%IO.IParts.SeekableIO

abstract class %IO.IParts.SeekableIO

Aggregation holder class for methods implemented in Seekable stream classes The methods of this class work for both Byte and Character streams

Property Inventory

• Position
• Size

Method Inventory

• Clear()
• Find()
• Rewind()
• Seek()
• SizeGet()
• TruncateAt()

Properties

property Position as %Integer [ InitialExpression = 0 , ReadOnly ];

Property methods: PositionDisplayToLogical(), PositionGet(), PositionIsValid(), PositionLogicalToDisplay(), PositionNormalize()

property Size as %Integer [ Calculated , ReadOnly ];

Property methods: SizeDisplayToLogical(), SizeIsValid(), SizeLogicalToDisplay(), SizeNormalize()

Methods

method Clear(Output pSC As %Status) as %Boolean

method Find(pMatch As %String, pPosition As %Integer = 1, pEndPosition As %Integer = -1, Output pSC As %Status, pReadLines As %Boolean = 0) as %Integer

method Rewind(Output pSC As %Status)

abstract method Seek(pPosition As %Integer = 1, Output pSC As %Status) as %Boolean

method SizeGet() as %Integer

method TruncateAt(pPosition As %Integer, Output pSC As %Status) as %Boolean

Subclasses

• %IO.I.ByteSeekableStream
• %IO.IParts.CharacterSeekableIO