Uses of Interface
com.devexperts.qd.DataVisitor

Packages that use DataVisitor

Package	Description
com.devexperts.qd	This package contains basic interfaces and other API elements of QD system which shall be sufficient for the client application programmer.
com.devexperts.qd.ng	This package contains next-generation interfaces for data and subscription exchange based on RecordCursor class.
com.devexperts.qd.qtp	This package contains interfaces with default implementations required to create and operate a connection using QTP.
com.devexperts.qd.util	This package contains utility classes which are used by QD, but which do not depend on QD and which do not constitute any separate module or subsystem.

Uses of DataVisitor in com.devexperts.qd

Classes in com.devexperts.qd that implement DataVisitor

Modifier and Type	Class and Description
class	DataBuffer Deprecated. Use RecordBuffer instead.

Fields in com.devexperts.qd declared as DataVisitor

Modifier and Type	Field and Description
static DataVisitor	DataVisitor.VOID

Methods in com.devexperts.qd with parameters of type DataVisitor

Modifier and Type	Method and Description
boolean	QDHistory.examineData(DataRecord record, int cipher, String symbol, long startTime, long endTime, DataVisitor visitor) Deprecated. Use QDHistory.examineData(DataRecord, int, String, long, long, RecordSink)
boolean	QDCollector.examineData(DataVisitor visitor) Deprecated. Use QDCollector.examineData(RecordSink).
boolean	DataBuffer.examineData(DataVisitor visitor) Deprecated. Examines accumulated data via specified data visitor.
void	DataBuffer.examineRecord(int index, DataVisitor visitor) Deprecated. Examines record by its index within this buffer via specivied visitor.
static boolean	DataBuffer.process(DataIterator iterator, DataVisitor visitor) Deprecated. Use RecordBuffer.retrieveData(DataVisitor) or LegacyIteratorUtils.processData(DataIterator, DataVisitor) as last resort.
boolean	DataProvider.retrieveData(DataVisitor visitor) Retrieves accumulated data into specified data visitor.
boolean	DataBuffer.retrieveData(DataVisitor visitor) Deprecated.

Uses of DataVisitor in com.devexperts.qd.ng

Subinterfaces of DataVisitor in com.devexperts.qd.ng

Modifier and Type	Interface and Description
interface	RecordSink An object to which data records can be appended.

Classes in com.devexperts.qd.ng that implement DataVisitor

Modifier and Type	Class and Description
class	AbstractRecordSink Bridge class that adapts DataVisitor and SubscriptionVisitor APIs to RecordSink API.
class	DataSink Deprecated. Use AbstractRecordSink
class	RecordBuffer Buffers int and obj values of data records.

Methods in com.devexperts.qd.ng that return DataVisitor

Modifier and Type	Method and Description
DataVisitor	RecordBuffer.visitor() Deprecated. Use this implementation of DataVisitor interface directly if absolutely needed and reconsider this use completely, because DataVisitor is a legacy interface.

Methods in com.devexperts.qd.ng with parameters of type DataVisitor

Modifier and Type	Method and Description
boolean	RecordCursor.examineData(DataVisitor visitor) Examines this cursor into the specified data visitor, passing record, symbol and all field values.
boolean	RecordProvider.retrieveData(DataVisitor visitor) Deprecated. Use RecordProvider.retrieve(RecordSink)
boolean	RecordBuffer.retrieveData(DataVisitor visitor) Deprecated. Use RecordBuffer.retrieve(RecordSink)
boolean	AbstractRecordProvider.retrieveData(DataVisitor visitor) Deprecated. Use AbstractRecordProvider.retrieve(RecordSink)

Uses of DataVisitor in com.devexperts.qd.qtp

Classes in com.devexperts.qd.qtp that implement DataVisitor

Modifier and Type	Class and Description
class	AbstractQTPComposer Base class for classes that compose QTP messages data into a byte stream in some format.
class	BinaryQTPComposer Composes QTP messages in binary format into byte stream.
class	ByteArrayComposer Deprecated. Use BinaryQTPComposer.
class	OutputStreamComposer This composer stores filtered data and subscription to a specified OutputStream in binary QTP format.

Uses of DataVisitor in com.devexperts.qd.util

Methods in com.devexperts.qd.util with parameters of type DataVisitor

Modifier and Type	Method and Description
static RecordSink	LegacyAdapter.of(DataVisitor visitor)
static boolean	LegacyIteratorUtils.processData(DataIterator iterator, DataVisitor visitor) Processes data from specified iterator via specified visitor.