() method will produce multiple functions
using the factory.
- Type Parameters:
T
- - Parameters:
factory
-
- Returns:
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