Package com.streambase.sb

Class TupleRep.TupleLayout

java.lang.Object

com.streambase.sb.TupleRep.TupleLayout

All Implemented Interfaces:

Schema.TupleClassInfo, Serializable

Enclosing class:

com.streambase.sb.TupleRep

public static class TupleRep.TupleLayout
extends Object
implements Schema.TupleClassInfo, Serializable

A class that holds information about how the fields in a particular schema are laid out in memory by TupleRep.

TODO: Consider reducing complexity by having the varData structure be the length of the fields in the tuple.

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
TupleLayout(Schema schema)	Constructor

Method Summary

Modifier and Type	Method	Description
Schema.Field	getField(int i)	Get field at index
int	getFixedDataBufferLength()	Get length of fixed data buffer
int	getFixedDataOffset(Schema.Field field)	Get fixed data field offset
int	getNumVarDataFields()	Get number of variable data fields
int	getVarDataIndex(Schema.Field field)	Get variable field index
DataType	getVarDataType(int i)	Get variable data type at index

Methods inherited from class java.lang.Object

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

Constructor Details

TupleLayout

TupleLayout(Schema schema)

Constructor

Parameters:

schema - tuple schema

Method Details

getNumVarDataFields

public int getNumVarDataFields()

Get number of variable data fields

Returns:

number of fields

getFixedDataBufferLength

public int getFixedDataBufferLength()

Get length of fixed data buffer

Returns:

length

getVarDataIndex

public int getVarDataIndex(Schema.Field field)

Get variable field index

Parameters:

field - field

Returns:

index

getFixedDataOffset

public int getFixedDataOffset(Schema.Field field)

Get fixed data field offset

Parameters:

field - field

Returns:

offset

getVarDataType

public DataType getVarDataType(int i)

Get variable data type at index

Parameters:

i - index

Returns:

data type

getField

public Schema.Field getField(int i)

Get field at index

Parameters:

i - field index

Returns:

field at index