| Interface | Description |
|---|---|
| TableHandler |
SAX-like handler which defines callbacks that can be made when a
VOTable data is encountered during a SAX stream.
|
| TabularData |
Contains the actual cell contents of a VOTable TABLE element.
|
| Class | Description |
|---|---|
| ColFitsPlusTableBuilder |
Implementation of the
TableBuilder interface which reads
tables stored in column-oriented FITS binary table format. |
| ColFitsPlusTableWriter | Deprecated
Use
UnifiedFitsTableWriter instead |
| DataFormat |
Class of objects representing the different serialization formats
into which VOTable cell data can be written.
|
| FieldElement |
Table column characteristics represented by a FIELD element in a VOTable.
|
| FieldRefElement |
Object representing a FIELDref element.
|
| FitsPlusTableBuilder |
Table builder which can read files in 'fits-plus' format (as written
by
FitsPlusTableWriter). |
| FitsPlusTableWriter | Deprecated
Use
UnifiedFitsTableWriter instead |
| GroupElement |
Object representing a GROUP element in a VOTable.
|
| LinkElement |
Object representing a LINK element in a VOTable.
|
| Namespacing |
Determines how namespaces are handled in VOTable documents.
|
| ParamElement |
Object representing a PARAM element in a VOTable.
|
| ParamRefElement |
Object representing a PARAMref element.
|
| TableContentHandler |
Content handler which translates SAX events into table events.
|
| TableElement |
An object representing the TABLE element of a VOTable.
|
| Timesys |
Utility class for working with VOTable TIMESYS elements.
|
| TimesysElement |
Element subclass for a TIMESYS element in a VOTable.
|
| UnifiedFitsTableWriter |
FITS output handler that supports multiple different options.
|
| UnifiedFitsTableWriter.Col |
Subclass with default configuration but colfits set true.
|
| ValuesElement |
Field or Param value restriction set represented by a VALUES element
in a VOTable.
|
| VODocument |
Document implementation which holds a VOTable-specific DOM.
|
| VOElement |
Element implementation for use within VOTable documents.
|
| VOElementFactory |
Provides methods for constructing VOElements from a variety
of sources.
|
| VOSerializer |
Class which knows how to serialize a table's fields and data to
VOTable elements.
|
| VOStarTable |
A
StarTable implementation based on a VOTable. |
| VOTableBuilder |
Implementation of the
TableBuilder interface which
gets StarTables from VOTable documents. |
| VOTableDOMBuilder |
Custom DOM builder for parsing VOTable documents or fragments.
|
| VOTableFitsTableWriter | Deprecated
Use
UnifiedFitsTableWriter instead |
| VOTableVersion |
Provides characteristics for a given version of the VOTable standard.
|
| VOTableWriter |
Implementation of the
StarTableWriter interface for
VOTables. |
| Enum | Description |
|---|---|
| ResourceType |
Values permitted for the type attribute on the VOTable RESOURCE element.
|
Elements in the VOTable DTD are represented by instances of
VOElement
or one of its subclasses. Not every VOTable
element has a corresponding class, but the generic facilities
of VOElement can still be used for navigation if required.
In general a subclass of VOElement is provided in those
cases for which functionality beyond that given by the
DelegatingElement.getAttribute(java.lang.String) and
VOElement.getChildren()
is required.
The usual way of using these classes to read a VOTable document
would be to use one of the static makeVOElement methods in
VOElementFactory to construct a
top-level VOElement from a file, URL, input stream, DOM or whatever
and then to interrogate this element for its children to find
the elements of interest (e.g. TABLE elements).
A hybrid SAX/DOM parsing scheme is used, so that if a parse is done by this library (when using one of the non-DOM constructors of VOElement or one of its subclasses) bulk data is not represented in the resulting DOM. In the case of TABLEDATA encoding, this means that the (potentially large) number of TR and TD nodes are parsed directly using SAX and never introduced into the DOM. In the case of FITS or BINARY encoding in which the data is base64-encoded inline in the STREAM element, this element is read and converted into table data during the parse, and the screed of base64 text is not included in the DOM. The user doesn't have to worry about all this of course, but it has the effect that the parsing is fast and as memory-efficient as possible. If the parsing has already been done (a DOMSource constructor is used to construct the VOElement instances) the library will use the text data in DOM nodes which exist in the presented DOM (it will not excise them from the given DOM).
Copyright © 2025 Central Laboratory of the Research Councils. All Rights Reserved.