Package com.vladsch.flexmark.tree.iteration

Class IteratorInstance<N,R>

java.lang.Object

com.vladsch.flexmark.tree.iteration.IteratorInstance<N,R>

All Implemented Interfaces:

ValueIteration<R>, VoidIteration

public final class IteratorInstance<N,R>
extends java.lang.Object
implements ValueIteration<R>

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	IteratorInstance.Iteration<V>

Field Summary

Fields inherited from interface com.vladsch.flexmark.tree.iteration.VoidIteration

NULL

Constructor Summary

Constructors

Constructor	Description
IteratorInstance(IterationConditions<N> iterationConditions, java.util.function.Predicate<? super N> filterPredicate, java.util.function.Predicate<? super N> recursionPredicate, N element)
IteratorInstance(IterationConditions<N> iterationConditions, java.util.function.Predicate<? super N> filterPredicate, java.util.function.Predicate<? super N> recursionPredicate, N element, java.lang.Object defaultValue)

Method Summary

Modifier and Type	Method	Description
void	doBreak(int recursionLevel)	Break out of given recursion level
void	doComplete()	Complete current iteration, ie.
void	doContinue(int recursionLevel)	Continue with the next iteration of the given recursion level
void	doReturn()	Break out of all recursion levels and return current result value for the loop if value loop
int	getAcceptCount()
MutableDataHolder	getData()	Per loop instance data instance can be used to store context information
R	getDefaultValue()
boolean	getHaveAcceptableNext()
boolean	getHaveNext()
int	getLoopCount()
N	getMatch()
int	getRecursionLevel()
R	getResult()
int	getTotalAcceptCount()
int	getTotalLoopCount()
void	ifIncomplete(java.lang.Runnable runnable)	Run the passed code only if the current iteration is not complete
boolean	isComplete()
boolean	isDefaultResult()
boolean	isIncomplete()
boolean	isTerminated()
void	iterate(ValueIterationConsumer<? super N,R> consumer)
void	iterate(VoidIterationConsumer<? super N> consumer)
void	Return(java.lang.Object value)	Set result value and terminate all recursions
void	setResult(java.lang.Object value)	Set the result which will be returned by the loop if terminated without ValueIteration.Return(Object) call.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.vladsch.flexmark.tree.iteration.VoidIteration

doBreak, doContinue

Constructor Detail

IteratorInstance

public IteratorInstance(@NotNull
                        IterationConditions<N> iterationConditions,
                        @NotNull
                        java.util.function.Predicate<? super N> filterPredicate,
                        @NotNull
                        java.util.function.Predicate<? super N> recursionPredicate,
                        @NotNull
                        N element)

IteratorInstance

public IteratorInstance(@NotNull
                        IterationConditions<N> iterationConditions,
                        @NotNull
                        java.util.function.Predicate<? super N> filterPredicate,
                        @NotNull
                        java.util.function.Predicate<? super N> recursionPredicate,
                        @NotNull
                        N element,
                        @NotNull
                        java.lang.Object defaultValue)

Method Detail

iterate

public void iterate(@NotNull
                    VoidIterationConsumer<? super N> consumer)

iterate

public void iterate(@NotNull
                    ValueIterationConsumer<? super N,R> consumer)

getHaveNext

public boolean getHaveNext()

Specified by:

getHaveNext in interface VoidIteration

Returns:

true if have next element, does not mean it matches filters, just raw next from loop iterator, fast check

getHaveAcceptableNext

public boolean getHaveAcceptableNext()

Specified by:

getHaveAcceptableNext in interface VoidIteration

Returns:

true if have next element and it passes element filters.

NOTE: ValueIterationConsumerAdapter not invoked. It is part of the consumer.accept() call hierarchy and can have code side-effects. Only predicate filters are tested. This does not mean the final consumer will see this value.

setResult

public void setResult(@NotNull
                      java.lang.Object value)

Description copied from interface: ValueIteration

Set the result which will be returned by the loop if terminated without ValueIteration.Return(Object) call.

Specified by:

setResult in interface ValueIteration<N>

Parameters:

value - value to return from the loop

getResult

@NotNull
public R getResult()

Specified by:

getResult in interface ValueIteration<N>

Returns:

current result value

Return

public void Return(@NotNull
                   java.lang.Object value)

Description copied from interface: ValueIteration

Set result value and terminate all recursions

Specified by:

Return in interface ValueIteration<N>

Parameters:

value - value to return for the result of the loop

doReturn

public void doReturn()

Description copied from interface: VoidIteration

Break out of all recursion levels and return current result value for the loop if value loop

Specified by:

doReturn in interface VoidIteration

doContinue

public void doContinue(int recursionLevel)

Description copied from interface: VoidIteration

Continue with the next iteration of the given recursion level

Specified by:

doContinue in interface VoidIteration

Parameters:

recursionLevel - 0 current, <0 previous recursion levels, gt;0 actual recursion level

doBreak

public void doBreak(int recursionLevel)

Description copied from interface: VoidIteration

Break out of given recursion level

Specified by:

doBreak in interface VoidIteration

Parameters:

recursionLevel - 0 current, lt;0 previous recursion levels, gt;0 actual recursion level

getData

public MutableDataHolder getData()

Description copied from interface: VoidIteration

Per loop instance data instance can be used to store context information

Exists between VoidIterationConsumer.beforeStart(VoidIteration) and ValueIterationConsumer.afterEnd(ValueIteration) for consumer and

lifetime of IteratorInstance for caller of TreeIterator.iterate(N, R, com.vladsch.flexmark.tree.iteration.ValueIterationConsumer<? super N, R>)

Specified by:

getData in interface VoidIteration

Returns:

per loop instance mutable data holder

getMatch

@Nullable
public N getMatch()

isComplete

public boolean isComplete()

Specified by:

isComplete in interface VoidIteration

Returns:

true if current iteration is complete ie. had ( Break(), Continue(), Return(), Complete())

isIncomplete

public boolean isIncomplete()

Specified by:

isIncomplete in interface VoidIteration

Returns:

true if current iteration is not complete, ie. need to continue processing

ifIncomplete

public void ifIncomplete(@NotNull
                         java.lang.Runnable runnable)

Description copied from interface: VoidIteration

Run the passed code only if the current iteration is not complete

Specified by:

ifIncomplete in interface VoidIteration

Parameters:

runnable - to run

doComplete

public void doComplete()

Description copied from interface: VoidIteration

Complete current iteration, ie. isComplete() will report true and isIncomplete() false

Purely a convenience feature to use without needing to track if break or continue have been executed

Specified by:

doComplete in interface VoidIteration

isTerminated

public boolean isTerminated()

Specified by:

isTerminated in interface VoidIteration

Returns:

true if looping terminated by VoidIteration.doReturn(), or VoidIteration.doBreak() of the last recursion level.

getLoopCount

public int getLoopCount()

Specified by:

getLoopCount in interface VoidIteration

Returns:

times through the loop of the current recursion level, includes skipped elements due to filtering

getAcceptCount

public int getAcceptCount()

Specified by:

getAcceptCount in interface VoidIteration

Returns:

total times consumer was invoked, ie. valid elements

getTotalLoopCount

public int getTotalLoopCount()

Specified by:

getTotalLoopCount in interface VoidIteration

Returns:

current loop count across all recursions

getTotalAcceptCount

public int getTotalAcceptCount()

Specified by:

getTotalAcceptCount in interface VoidIteration

Returns:

accept count across all recursions

getRecursionLevel

public int getRecursionLevel()

Specified by:

getRecursionLevel in interface VoidIteration

Returns:

count of recursion level, can use in Break(recursionLevel) or Continue(recursionLevel) to break/continue a particular recursion

isDefaultResult

public boolean isDefaultResult()

Specified by:

isDefaultResult in interface ValueIteration<N>

Returns:

true if the current loop result value was never set (ie. only set at loop instantiation with defaultValue)

NOTE: does not test current value with equality to default value, set by ValueIteration.setResult(Object) or ValueIteration.Return(Object)

getDefaultValue

@NotNull
public R getDefaultValue()

Specified by:

getDefaultValue in interface ValueIteration<N>

Returns:

defaultValue passed to loop instance