edu.ucsb.nceas.metacat.spatial

Class SpatialHarvester

java.lang.Object

edu.ucsb.nceas.metacat.spatial.SpatialHarvester

public class SpatialHarvester
extends java.lang.Object

Harvests spatial data from metacat database and saves to persistent cache

Constructor Summary

Constructors

Constructor and Description
SpatialHarvester() constructor to initialize db connection

Method Summary

Methods

Modifier and Type	Method and Description
void	addToDeleteQue(java.lang.String docid) Delete a given document from spatial cache.
void	addToUpdateQue(java.lang.String docid) Currently just a wrapper around the harvestDocument method.
void	deleteDocument(java.lang.String docid) Given a docid, will attempt to delete it from spatial cache
void	destroy() Closes the database connection.
void	harvestDocument(java.lang.String docid) Given a new or updated docid, will update the spatial cache accordingly.
protected java.util.Vector<java.lang.String>	queryAllDocids() Returns a Vector of all the current versions of public docids
void	regenerate() Completely regenerates the spatial cache.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SpatialHarvester

public SpatialHarvester()

constructor to initialize db connection

Method Detail

destroy

public void destroy()

Closes the database connection. Should be called after you're done with the SpatialHarvester

queryAllDocids

protected java.util.Vector<java.lang.String> queryAllDocids()

Returns a Vector of all the current versions of public docids

addToUpdateQue

public void addToUpdateQue(java.lang.String docid)

Currently just a wrapper around the harvestDocument method. Eventually we can use this method as a timed que like the indexing process.

Parameters:

docid - The docid to be added to the spatial cache.

addToDeleteQue

public void addToDeleteQue(java.lang.String docid)

Delete a given document from spatial cache. Just a wrapper around deleteDocument method for now.

Parameters:

docid - The docid to be deleted from the spatial cache.

deleteDocument

public void deleteDocument(java.lang.String docid)

Given a docid, will attempt to delete it from spatial cache

Parameters:

docid - The docid to be deleted from the spatial cache.

harvestDocument

public void harvestDocument(java.lang.String docid)

Given a new or updated docid, will update the spatial cache accordingly.

Parameters:

docid - The docid to be updated or inserted into the spatial cache.

regenerate

public void regenerate()
                throws java.io.IOException

Completely regenerates the spatial cache. This can take a long time, especially with lots of documents.

Throws:

java.io.IOException