GeoTools

DataSource Hint for EPSG Authority

Details

  • Type: Improvement Improvement
  • Status: Closed Closed
  • Priority: Major Major
  • Resolution: Fixed
  • Affects Version/s: 2.4-M1
  • Fix Version/s: 2.5-M1
  • Component/s: referencing
  • Labels:
    None

Description

Jira to track API change proposal:

Use of an EPSG Authority implementation in a Java EE container.

  • Need to supply a Hint that an EPSG Authority can use to look up a DataSource using JNDI
  • Create seperate EPSGAuthorityFactory for this use

Background research:

Activity

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Jody Garnett added a comment -
Proposal brought up in weekly IRC meeting:
- http://docs.codehaus.org/display/GEOTOOLS/2007/04/02/IRC+Meeting+-+2+April+2007

Main feedback (correct) was from Andrea pointing out that there is no way for anybody to actually use Hints right now. GeoServer controls the proceedings by setting a System.property file.

Looking into the codebase I can find a mention of System.getProperty in the WKT coordinate system authority.
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Jody Garnett added a comment - Proposal brought up in weekly IRC meeting: - http://docs.codehaus.org/display/GEOTOOLS/2007/04/02/IRC+Meeting+-+2+April+2007 Main feedback (correct) was from Andrea pointing out that there is no way for anybody to actually use Hints right now. GeoServer controls the proceedings by setting a System.property file. Looking into the codebase I can find a mention of System.getProperty in the WKT coordinate system authority.
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Jody Garnett added a comment -
Removed all use of FactoryFinder (GeoTools 2.0 interface) ... switch to FactoryRegistry, currently each implementation uses null for the Hints.

Plan to introduce "global" Hints, initially set by system properties.

Cannot figure out if this is best done as:
{code}
class Hints {
   /** Generate Hints based on system defaults */
   Hints getDefault()
       ....
   }
}
{code}

Or if we should start to make use of a container, of which Hints is a valid request.
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Jody Garnett added a comment - Removed all use of FactoryFinder (GeoTools 2.0 interface) ... switch to FactoryRegistry, currently each implementation uses null for the Hints. Plan to introduce "global" Hints, initially set by system properties. Cannot figure out if this is best done as: {code} class Hints {    /** Generate Hints based on system defaults */    Hints getDefault()        ....    } } {code} Or if we should start to make use of a container, of which Hints is a valid request.
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Martin Desruisseaux added a comment -
The following hint has been added:

http://javadoc.geotools.fr/snapshot/org/geotools/factory/Hints.html#EPSG_DATA_SOURCE

Is it suffisient for closing this issue?
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Martin Desruisseaux added a comment - The following hint has been added: http://javadoc.geotools.fr/snapshot/org/geotools/factory/Hints.html#EPSG_DATA_SOURCE Is it suffisient for closing this issue?
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Jody Garnett added a comment -
yes, although I have only tested it on trunk.
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Jody Garnett added a comment - yes, although I have only tested it on trunk.

People

  • Assignee:
    Jody Garnett
    Reporter:
    Jody Garnett
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Dates

  • Created:
    Updated:
    Resolved: