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java.lang.Objectuk.ac.starlink.ttools.cone.JdbcConer
public class JdbcConer
Coner implementation which works by performing SELECT statements over a JDBC database connection.
Constructor Summary | |
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JdbcConer()
Constructor. |
Method Summary | |
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ConeSearcher |
createSearcher(uk.ac.starlink.task.Environment env,
boolean bestOnly)
Returns a searcher object which can perform the actual cone searches as configured by this object's parameters. |
uk.ac.starlink.task.Parameter[] |
getParameters()
Returns any configuration parameters associated with this object. |
String |
getSkySystem()
Returns the empty string. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public JdbcConer()
Method Detail |
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public String getSkySystem()
getSkySystem
in interface Coner
public uk.ac.starlink.task.Parameter[] getParameters()
Coner
getParameters
in interface Coner
public ConeSearcher createSearcher(uk.ac.starlink.task.Environment env, boolean bestOnly) throws uk.ac.starlink.task.TaskException
Coner
bestOnly
flag is set, then only the best match
is required. The implementation may use this as a hint if it helps
efficiency, but is not obliged to return single-row tables, since
extraneous rows will be filtered out later. Similarly any rows
which do not actually match the given criteria will be filtered out
later, so it is not an error to return too many rows.
createSearcher
in interface Coner
env
- execution environmentbestOnly
- true iff only the best match will be used
uk.ac.starlink.task.TaskException
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