edu.ucsb.nceas.metacat

Class DBSimpleQuery

java.lang.Object

edu.ucsb.nceas.metacat.DBSimpleQuery

public class DBSimpleQuery
extends java.lang.Object

A Class that searches a relational DB for elements and attributes that have free text matches to the query string. It returns a result set consisting of the root nodeid for each document that satisfies the query

Constructor Summary

Constructors

Constructor and Description
DBSimpleQuery() construct an instance of the DBSimpleQuery class

Method Summary

Modifier and Type	Method and Description
java.util.Hashtable	findDocuments(java.lang.String query) routine to search the elements and attributes looking to match query
java.util.Hashtable	findDocuments(java.lang.String query, java.lang.String requestedDoctype) routine to search the elements and attributes looking to match query
static void	main(java.lang.String[] args) the main routine used to test the DBSimpleQuery utility.

Methods inherited from class java.lang.Object

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

Constructor Detail

DBSimpleQuery

public DBSimpleQuery()
              throws java.io.IOException,
                     java.sql.SQLException,
                     java.lang.ClassNotFoundException

construct an instance of the DBSimpleQuery class

Generally, one would call the findDocuments() routine after creating an instance to specify the search query

Parameters:

conn - the JDBC connection that we use for the query

Throws:

java.io.IOException

java.sql.SQLException

java.lang.ClassNotFoundException

Method Detail

main

public static void main(java.lang.String[] args)

the main routine used to test the DBSimpleQuery utility.

Usage: java DBSimpleQuery

Parameters:

query - the text to search for in the element and attribute content

findDocuments

public java.util.Hashtable findDocuments(java.lang.String query)

routine to search the elements and attributes looking to match query

Parameters:

query - the text to search for

findDocuments

public java.util.Hashtable findDocuments(java.lang.String query,
                                         java.lang.String requestedDoctype)

routine to search the elements and attributes looking to match query

Parameters:

query - the text to search for

requestedDoctype - the type of documents to return from the query