edu.ucsb.nceas.metacat

Class QueryResultTableBuilder

java.lang.Object

java.util.TimerTask

edu.ucsb.nceas.metacat.QueryResultTableBuilder

All Implemented Interfaces:

java.lang.Runnable

public class QueryResultTableBuilder
extends java.util.TimerTask

QueryResutlTableBuilder is class to build xml_queryresult table during metacat initialization. xml_querytable is a db table to store query returnfiled value. It is a cache of resultset and peformance optimization approach to replace xml_index and xml_node tables. In metacat 1.8.0, xml_queryresult table is built during the first time of query hitting metacat. So first time search will take longer time since this search involves xml_index and xml_node tables. In order to decrease the first query search time, this class will build the xml_querytable during the metacat intialization base on some metacat common clients' query , e.g. kepler, morpho, esa, knb, nceas, sanparks' regestiry.

Method Summary

Modifier and Type	Method and Description
void	run() Builds the result table base on the given docid list and returnfields

Methods inherited from class java.util.TimerTask

cancel, scheduledExecutionTime

Methods inherited from class java.lang.Object

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

Method Detail

run

public void run()

Builds the result table base on the given docid list and returnfields

Specified by:

run in interface java.lang.Runnable

Specified by:

run in class java.util.TimerTask