Package uk.ac.starlink.ttools.task
Class MultiOutputTask
java.lang.Object
uk.ac.starlink.ttools.task.MultiOutputTask
- All Implemented Interfaces:
uk.ac.starlink.task.Task
- Direct Known Subclasses:
TableMultiCopy
Task which writes multiple tables to a single output file.
Concrete subclasses must implement the
createTableSequence(uk.ac.starlink.task.Environment)
method.- Since:
- 6 Jul 2010
- Author:
- Mark Taylor
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionuk.ac.starlink.task.Executable
createExecutable
(uk.ac.starlink.task.Environment env) protected abstract uk.ac.starlink.table.TableSequence
createTableSequence
(uk.ac.starlink.task.Environment env) Interrogates the environment to produce a sequence of tables which will be written as the output of this task.static uk.ac.starlink.table.TableSequence
createTableSequence
(InputTableSpec[] inSpecs) Constructs a table sequence based on an array of input table specifications.protected List
<uk.ac.starlink.task.Parameter<?>> Returns the parameter list for this task; it may be modified.uk.ac.starlink.task.Parameter<?>[]
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Constructor Details
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MultiOutputTask
Constructor.- Parameters:
purpose
- task purpose
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Method Details
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getPurpose
- Specified by:
getPurpose
in interfaceuk.ac.starlink.task.Task
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getParameters
public uk.ac.starlink.task.Parameter<?>[] getParameters()- Specified by:
getParameters
in interfaceuk.ac.starlink.task.Task
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getParameterList
Returns the parameter list for this task; it may be modified.- Returns:
- parameter list
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createTableSequence
protected abstract uk.ac.starlink.table.TableSequence createTableSequence(uk.ac.starlink.task.Environment env) throws uk.ac.starlink.task.TaskException Interrogates the environment to produce a sequence of tables which will be written as the output of this task.- Parameters:
env
- execution environment- Returns:
- sequence of tables to write
- Throws:
uk.ac.starlink.task.TaskException
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createExecutable
public uk.ac.starlink.task.Executable createExecutable(uk.ac.starlink.task.Environment env) throws uk.ac.starlink.task.TaskException - Specified by:
createExecutable
in interfaceuk.ac.starlink.task.Task
- Throws:
uk.ac.starlink.task.TaskException
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createTableSequence
public static uk.ac.starlink.table.TableSequence createTableSequence(InputTableSpec[] inSpecs) throws uk.ac.starlink.task.TaskException Constructs a table sequence based on an array of input table specifications.- Parameters:
inSpecs
- array of input tables- Throws:
uk.ac.starlink.task.TaskException
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