com.antelmann.util
Class VerboseFilter.Adapter<T>

java.lang.Object
  com.antelmann.util.VerboseFilter.Adapter<T>

All Implemented Interfaces:

Filter<T>, VerboseFilter<T>, Wrapped<Filter<T>>

Enclosing interface:

VerboseFilter<T>

public static class VerboseFilter.Adapter<T>
extends Object
implements VerboseFilter<T>, Wrapped<Filter<T>>

Nested Class Summary

Nested classes/interfaces inherited from interface com.antelmann.util.VerboseFilter

VerboseFilter.Adapter<T>

Field Summary

Fields inherited from interface com.antelmann.util.Filter

EXCLUDE_ALL_FILTER, INCLUDE_ALL_FILTER

Constructor Summary

VerboseFilter.Adapter()

VerboseFilter.Adapter(Filter<T> filter)

VerboseFilter.Adapter(Filter<T> filter, PatternExtractor<? super T,String> messageExtractor)

VerboseFilter.Adapter(PatternExtractor<? super T,String> messageExtractor)
allows those entries that generate a null message by the extractor

Method Summary

boolean	accept(T entry) returns true only if the given entry is accepted by this filter
static String	extractMessage(Filter<?> filter, Object entry) convenience method to easily extract a rejection message from any filter
static String	extractMessage(Filter<?> filter, Object entry, String defaultMessage) convenience method to easily extract a rejection message from any filter
PatternExtractor<? super T,String>	getMessageExtractor()
String	getRejectionMessage(T entry) provides a message telling the caller why a given element is not accepted by this filter
void	setMessageExtractor(PatternExtractor<? super T,String> pe)
Filter<T>	unwrap() returns the embedded instance that this wrapper encloses

Methods inherited from class java.lang.Object

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

Constructor Detail

VerboseFilter.Adapter

public VerboseFilter.Adapter()

VerboseFilter.Adapter

public VerboseFilter.Adapter(Filter<T> filter)

VerboseFilter.Adapter

public VerboseFilter.Adapter(PatternExtractor<? super T,String> messageExtractor)

allows those entries that generate a null message by the extractor

VerboseFilter.Adapter

public VerboseFilter.Adapter(Filter<T> filter,
                             PatternExtractor<? super T,String> messageExtractor)

Method Detail

getMessageExtractor

public PatternExtractor<? super T,String> getMessageExtractor()

setMessageExtractor

public void setMessageExtractor(PatternExtractor<? super T,String> pe)

accept

public boolean accept(T entry)

Description copied from interface: Filter

returns true only if the given entry is accepted by this filter

Specified by:

accept in interface Filter<T>

unwrap

public Filter<T> unwrap()

Description copied from interface: Wrapped

returns the embedded instance that this wrapper encloses

Specified by:

unwrap in interface Wrapped<Filter<T>>

getRejectionMessage

public String getRejectionMessage(T entry)

Description copied from interface: VerboseFilter

provides a message telling the caller why a given element is not accepted by this filter

Specified by:

getRejectionMessage in interface VerboseFilter<T>

Parameters:

entry - the element that is to be filtered; the entry may be null (in which case a generic rejection message is provided

Returns:

null if the element is accepted by this filter or an appropriate message telling why the given element is not accepted

extractMessage

public static String extractMessage(Filter<?> filter,
                                    Object entry)
                             throws ClassCastException

convenience method to easily extract a rejection message from any filter

Throws:

ClassCastException

extractMessage

public static String extractMessage(Filter<?> filter,
                                    Object entry,
                                    String defaultMessage)
                             throws ClassCastException

convenience method to easily extract a rejection message from any filter

Throws:

ClassCastException