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See:
Description
Interface Summary | |
---|---|
DataConsumer | The DataConsumer processes incoming data. |
DataField | Common super-interface for DataIntField and DataObjField . |
DataIntField | The DataIntField defines identity and access API for Int-fields. |
DataIterator | The DataIterator defines protocol of serial access to the data
using Iterator pattern. |
DataListener | The DataListener is used to receive notifications about data availability
in the corresponding data providers. |
DataObjField | The DataObjField defines identity and access API for Obj-fields. |
DataProvider | The DataProvider allows retrieval of accumulated data. |
DataRecord | The DataRecord defines identity and content of generic data record. |
DataScheme | The DataScheme defines overall scheme of data records and fields. |
DataVisitor | The DataVisitor defines protocol of serial access to the data
using Visitor pattern. |
HistorySubscriptionFilter | Filter for history subscription to avoid memory overload with history. |
QDAgent | The QDAgent represents an individual data consumer in the QDCollector . |
QDCollector | The QDCollector represents a hub which collects subscription from
data consumers and distributes it among data providers and at the same time it
collects data from data providers and distributes it among data consumers. |
QDDistributor | The QDDistributor represents an individual data provider in the QDCollector . |
QDErrorHandler | Error handler interface for exceptions in data and subscription listeners. |
QDHistory | The QDHistory represents a history-view of the data. |
QDStream | The QDStream represents a stream-view of the data. |
QDTicker | The QDTicker represents a ticker-view of the data. |
SerialFieldType.IntConverter | |
SerialFieldType.ObjConverter | |
StableSubscriptionFilter | Stable subscription filter has a fixed logic (it cannot depend on any external resources or state)
and it is reconstructible from string by SubscriptionFilterFactory . |
SubscriptionConsumer | The SubscriptionConsumer processes incoming subscription. |
SubscriptionContainer | The SubscriptionContainer represents data structure that keeps subscription
in map-like fashion. |
SubscriptionFilter | The SubscriptionFilter is used to block unwanted subscription. |
SubscriptionFilterFactory | Factory interface for SubscriptionFilter instances. |
SubscriptionIterator | The SubscriptionIterator provides serial access to subscription. |
SubscriptionListener | The SubscriptionListener is used to receive notifications about
subscription availability in the corresponding subscription providers. |
SubscriptionProvider | The SubscriptionProvider allows retrieval of accumulated subscription. |
SubscriptionVisitor | The SubscriptionVisitor provides serial access to subscription. |
SymbolCodec | The SymbolCodec defines coding and serialization of symbols. |
SymbolReceiver | The SymbolReceiver interface provides a way to retrieve encoded
cipher-symbol pair from certain methods. |
Class Summary | |
---|---|
DataBuffer | Deprecated. Use RecordBuffer instead. |
QDFactory | The QDFactory creates implementations for core QD components. |
QDLog | |
SerialFieldType | Describes serial type of data fields that are transferred via QTP. |
SubscriptionBuffer | The SubscriptionBuffer class is an universal buffer for subscription,
able to receive and retrieve subscription via all appropriate interfaces and via
random access. |
SymbolList |
Enum Summary | |
---|---|
QDContract | All available contracts for QDCollector . |
Annotation Types Summary | |
---|---|
SpecificSubscriptionFilter | Describes project-specific subscription filter. |
This package contains basic interfaces and other API elements of QD system which shall be sufficient for the client application programmer.
The general API of QD falls into several categories:
DataIntField
, DataObjField
,
DataRecord
, DataScheme
and SymbolCodec
(with SymbolReceiver
).
DataIterator
, DataVisitor
,
DataConsumer
, DataProvider
(with DataListener
) and DataBuffer
.
SubscriptionIterator
, SubscriptionVisitor
,
SubscriptionConsumer
, SubscriptionProvider
(with SubscriptionListener
) and SubscriptionBuffer
.
SubscriptionFilter
.
QDAgent
.
QDDistributor
.
QDCollector
,
QDTicker
, QDStream
, QDHistory
and QDFactory
.
Most APIs have default implementations for common cases; these are placed according to their classification. See individual packages for details.
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