Package uk.ac.starlink.vo
Class TapMetaPolicy
- java.lang.Object
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- uk.ac.starlink.vo.TapMetaPolicy
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public abstract class TapMetaPolicy extends java.lang.Object
Defines the policy for acquiring TAP metadata from a remote service. This is a factory for TapMetaReader objects.- Since:
- 25 Mar 2015
- Author:
- Mark Taylor
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Field Summary
Fields Modifier and Type Field Description static TapMetaPolicy
AUTO
Tries its best to do something sensible.static TapMetaPolicy
TAPSCHEMA
Uses the TAP_SCHEMA tables, all data loaded at once.static TapMetaPolicy
TAPSCHEMA_C
Uses the TAP_SCHEMA tables, with columns on demand.static TapMetaPolicy
TAPSCHEMA_CF
Uses the TAP_SCHEMA tables, with columns and foreign keys on demand.static TapMetaPolicy
VIZIER
Uses the non-standard VizieR two-level tables endpoint.static TapMetaPolicy
VOSI10
Uses the VOSI 1.0 /tables endpoint.static TapMetaPolicy
VOSI11_MAX
Uses the VOSI 1.1 one-stage (detail=max) /tables endpoint.static TapMetaPolicy
VOSI11_MIN
Uses the VOSI 1.1 two-stage (detail=min) /tables endpoint.static TapMetaPolicy
VOSI11_NULL
Uses the VOSI 1.1 /tables endpoint (backward compatible).
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Constructor Summary
Constructors Modifier Constructor Description protected
TapMetaPolicy(java.lang.String name, java.lang.String description)
Constructor.
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Method Summary
All Methods Static Methods Instance Methods Abstract Methods Concrete Methods Modifier and Type Method Description abstract TapMetaReader
createMetaReader(EndpointSet endpointSet, uk.ac.starlink.util.ContentCoding coding)
Creates an object capable of acquiring TAP metadata for a TAP service with a given set of service endpoints.static TapMetaPolicy
getDefaultInstance()
Returns an instance of this class suitable for general use.java.lang.String
getDescription()
Returns a plain text description of this object.java.lang.String
getName()
Returns the name of this object.static TapMetaPolicy[]
getStandardInstances()
Returns a list of some general-purpose concrete implementations of this class.
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Field Detail
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AUTO
public static final TapMetaPolicy AUTO
Tries its best to do something sensible.
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VOSI10
public static final TapMetaPolicy VOSI10
Uses the VOSI 1.0 /tables endpoint.
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TAPSCHEMA_C
public static final TapMetaPolicy TAPSCHEMA_C
Uses the TAP_SCHEMA tables, with columns on demand.
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TAPSCHEMA_CF
public static final TapMetaPolicy TAPSCHEMA_CF
Uses the TAP_SCHEMA tables, with columns and foreign keys on demand.
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TAPSCHEMA
public static final TapMetaPolicy TAPSCHEMA
Uses the TAP_SCHEMA tables, all data loaded at once.
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VIZIER
public static final TapMetaPolicy VIZIER
Uses the non-standard VizieR two-level tables endpoint.
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VOSI11_MAX
public static final TapMetaPolicy VOSI11_MAX
Uses the VOSI 1.1 one-stage (detail=max) /tables endpoint.
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VOSI11_MIN
public static final TapMetaPolicy VOSI11_MIN
Uses the VOSI 1.1 two-stage (detail=min) /tables endpoint.
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VOSI11_NULL
public static final TapMetaPolicy VOSI11_NULL
Uses the VOSI 1.1 /tables endpoint (backward compatible).
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Method Detail
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getName
public java.lang.String getName()
Returns the name of this object.- Returns:
- short name
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getDescription
public java.lang.String getDescription()
Returns a plain text description of this object.- Returns:
- description
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createMetaReader
public abstract TapMetaReader createMetaReader(EndpointSet endpointSet, uk.ac.starlink.util.ContentCoding coding)
Creates an object capable of acquiring TAP metadata for a TAP service with a given set of service endpoints.- Parameters:
endpointSet
- locations of TAP servicescoding
- configures HTTP compression; implementations may honour this hint but are not required to- Returns:
- new metadata reader
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getStandardInstances
public static TapMetaPolicy[] getStandardInstances()
Returns a list of some general-purpose concrete implementations of this class.- Returns:
- list of instances
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getDefaultInstance
public static TapMetaPolicy getDefaultInstance()
Returns an instance of this class suitable for general use.- Returns:
- default instance
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