Index (OpenHFT/Chronicle-Queue/chronicle-queue 4.0.1-alpha API)

A B C E F G H I L M N O P Q R S T V W Z

A

AbstractChronicle - Class in net.openhft.chronicle.queue.impl.single.work.in.progress: Created by Rob Austin
AbstractChronicle() - Constructor for class net.openhft.chronicle.queue.impl.single.work.in.progress.AbstractChronicle
AbstractChronicleQueue - Class in net.openhft.chronicle.queue.impl
AbstractChronicleQueue() - Constructor for class net.openhft.chronicle.queue.impl.AbstractChronicleQueue
accept(long, long) - Method in interface net.openhft.chronicle.queue.impl.WireBoundsConsumer
acquire(long) - Method in class net.openhft.chronicle.queue.impl.WireStorePool
acquireForReadAt(long) - Method in class net.openhft.chronicle.queue.impl.WirePool
acquireForWriteAt(long) - Method in class net.openhft.chronicle.queue.impl.WirePool
append(Bytes) - Method in class net.openhft.chronicle.queue.impl.ringbuffer.ZippedDocumentAppender: the bytes that you wish to append, this bytes will become zipped and appended to the chronicle using a background thread
append(WriteMarshallable) - Method in interface net.openhft.chronicle.queue.impl.WireStore
appendDocument(Bytes) - Method in class net.openhft.chronicle.queue.impl.single.work.in.progress.IndexedSingleChronicleQueue
appendRollMeta(long) - Method in interface net.openhft.chronicle.queue.impl.WireStore
appendWaitDelay(int) - Method in class net.openhft.chronicle.queue.impl.single.SingleChronicleQueueBuilder
appendWaitDelay() - Method in class net.openhft.chronicle.queue.impl.single.SingleChronicleQueueBuilder
appendWaitLoops(int) - Method in class net.openhft.chronicle.queue.impl.single.SingleChronicleQueueBuilder
appendWaitLoops() - Method in class net.openhft.chronicle.queue.impl.single.SingleChronicleQueueBuilder

B

binary(File) - Static method in class net.openhft.chronicle.queue.impl.single.SingleChronicleQueueBuilder
binary(String) - Static method in class net.openhft.chronicle.queue.impl.single.SingleChronicleQueueBuilder
blockSize(int) - Method in class net.openhft.chronicle.queue.impl.single.SingleChronicleQueueBuilder
blockSize() - Method in class net.openhft.chronicle.queue.impl.single.SingleChronicleQueueBuilder
build() - Method in interface net.openhft.chronicle.queue.ChronicleQueueBuilder
build() - Method in class net.openhft.chronicle.queue.impl.single.SingleChronicleQueueBuilder
bytes() - Method in class net.openhft.chronicle.queue.impl.single.work.in.progress.IndexedSingleChronicleQueue
BytesRingBuffer - Class in net.openhft.chronicle.queue.impl.ringbuffer: Multi writer single Reader, zero GC, ring buffer, which takes bytes
BytesRingBuffer(Bytes) - Constructor for class net.openhft.chronicle.queue.impl.ringbuffer.BytesRingBuffer
BytesRingBuffer.BytesProvider - Interface in net.openhft.chronicle.queue.impl.ringbuffer

C

chronicle() - Method in class net.openhft.chronicle.queue.impl.single.work.in.progress.SingleAppender
ChronicleQueue - Interface in net.openhft.chronicle.queue: Chronicle (in a generic sense) is a Java project focused on building a persisted low latency messaging framework for high performance and critical applications.
ChronicleQueueBuilder - Interface in net.openhft.chronicle.queue: Created by peter.lawrey on 30/01/15.
clear() - Method in interface net.openhft.chronicle.queue.ChronicleQueue: Remove all the entries in the queue.
clear() - Method in class net.openhft.chronicle.queue.impl.AbstractChronicleQueue
clear() - Method in class net.openhft.chronicle.queue.impl.single.work.in.progress.IndexedSingleChronicleQueue
clone() - Method in class net.openhft.chronicle.queue.impl.single.SingleChronicleQueueBuilder
close() - Method in class net.openhft.chronicle.queue.impl.AbstractChronicleQueue
close() - Method in class net.openhft.chronicle.queue.impl.ringbuffer.ZippedDocumentAppender: terminates the background thread
close() - Method in class net.openhft.chronicle.queue.impl.single.work.in.progress.IndexedSingleChronicleQueue
compare(Excerpt) - Method in interface net.openhft.chronicle.queue.ExcerptComparator: Given some criteria, determine if the entry is -1 = below range, +1 = above range and 0 in range Can be used for exact matches or a range of values.
Compression - Enum in net.openhft.chronicle.queue.impl.single.work.in.progress: Created by peter.lawrey on 06/02/15.
createAppender() - Method in interface net.openhft.chronicle.queue.ChronicleQueue: An Appender can be used to write new excerpts sequentially to the upper.
createAppender() - Method in class net.openhft.chronicle.queue.impl.AbstractChronicleQueue
createAppender() - Method in class net.openhft.chronicle.queue.impl.single.work.in.progress.IndexedSingleChronicleQueue
createExcerpt() - Method in interface net.openhft.chronicle.queue.ChronicleQueue: An Excerpt can be used access entries randomly and optionally change them.
createExcerpt() - Method in class net.openhft.chronicle.queue.impl.AbstractChronicleQueue
createExcerpt() - Method in class net.openhft.chronicle.queue.impl.single.work.in.progress.IndexedSingleChronicleQueue
createTailer() - Method in interface net.openhft.chronicle.queue.ChronicleQueue: A Tailer can be used to read sequentially from the lower of a given position.
createTailer() - Method in class net.openhft.chronicle.queue.impl.AbstractChronicleQueue
createTailer() - Method in class net.openhft.chronicle.queue.impl.single.work.in.progress.IndexedSingleChronicleQueue
current() - Method in interface net.openhft.chronicle.queue.RollCycle
cycle() - Method in interface net.openhft.chronicle.queue.ExcerptAppender
cycle() - Method in interface net.openhft.chronicle.queue.ExcerptTailer
cycle() - Method in class net.openhft.chronicle.queue.impl.AbstractChronicleQueue
cycle() - Method in class net.openhft.chronicle.queue.impl.single.work.in.progress.SingleAppender
cycle() - Method in class net.openhft.chronicle.queue.impl.single.work.in.progress.SingleTailer
cycle() - Method in interface net.openhft.chronicle.queue.impl.WireStore

E

ERR_MSG - Static variable in class net.openhft.chronicle.queue.impl.ringbuffer.ZippedDocumentAppender
Excerpt - Interface in net.openhft.chronicle.queue: The main data container of a ChronicleQueue, an extended version of ExcerptTailer which also facilitates random access.
ExcerptAppender - Interface in net.openhft.chronicle.queue: The component that facilitates sequentially writing data to a ChronicleQueue.
ExcerptCommon - Interface in net.openhft.chronicle.queue
ExcerptComparator - Interface in net.openhft.chronicle.queue: For a binary search, provide a comparison of Excerpts
Excerpts - Class in net.openhft.chronicle.queue.impl
Excerpts() - Constructor for class net.openhft.chronicle.queue.impl.Excerpts
ExcerptTailer - Interface in net.openhft.chronicle.queue: The component that facilitates sequentially reading data from a ChronicleQueue.

F

findMatch(ExcerptComparator) - Method in interface net.openhft.chronicle.queue.Excerpt: Find any entry which return a match i.e.
findRange(long[], ExcerptComparator) - Method in interface net.openhft.chronicle.queue.Excerpt: Find entries which return a match.
firstAvailableIndex() - Method in interface net.openhft.chronicle.queue.ChronicleQueue
firstAvailableIndex() - Method in class net.openhft.chronicle.queue.impl.AbstractChronicleQueue
firstAvailableIndex() - Method in class net.openhft.chronicle.queue.impl.single.work.in.progress.IndexedSingleChronicleQueue
firstBytes() - Method in class net.openhft.chronicle.queue.impl.single.work.in.progress.IndexedSingleChronicleQueue
firstCycle() - Method in class net.openhft.chronicle.queue.impl.AbstractChronicleQueue
forFormat(String) - Static method in interface net.openhft.chronicle.queue.RollCycle
forLength(int) - Static method in interface net.openhft.chronicle.queue.RollCycle
format() - Method in interface net.openhft.chronicle.queue.RollCycle
format() - Method in enum net.openhft.chronicle.queue.RollCycles
formatFor(long) - Method in class net.openhft.chronicle.queue.RollDateCache: Formats a rollCycle number into a date/time String based on a fixed date/time format.
from(int, String, ZoneId) - Static method in interface net.openhft.chronicle.queue.RollCycle: TODO: refactor

G

getWriteByte() - Method in class net.openhft.chronicle.queue.impl.single.work.in.progress.Header

H

Header - Class in net.openhft.chronicle.queue.impl.single.work.in.progress: Data structure to bind to an off heap representation.
Header() - Constructor for class net.openhft.chronicle.queue.impl.single.work.in.progress.Header
HEADER_OFFSET - Static variable in class net.openhft.chronicle.queue.impl.WireConstants
headerWaitDelay(int) - Method in class net.openhft.chronicle.queue.impl.single.SingleChronicleQueueBuilder
headerWaitDelay() - Method in class net.openhft.chronicle.queue.impl.single.SingleChronicleQueueBuilder
headerWaitLoops(int) - Method in class net.openhft.chronicle.queue.impl.single.SingleChronicleQueueBuilder
headerWaitLoops() - Method in class net.openhft.chronicle.queue.impl.single.SingleChronicleQueueBuilder

I

index(long) - Method in interface net.openhft.chronicle.queue.Excerpt: Randomly select an Excerpt.
index(int, long) - Method in interface net.openhft.chronicle.queue.Excerpt: Randomly select an Excerpt.
index() - Method in interface net.openhft.chronicle.queue.ExcerptAppender
index() - Method in interface net.openhft.chronicle.queue.ExcerptTailer
index(long) - Method in interface net.openhft.chronicle.queue.ExcerptTailer: Randomly select an Excerpt.
index(long, long) - Method in interface net.openhft.chronicle.queue.ExcerptTailer: Randomly select an Excerpt.
index(long, VanillaBytes) - Method in class net.openhft.chronicle.queue.impl.single.work.in.progress.IndexedSingleChronicleQueue
index() - Method in class net.openhft.chronicle.queue.impl.single.work.in.progress.Indexer: sans through every excerpts and records every 64th address in the index2indexs'
index() - Method in class net.openhft.chronicle.queue.impl.single.work.in.progress.SingleAppender
index() - Method in class net.openhft.chronicle.queue.impl.single.work.in.progress.SingleTailer
index(long) - Method in class net.openhft.chronicle.queue.impl.single.work.in.progress.SingleTailer: The indexes are stored in many excerpts, so the index2index tells chronicle where ( in other words the address of where ) the root first level index is stored.
index(long, long) - Method in class net.openhft.chronicle.queue.impl.single.work.in.progress.SingleTailer
IndexedSingleChronicleQueue - Class in net.openhft.chronicle.queue.impl.single.work.in.progress: SingleChronicle implements Chronicle over a single streaming file
IndexedSingleChronicleQueue(String, long, WireType) - Constructor for class net.openhft.chronicle.queue.impl.single.work.in.progress.IndexedSingleChronicleQueue
Indexer - Class in net.openhft.chronicle.queue.impl.single.work.in.progress: this class is not threadsafe - first CAS has to be implemented
Indexer(ChronicleQueue, WireType) - Constructor for class net.openhft.chronicle.queue.impl.single.work.in.progress.Indexer
Indexer.IndexOffset - Enum in net.openhft.chronicle.queue.impl.single.work.in.progress
indexToIndex() - Method in class net.openhft.chronicle.queue.impl.AbstractChronicleQueue
indexToIndex() - Method in class net.openhft.chronicle.queue.impl.single.work.in.progress.AbstractChronicle
indexToIndex() - Method in class net.openhft.chronicle.queue.impl.single.work.in.progress.IndexedSingleChronicleQueue
init(Compression, WireType) - Method in class net.openhft.chronicle.queue.impl.single.work.in.progress.Header
install(BytesStore, long, boolean, long, Function<Bytes, Wire>, Closeable) - Method in interface net.openhft.chronicle.queue.impl.WireStore

L

lastCycle() - Method in class net.openhft.chronicle.queue.impl.AbstractChronicleQueue
lastIndex() - Method in class net.openhft.chronicle.queue.impl.single.work.in.progress.IndexedSingleChronicleQueue
lastIndex() - Method in interface net.openhft.chronicle.queue.impl.WireStore
lastWrittenIndex() - Method in interface net.openhft.chronicle.queue.ChronicleQueue
lastWrittenIndex() - Method in class net.openhft.chronicle.queue.impl.AbstractChronicleQueue
lastWrittenIndex() - Method in class net.openhft.chronicle.queue.impl.single.work.in.progress.IndexedSingleChronicleQueue
length() - Method in interface net.openhft.chronicle.queue.RollCycle
length() - Method in enum net.openhft.chronicle.queue.RollCycles

M

main(String...) - Static method in class net.openhft.chronicle.queue.impl.single.work.in.progress.Header

N

name() - Method in interface net.openhft.chronicle.queue.ChronicleQueue
name() - Method in class net.openhft.chronicle.queue.impl.AbstractChronicleQueue
name() - Method in class net.openhft.chronicle.queue.impl.single.work.in.progress.IndexedSingleChronicleQueue
net.openhft.chronicle.queue - package net.openhft.chronicle.queue
net.openhft.chronicle.queue.impl - package net.openhft.chronicle.queue.impl
net.openhft.chronicle.queue.impl.ringbuffer - package net.openhft.chronicle.queue.impl.ringbuffer
net.openhft.chronicle.queue.impl.single - package net.openhft.chronicle.queue.impl.single
net.openhft.chronicle.queue.impl.single.work.in.progress - package net.openhft.chronicle.queue.impl.single.work.in.progress
newIndex() - Method in class net.openhft.chronicle.queue.impl.AbstractChronicleQueue
newIndex() - Method in class net.openhft.chronicle.queue.impl.single.work.in.progress.AbstractChronicle
newIndex() - Method in class net.openhft.chronicle.queue.impl.single.work.in.progress.IndexedSingleChronicleQueue: Creates a new Excerpt containing and index which will be 1L << 17L bytes long, This method is used for creating both the primary and secondary indexes.
newLongArrayValuesPool(WireType) - Static method in class net.openhft.chronicle.queue.impl.single.work.in.progress.Indexer
NO_DATA - Static variable in class net.openhft.chronicle.queue.impl.WireConstants
NO_INDEX - Static variable in class net.openhft.chronicle.queue.impl.WireConstants
NUMBER_OF_ENTRIES_IN_EACH_INDEX - Static variable in class net.openhft.chronicle.queue.impl.single.work.in.progress.Indexer

O

offer(Bytes) - Method in class net.openhft.chronicle.queue.impl.ringbuffer.BytesRingBuffer: Inserts the specified element at the tail of this queue if it is possible to do so immediately without exceeding the queue's capacity,

P

PADDED_SIZE - Static variable in class net.openhft.chronicle.queue.impl.single.work.in.progress.Header
parseCount(String) - Method in class net.openhft.chronicle.queue.RollDateCache
path() - Method in class net.openhft.chronicle.queue.impl.single.SingleChronicleQueueBuilder
poll(BytesRingBuffer.BytesProvider) - Method in class net.openhft.chronicle.queue.impl.ringbuffer.BytesRingBuffer: Retrieves and removes the head of this queue, or returns null if this queue is empty.
positionForIndex(long) - Method in interface net.openhft.chronicle.queue.impl.WireStore
provide(long) - Method in interface net.openhft.chronicle.queue.impl.ringbuffer.BytesRingBuffer.BytesProvider: sets up a buffer to back the ring buffer, the data wil be read into this buffer the size of the buffer must be as big as maxSize

Q

queue() - Method in interface net.openhft.chronicle.queue.ExcerptCommon
queue() - Method in class net.openhft.chronicle.queue.impl.single.work.in.progress.SingleAppender
queue() - Method in class net.openhft.chronicle.queue.impl.single.work.in.progress.SingleTailer

R

raw(File) - Static method in class net.openhft.chronicle.queue.impl.single.SingleChronicleQueueBuilder
raw(String) - Static method in class net.openhft.chronicle.queue.impl.single.SingleChronicleQueueBuilder
read(long, ReadMarshallable) - Method in interface net.openhft.chronicle.queue.impl.WireStore
readDocument(ReadMarshallable) - Method in interface net.openhft.chronicle.queue.ExcerptTailer
readDocument(long, ReadMarshallable) - Method in class net.openhft.chronicle.queue.impl.single.work.in.progress.IndexedSingleChronicleQueue
readDocument(AtomicLong, Bytes) - Method in class net.openhft.chronicle.queue.impl.single.work.in.progress.IndexedSingleChronicleQueue
readDocument(Consumer<WireIn>) - Method in class net.openhft.chronicle.queue.impl.single.work.in.progress.SingleTailer
readDocument(ReadMarshallable) - Method in class net.openhft.chronicle.queue.impl.single.work.in.progress.SingleTailer
readMarshallable(WireIn) - Method in class net.openhft.chronicle.queue.impl.single.work.in.progress.Header
readPosition() - Method in interface net.openhft.chronicle.queue.impl.WireStore
release(WireStore) - Method in class net.openhft.chronicle.queue.impl.AbstractChronicleQueue
release(WireStore) - Method in class net.openhft.chronicle.queue.impl.WireStorePool
rollCycle(RollCycle) - Method in class net.openhft.chronicle.queue.impl.single.SingleChronicleQueueBuilder
rollCycle() - Method in class net.openhft.chronicle.queue.impl.single.SingleChronicleQueueBuilder
RollCycle - Interface in net.openhft.chronicle.queue: Created by peter.lawrey on 19/09/2015.
RollCycles - Enum in net.openhft.chronicle.queue
RollDateCache - Class in net.openhft.chronicle.queue
RollDateCache(RollCycle) - Constructor for class net.openhft.chronicle.queue.RollDateCache
RollDateCache(int, String, ZoneId) - Constructor for class net.openhft.chronicle.queue.RollDateCache

S

SBP - Static variable in class net.openhft.chronicle.queue.impl.WireConstants
SingleAppender - Class in net.openhft.chronicle.queue.impl.single.work.in.progress: Created by peter.lawrey on 30/01/15.
SingleAppender(ChronicleQueue, Function<Bytes, Wire>) - Constructor for class net.openhft.chronicle.queue.impl.single.work.in.progress.SingleAppender
SingleChronicleQueueBuilder - Class in net.openhft.chronicle.queue.impl.single
SingleChronicleQueueBuilder(String) - Constructor for class net.openhft.chronicle.queue.impl.single.SingleChronicleQueueBuilder
SingleChronicleQueueBuilder(File) - Constructor for class net.openhft.chronicle.queue.impl.single.SingleChronicleQueueBuilder
SingleTailer - Class in net.openhft.chronicle.queue.impl.single.work.in.progress: Created by peter.lawrey on 30/01/15.
SingleTailer(AbstractChronicle, Function<Bytes, Wire>, WireType) - Constructor for class net.openhft.chronicle.queue.impl.single.work.in.progress.SingleTailer
size() - Method in interface net.openhft.chronicle.queue.ChronicleQueue
size() - Method in class net.openhft.chronicle.queue.impl.AbstractChronicleQueue
size() - Method in class net.openhft.chronicle.queue.impl.single.work.in.progress.IndexedSingleChronicleQueue
SPB_DATA_HEADER_SIZE - Static variable in class net.openhft.chronicle.queue.impl.WireConstants
storeForCycle(long) - Method in class net.openhft.chronicle.queue.impl.AbstractChronicleQueue

T

take(BytesRingBuffer.BytesProvider) - Method in class net.openhft.chronicle.queue.impl.ringbuffer.BytesRingBuffer
text(File) - Static method in class net.openhft.chronicle.queue.impl.single.SingleChronicleQueueBuilder
text(String) - Static method in class net.openhft.chronicle.queue.impl.single.SingleChronicleQueueBuilder
toAddress0(long) - Static method in enum net.openhft.chronicle.queue.impl.single.work.in.progress.Indexer.IndexOffset
toAddress1(long) - Static method in enum net.openhft.chronicle.queue.impl.single.work.in.progress.Indexer.IndexOffset
toBinaryString(long) - Static method in enum net.openhft.chronicle.queue.impl.single.work.in.progress.Indexer.IndexOffset
toEnd() - Method in interface net.openhft.chronicle.queue.Excerpt: Wind to the upper.
toEnd() - Method in interface net.openhft.chronicle.queue.ExcerptTailer: Wind to the upper.
toEnd() - Method in class net.openhft.chronicle.queue.impl.single.work.in.progress.SingleTailer
toScale() - Static method in enum net.openhft.chronicle.queue.impl.single.work.in.progress.Indexer.IndexOffset
toStart() - Method in interface net.openhft.chronicle.queue.Excerpt: Replay from the lower.
toStart() - Method in interface net.openhft.chronicle.queue.ExcerptTailer: Replay from the lower.
toStart() - Method in class net.openhft.chronicle.queue.impl.single.work.in.progress.SingleTailer

V

valueOf(String) - Static method in enum net.openhft.chronicle.queue.impl.single.work.in.progress.Compression: Returns the enum constant of this type with the specified name.
valueOf(String) - Static method in enum net.openhft.chronicle.queue.impl.single.work.in.progress.Indexer.IndexOffset: Returns the enum constant of this type with the specified name.
valueOf(String) - Static method in enum net.openhft.chronicle.queue.RollCycles: Returns the enum constant of this type with the specified name.
values() - Static method in enum net.openhft.chronicle.queue.impl.single.work.in.progress.Compression: Returns an array containing the constants of this enum type, in the order they are declared.
values() - Static method in enum net.openhft.chronicle.queue.impl.single.work.in.progress.Indexer.IndexOffset: Returns an array containing the constants of this enum type, in the order they are declared.
values() - Static method in enum net.openhft.chronicle.queue.RollCycles: Returns an array containing the constants of this enum type, in the order they are declared.

W

wire() - Method in class net.openhft.chronicle.queue.impl.AbstractChronicleQueue
wire() - Method in class net.openhft.chronicle.queue.impl.single.work.in.progress.AbstractChronicle
wire() - Method in class net.openhft.chronicle.queue.impl.single.work.in.progress.IndexedSingleChronicleQueue
WireBoundsConsumer - Interface in net.openhft.chronicle.queue.impl
WireConstants - Class in net.openhft.chronicle.queue.impl
WireConstants() - Constructor for class net.openhft.chronicle.queue.impl.WireConstants
WirePool - Class in net.openhft.chronicle.queue.impl
WirePool(BytesStore, Function<Bytes, Wire>) - Constructor for class net.openhft.chronicle.queue.impl.WirePool
WireStore - Interface in net.openhft.chronicle.queue.impl
WireStorePool - Class in net.openhft.chronicle.queue.impl
WireStorePool(WireStoreSupplier) - Constructor for class net.openhft.chronicle.queue.impl.WireStorePool
WireStoreSupplier - Interface in net.openhft.chronicle.queue.impl
wireType() - Method in class net.openhft.chronicle.queue.impl.AbstractChronicleQueue
wireType(WireType) - Method in class net.openhft.chronicle.queue.impl.single.SingleChronicleQueueBuilder
wireType() - Method in class net.openhft.chronicle.queue.impl.single.SingleChronicleQueueBuilder
wireType() - Method in class net.openhft.chronicle.queue.impl.single.work.in.progress.AbstractChronicle
wireType() - Method in class net.openhft.chronicle.queue.impl.single.work.in.progress.IndexedSingleChronicleQueue
withSupplier(WireStoreSupplier) - Static method in class net.openhft.chronicle.queue.impl.WireStorePool
writeByte() - Method in class net.openhft.chronicle.queue.impl.single.work.in.progress.Header
writeDocument(WriteMarshallable) - Method in interface net.openhft.chronicle.queue.ExcerptAppender
writeDocument(WriteMarshallable) - Method in class net.openhft.chronicle.queue.impl.single.work.in.progress.SingleAppender
writeMarshallable(WireOut) - Method in class net.openhft.chronicle.queue.impl.single.work.in.progress.Header
writePosition() - Method in interface net.openhft.chronicle.queue.impl.WireStore

Z

ZippedDocumentAppender - Class in net.openhft.chronicle.queue.impl.ringbuffer: Create a background thread to zip the bytes before appending the zipped bytes to the ChronicleQueue, in the meantime the bytes are held in a ring buffer.
ZippedDocumentAppender(BytesRingBuffer, ChronicleQueue) - Constructor for class net.openhft.chronicle.queue.impl.ringbuffer.ZippedDocumentAppender
zone() - Method in interface net.openhft.chronicle.queue.RollCycle
zone() - Method in enum net.openhft.chronicle.queue.RollCycles

A B C E F G H I L M N O P Q R S T V W Z