TopcatCodec1 (Starjava TOPCAT API)

java.lang.Object
- uk.ac.starlink.topcat.TopcatCodec1

All Implemented Interfaces:

TopcatCodec
```
public class TopcatCodec1
extends java.lang.Object
implements TopcatCodec
```
Original TopcatCodec implementation. This works but serializes all row subsets as bit masks and all columns as literal values. Thus a session round-tripped using this codec gives you back all the table and subset values that you had in the first place, but the expressions are lost, and additional file space is used to serialize these synthetic columns and subsets.
An additional issue is that there is a limit of 64 subsets.

Since:

16 Jul 2010

Author:

Mark Taylor

Constructor Summary

Constructors
Constructor Description

TopcatCodec1()

Constructors
Constructor	Description
`TopcatCodec1()`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`TopcatModel`	`decode(uk.ac.starlink.table.StarTable table, java.lang.String location, ControlWindow controlWindow)`	Takes a table which has been previously serialized by calling this codec's `encode` method, and for which the `isEncoded` method returns true, and turns it into a TopcatModel.
`uk.ac.starlink.table.StarTable`	`encode(TopcatModel tcModel)`	Turns a TopcatModel into a StarTable, ready for serialization.
`boolean`	`isCodecUtype(java.lang.String utype)`	Indicates whether a given utype is a marker for metadata private to the serialization scheme used by this class.
`boolean`	`isEncoded(uk.ac.starlink.table.StarTable table)`	Indicates whether a given table is a candidate for this codec's `decode` method.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - TopcatCodec1
```
public TopcatCodec1()
```
- Method Detail
  - encode
```
public uk.ac.starlink.table.StarTable encode(TopcatModel tcModel)
```
    Description copied from interface: TopcatCodec
    
    Turns a TopcatModel into a StarTable, ready for serialization.
    
    Specified by:
    
    encode in interface TopcatCodec
    
    Parameters:
    
    tcModel - model
    
    Returns:
    
    table
  - isEncoded
```
public boolean isEncoded(uk.ac.starlink.table.StarTable table)
```
    Description copied from interface: TopcatCodec
    
    Indicates whether a given table is a candidate for this codec's decode method. It should in general return true for a table that has been returned from this object's encode method (possibly following a table write/read cycle) and false for other tables.
    
    Specified by:
    
    isEncoded in interface TopcatCodec
    
    Parameters:
    
    table - data+metadata table
    
    Returns:
    
    true iff it looks like the table was written by this codec and can be decoded by it
  - decode
```
public TopcatModel decode(uk.ac.starlink.table.StarTable table,
                          java.lang.String location,
                          ControlWindow controlWindow)
```
    Description copied from interface: TopcatCodec
    
    Takes a table which has been previously serialized by calling this codec's encode method, and for which the isEncoded method returns true, and turns it into a TopcatModel. If decoding fails, null is returned.
    If used with a ControlWindow that users may be interacting with, this method should be called from the AWT event dispatch thread. This method may (for instance during testing) be called with a null value for the controlWindow parameter, but the resulting TopcatModel may not be suitable for all kinds of user interactions.
    
    Specified by:
    
    decode in interface TopcatCodec
    
    Parameters:
    
    table - encoded table
    
    location - table location string
    
    controlWindow - control window, or null if necessary
    
    Returns:
    
    topcat model, or null
  - isCodecUtype
```
public boolean isCodecUtype(java.lang.String utype)
```
    Indicates whether a given utype is a marker for metadata private to the serialization scheme used by this class.
    
    Parameters:
    
    utype - info utype
    
    Returns:
    
    true iff utype is for private codec purposes

Class TopcatCodec1

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

TopcatCodec1

Method Detail

encode

isEncoded

decode

isCodecUtype