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/*
 * DbAccessObject.java
 *
 * Created on July 11, 2005, 10:38 AM
 */

package com.sun.enterprise.admin.monitor.callflow;

import java.sql.Connection;
import java.util.List;
import java.util.Map;

/**
 *
 * Database Access Object to handle table creates, table deletes and table 
 * updates
 * @author Harpreet Singh
 */
public interface DbAccessObject {
    
   /**
     * Enables the DB Access Object. It acquires connection to the database
     * It creates the required tables in the database. If the tables are present
     * it will not drop them.
     */
    public boolean enable ();

    public boolean disable();

    public boolean clearData();
    
    public boolean insert(TransferObject[] transferObject);
        
    public List<Map<String, String>> getRequestInformation();
    
    public List<Map<String, String>> getCallStackInformation (String requestId);
    
    public Map<String, String> getPieInformation (String requestId);
    
    public boolean deleteRequestIds (String[] requestIds);

    /**
     * Returns the total number of requests processed broken by the table name
     */
    public Map getNumOfRequestsProcessed ();
    /**
     * Returns no of requests processed as a string
     */
    public String getNumOfRequestsProcessedAsString ();        

}