DataRecord (QD Core API 3.342)

All Known Implementing Classes:

DefaultRecord
```
public interface DataRecord
```
The DataRecord defines identity and content of generic data record.
The DataRecord contains a set of data fields in a form of a two indexed lists of Int-fields and Obj-fields respectively. For determination, whenever serial access to the data fields of a record is performed (iteration, visiting, serialization), all Int-fields go first in their list order, then all Obj-fields go in their list order.

Method Summary

All Methods Instance Methods Abstract Methods Deprecated Methods
Modifier and Type	Method and Description
`DataField`	`findFieldByName(String name)` Finds field by its full `name`, or by its `local name`, or by its `property name`, or by its default property name that is created from its local name using `AbstractDataField.getDefaultPropertyName` method.
`int`	`getId()` Returns identifier of this record.
`DataIntField`	`getIntField(int index)` Returns Int-field by its index within this record.
`int`	`getIntFieldCount()` Returns a number of Int-fields in this record.
`RecordMapping`	`getMapping()` Returns mapping for this data record or `null` if there is no such mapping for this record.
`<T extends RecordMapping> T`	`getMapping(Class<T> mappingClass)` Returns specified mapping for this data record or `null` if there is no such mapping for this record.
`Map<Class<? extends RecordMapping>,RecordMapping>`	`getMappings()` Returns all mappings for this data record.
`String`	`getName()` Returns name of this record.
`DataObjField`	`getObjField(int index)` Returns Obj-field by its index within this record.
`int`	`getObjFieldCount()` Returns a number of Obj-fields in this record.
`DataScheme`	`getScheme()` Returns parent `DataScheme` of this field.
`boolean`	`hasTime()` Determines if this record contains time coordinate.
`void`	`readFields(com.devexperts.io.BufferedInput in, RecordCursor cursor)` Deprecated. Use `BinaryQTPParser` class
`boolean`	`update(RecordCursor from, RecordCursor to)` Updates this record's field values in `to` cursor by values `from` cursor.
`void`	`writeFields(com.devexperts.io.BufferedOutput out, RecordCursor cursor)` Deprecated. Use `BinaryQTPComposer` class

- Method Detail
  - getScheme
```
DataScheme getScheme()
```
    Returns parent DataScheme of this field.
  - getMapping
```
RecordMapping getMapping()
```
    Returns mapping for this data record or null if there is no such mapping for this record. If data record has multiple mappings then the first processed mapping will be returned. The result of invoking getRecord() method on the resulting record mapping (when it is non null) is equal to this data record.
  - getMapping
```
<T extends RecordMapping> T getMapping(Class<T> mappingClass)
```
    Returns specified mapping for this data record or null if there is no such mapping for this record. The result of invoking getRecord() method on the resulting record mapping (when it is non null) is equal to this data record.
  - getMappings
```
Map<Class<? extends RecordMapping>,RecordMapping> getMappings()
```
    Returns all mappings for this data record. The result of invoking getRecord() method on any of the resulting record mappings is equal to this data record.
  - getId
```
int getId()
```
    Returns identifier of this record. The identifier coincides with record index in its parent DataScheme. It is also used for identification of data record in serialized form.
  - getName
```
String getName()
```
    Returns name of this record. The name must be unique within whole DataScheme. The naming convention for record names is to use CapitalizedNames without separators and to prefer one-word names, like "Quote", "Trade", "TimeAndSales", etc.
  - hasTime
```
boolean hasTime()
```
    Determines if this record contains time coordinate.
  - getIntFieldCount
```
int getIntFieldCount()
```
    Returns a number of Int-fields in this record.
  - getIntField
```
DataIntField getIntField(int index)
```
    Returns Int-field by its index within this record.
    
    Throws:
    
    IndexOutOfBoundsException - if the index is out of range (index < 0 || index >= getIntFieldCount()).
  - getObjFieldCount
```
int getObjFieldCount()
```
    Returns a number of Obj-fields in this record.
  - getObjField
```
DataObjField getObjField(int index)
```
    Returns Obj-field by its index within this record.
    
    Throws:
    
    IndexOutOfBoundsException - if the index if out of range (index < 0 || index >= getObjFieldCount()).
  - findFieldByName
```
DataField findFieldByName(String name)
```
    Finds field by its full name, or by its local name, or by its property name, or by its default property name that is created from its local name using AbstractDataField.getDefaultPropertyName method.
    
    Returns:
    
    data field with the corresponding full name, local or property name or null if not found.
  - update
```
boolean update(RecordCursor from,
               RecordCursor to)
```
    Updates this record's field values in to cursor by values from cursor. This method is used for implementation of ticker contract.
    
    Returns:
    
    true if any values were updated and listeners shall be notified on data change.
  - writeFields
```
void writeFields(com.devexperts.io.BufferedOutput out,
                 RecordCursor cursor)
          throws IOException
```
    Deprecated. Use BinaryQTPComposer class
    
    Writes this record's field values in a binary form into a specified buffered output. The bytes written should be the same as if each field is individually written using DataIntField.writeInt(BufferedOutput, int) and DataObjField.writeObj(BufferedOutput, Object).
    
    Throws:
    
    IOException
  - readFields
```
void readFields(com.devexperts.io.BufferedInput in,
                RecordCursor cursor)
         throws IOException
```
    Deprecated. Use BinaryQTPParser class
    
    Reads this record's field values in a binary from the specified buffered input. The data read should be the same as if each field is individually read using DataIntField.readInt(BufferedInput) and DataObjField.readObj(BufferedInput).
    
    Throws:
    
    IOException

Interface DataRecord

Method Summary

Method Detail

getScheme

getMapping

getMapping

getMappings

getId

getName

hasTime

getIntFieldCount

getIntField

getObjFieldCount

getObjField

findFieldByName

update

writeFields

readFields