uk.ac.starlink.ttools.plot2.data

Interface CachedColumn

public interface CachedColumn

Defines storage for a vector of data.

The usage sequence for an instance of this class is:

• Call add(java.lang.Object) zero or more times
• Call endAdd()
• Call createReader() zero or more times

Since:

4 Feb 2013

Author:

Mark Taylor

Method Summary

Modifier and Type	Method and Description
void	add(Object value) Adds an entry to this vector data container.
CachedReader	createReader() Returns an object which is capable of accessing the values that were added to this object.
void	endAdd() Indicates that no more calls to add(java.lang.Object) will be made
long	getRowCount() Returns the number of values added so far.

Method Detail

add

void add(Object value)
  throws IOException

Adds an entry to this vector data container. In general the supplied value must be of an appropriate type for this object. It must not be null.

Parameters:

value - non-null value to store

Throws:

IOException

endAdd

void endAdd()
     throws IOException

Indicates that no more calls to add(java.lang.Object) will be made

Throws:

IOException

getRowCount

long getRowCount()

Returns the number of values added so far.

Returns:

value count

createReader

CachedReader createReader()

Returns an object which is capable of accessing the values that were added to this object.

Returns:

cached data sequence