Creating Table Model For Data From Database
Sep 9, 2014
I'd like to create my own Table Model to handle data from an SQLite database using JSwing, but I'm having difficulty. How to confirm the following:
-- A table model is an object that contains methods for manipulating data in the table, right?
If that's the case, then how should I create a Table Model to handle data coming from a database. From what I understand...
My custom Table Model needs to subclass AbstractTableModelI then override 3 methods from AbstractTableModel (getRowCount(), getColumnCount(), getValueAt())
As it relates to drawing data from a database, how should I be thinking about this problem (i.e. creating a Table Model that can work with a database)?
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Mar 7, 2015
I am trying to output data but get empty table. What am I doing wrong? Here is my code:
Class Item:
package com.store.util;
public class Item {
private Long id;
private String name;
private String description;
private String category;
private Double price;
[Code]...
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Nov 17, 2014
I have a HTML table whose rows are getting generated through javascript function. I want to save this data in the table rows.
**HTML Code**
<div style="width:100%;height:100%;border:1px solid black; overflow-x:scroll; overflow-y:scroll; padding:0">
<table border=0>
<tr>
<td>
<input type="button" name="add_details" id="add_details" value="Add" onclick="AddDetails()">
<input type="button" name="delete_details" id="delete_details" value="Delete" onclick="DeleteDetails()">
[Code] .....
When i press submit button in my form of JSP, how can i access table data?
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Jan 22, 2014
Problem code:
JSP 1:
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%@page import="java.sql.*;" %>
<%!Connection con;%>
<%!Statement stmt = null;%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "[URL]...">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
[Code]...
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Apr 1, 2015
I want to retrieve the data from this table given below and insert that data in the database in the next servlet
package com.sk;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
[Code] .....
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Dec 24, 2014
I want to create few forms in our project. I searched in web, All are PHP form Generator only not for any JSP. I could see one JSP form Generator Site. But the Content will store it in their Server. How to create Feedback form in JSP which will store the Data in Database directly.
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Nov 14, 2014
public PurchaseTableModel() {
try{
//establish connection
conn = DriverManager.getConnection("jdbc:odbc:SupplierDS");
stmt = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,
ResultSet.CONCUR_READ_ONLY);
[code]....
I get the value from database and display in table , price value will show 6 decimal and date value will show date and time.What to do to show only 2 decimal places and only date e.g. 1/1/2014 in the table ?
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Dec 18, 2014
I have 2 different bespoke table models.
When one is needed I simply add it to the table. In this case however whilst updating the model via table update in tableChanged method I have the impression of 2 identical models because the update happens twice (use of audio).
Is it not true that adding a new model cancels out the other ? I test for which model is attached to table and add the correct one depending on the data required.
assert (!(this.getTableModel() instanceof KeywordBeanTableModel));
this.initKeywordBeanTableModel();
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Jan 16, 2014
I have a AbstractTable and would like to import a txt file into it. I know how to do it for a Default Table but I am not allowed to use it.
// Import Filechooser
public static ActionListener importChooseFileButtonListener = new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
JFileChooser jfc = new JFileChooser();
int returnVal = jfc.showOpenDialog(jfc);
ImportPopup imp = new ImportPopup();
[Code] ....
What do I have to do to import the file into the table?
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Dec 11, 2014
I have a requirement where we have an ETL jobs that runs in the backend which will get the up to date data from various sources , here we have both structured and unstructured data and the data capacity is massive which is in petabytes. Based on the data that is fetched we need to come up with a consolidated data view for the data which we retrieved. My queries are:-
1) How to create a consolidate data view , in what form it will be in (XML, JSON, etc)? whether we need to come up with a unified data model as the data is both structured and unstructured format? If so how we can go about it?
2) Since the data is really massive, how we can construct the consolidate data view? whether we need to create it in small chunks or whether we need to store these data in a cache or DB from where we will retrieve it and form the consolidated data view?
3) To process these data whether we need to have any Hadoop clusters to process these data parallel? As we are talking about massive data in the form of structured and un structured format?
4) Whether there is a need for NoSQL database to support unstructured data? If we are supposed to store the data?
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May 24, 2014
This is a design question is the same problem in any language.as you do to map the controller to the domain model?We have situations in general larger than ... consider the example objects .
situation.1 - We have a request that has all the parameters of the account ;{ " id" : " 1 " , "name " : "test " , "some " : " xxx " } ............. and other fields .
situation.2 - can request that has to have a certain account parameters , for example in the case of an update;{" id" , " 1" , "name " , " testUpdated "}
situation.3 - We have a request that has some parameters of the account , others have more like id as user together;{ " id" : " 1 " , "user " : " xxx " , "service " : " yyy " } in which case each piece of the request will turn an object .
Java Code:
public class Account {
private Long id;
private String name ;
private String some ;
} mh_sh_highlight_all('java');
I see a few options ;
1 - Can I get AccountForm in the controller and set the properties for the Account object and others in CONTROLLER ;
+ ok for situation.1 situations 2, and situation.3
+ Separates the requisition of the object domain
- Pollutes the controller with code conversion
- Controller is full of setters .. if a higher class as a large object as a request is very confusing .
Java Code:
controller ( AccountForm from ) {
Account account = new Account ( )
account.setNome form.getNome = ();
account.setSome form.getSome = ();
Other outher = new Other ( ) ;
other.setSome ( form.getSome ( ) ) ;
} mh_sh_highlight_all('java');
2 - Can I get AccountRequest in the controller and have a method in itself as AccountRequest.getAccount ( ) to return a mapped model , in this case the mapping is at own Request object .
+ Separates the requisition of the object domain
+ Encapsulates the conversion in a place with easy access .
+ Meets situation.1 situation.2 and situation3 ;
- Request object has two responsibilities represent the request and map to a valid model .
Java Code:
controller ( AccountForm accountRequest ) {
Account account = accountRequest.getAccount ( ) ;
Outher outher accountRequest.getOther = ( )
} mh_sh_highlight_all('java');
3 - Can I get the controller Direct Account which had been filled with nulls .
+ Eliminate object request
- Serves only situation.1 situation.2 .
Java Code:
controller (Account account ) {
account.someMethod ();
} mh_sh_highlight_all('java');
4 - Outsource this mapping request parameters to another object mapper for request ..
+ Isolates logic mapping
- Until complexity for simpler cases are used as standard for all such a find by id .
- One more class for each request ;
In the case of API gets worse response has two further classes. speaking in terms of request for response .... AccountRequest, AccountRequestMapper, Account, AccountResponseMapper, AccountResponse .....I'm doing more testing the Hybrid option 3 for simple cases (find ID or updates) .... with option 2 for example for more complex cases ..
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Mar 13, 2014
This is my codes in a button that if I click it . that information will send to Jtable but the problem is the jtable is in another frame so how can i connect this ?
DefaultTableModel model = (DefaultTableModel)
new admin().tableBagtags.getModel();
if (txtName.getText().equals("")) {
JOptionPane.showMessageDialog(null, "Please fill out all fields.", "Error!", JOptionPane.ERROR_MESSAGE);
[Code] .....
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Nov 27, 2012
Is there a way to inform the Entity Manager or force the JPA provider to reload data from the database? The scenario could be data being updated by a store procedure or direct SQLPlus maintenance, without restarting the Application Server, the JPA need to load the newly updated data from the database.
I think the current JPA API is not enough. The void refresh(java.lang.Object entity) from EntityManager need to pass in the Entity object, I will like to know how to refresh the entire JPA Entity data after the physical table data being update from backend.
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Jun 24, 2015
I have a program which consist of several classes. The program reads a pom file and parses the data and then writes the data to a static table. The issue I'm having is with writing my LIB file data to my table. In the HtmlDataTable Class Im trying to write the files that are read in the lib directory to the table. My table currently consist of 3 columns (missing jar files,Lib Directory files, and POM file data) currently Im only able to write the missing jar files data to my table. In the HtmlDataTable class there is a for statement where I write the missing jar file data to my table. Im also trying to write the contents of the Lib directory within this statement as well. This is where I'm having my issue. My other classes consist of a SAX parser which parses the xml file, a class that creates my static table and a class that compares the jar files in my lib directory to the jar files in my pom file. . Theres a lot of code so I included the parts I felt were useful. If needed I can include the other classes as well.
public class ReadPomFile extends DefaultHandler {
public static void main(String[] args) {
try {
// obtain a SAX based parser to parse XML document
[Code].....
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Feb 17, 2015
creating a table, and this is the code that I go down so far:
import java.util.Scanner;
public class program1 {
public static void main(String[] args)
{
String heading1 = "Quiz 1";
String heading2 = "Quiz 2";
String heading3 = "Test 1";
[code]...
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Nov 5, 2014
I m new to programming and am working on the college project. I have MySQL 5.6.20, Eclipse Kepler and Apache Tomcat 7.0.54. I m trying to retrieve the whole table from MySQL schema into a jsp. All the possible things i can do, i have already tried, but none of them are working.
The following attachment contains the whole project. I have my sql connection code in Sample.java file, which i want to get working in Fetch.jsp on the Submit button click. But it shows the tomcat error as localhost:8080/Sample HTTP Status 404-/Sample ; type Status report; message /Sample; Description The requested resource is not available.
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
[Code] ....
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Jul 19, 2014
I am trying to insert a record to a table in my database . I used the same syntax for 2 tables, one does work and the other does not work . I could not find any explanation for this error
"INSERT INTO CustomerRecord (Name, Number, Adress)"
+" VALUES(?,?,?)"; //first table working well
ps.setString(1,r.getCustomerName());
ps.setString(2,r.getCustomerNumber());
[Code] ....
For some reason one does work but the other does not work it says syntax error near order (table name). I am using sqlite db ...
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Jul 27, 2014
I'm trying to create a simple bar chart from integer values (measuring number of bulldozers) stored in a mySql DB, in the following schema:
Integer rigId PK;
Integer rigQty;
Date recordDate;
String country FK;
I want to plot the date on the x-axis and quantity on y-axis. I can't seem to find any examples of how to render charts from a database. I just find the generic Primefaces 4.0 examples which uses static data like this:
private void createCategoryModel() { // category chart
categoryModel = new CartesianChartModel();
ChartSeries boys = new ChartSeries();
boys.setLabel("Boys");
[Code] ....
I'm really not sure how to adapt the above to a database method nor have any web searches produced useful examples. I tried something like this, but how to find examples or the type of methods I need to use to create a bar graph from Db values:
@ManagedBean(name = "chartb")
@SessionScoped
public class BarChartBean {
private final Map<Integer, Map<String, Number>> rigNums = new HashMap<>();
// private final Map<Integer, Map<String, Number>> HorasOrcadasPorFunci = new HashMap<>();
private CartesianChartModel cartesianChartModel;
[Code] ....
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Apr 16, 2014
I have a superclass used for all the other entity
@MappedSuperclass
public abstract class BssStandardEntityLaravel extends BssStandardEntity
implements InterfacciaBssStandardEntity, Cloneable{
private static final long serialVersionUID = 1L;
@Column(name = "created_at", nullable=true)
@Temporal(TemporalType.TIMESTAMP)
protected Date created_at = new Date();
[Code] ....
When i try to read some data with a JPA controller, this error is raised:
Persistent class "com.bss.libbssabstract.database.entity.BssStandardEntityLaravel" has no table in the database, but the operation requires it. Please check the specification of the MetaData for this class.
org.datanucleus.store.rdbms.exceptions.NoTableManagedException: Persistent class "com.bss.libbssabstract.database.entity.BssStandardEntityLaravel" has no table in the database, but the operation requires it. Please check the specification of the MetaData for this class.
at org.datanucleus.store.rdbms.RDBMSStoreManager.getDatastoreClass(RDBMSStoreManager.java:702)
[Code] ....
It requires BssStandardEntityLaravel table like a normal entity. I used the same entity package in other applications and it works perfectly. Why this error is raised?
I use jpa2.1.0 and datanucleus to enhance classes
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May 3, 2014
In my project I need to add some schedule information into a schedule table in the database..
I am accepting input from a user which direct the parameters here..
I am doing all the required stuff but yet code is not working
There must be some error in date object.
I am using mysql as backend, I have used same kind of code in jsp that is working fine but this is creating error
import java.io.IOException;
import java.io.PrintWriter;
import java.sql.*;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.logging.Level;
import java.util.logging.Logger;
[code].....
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Jul 19, 2014
I am using JSF,richfaces. Need to import data from Excel file and show it in datatable.
How to achieve this?
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Dec 19, 2014
I am using netbeans swing to do my little project . I have one table which is populated by data from a database. I also have another table which should be populated when a user selects a certain row in the first table.Both table have only one column. The logic is when a user selects on row 1,the data in that row should be obtained and should be used to search for certain entities in the database which are returned and used to populate table 2.So after a user selects row1 and decides to select row2 the second table should be updated accordingly. I have attached the java file
/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
package UI;
import java.awt.CardLayout;
import java.sql.SQLException;
import java.util.logging.Level;
[Code] ....
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Mar 3, 2015
I'm using JSF1.2 and IBM websphere portal 7 (Core) not prime or rich faces. I would like to know to sort the JSF data table(<h:datatable /> using Jquery 1.7
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Feb 15, 2014
Need to display data in a table - no of columns are fixed, and rows may vary based on the data available in DB.Display tables in horizontally and 2 tables per row. If it exceeds 3 it should display in next rowsample format to display attached in attachment,Using JSF 2 & richfaces 4.0.
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Jul 1, 2014
After some fiddling, I have the visual format that I want for my dialog.
First, I had to set the scrollHeight for the dataTable to 25% to get have the whole scrollable table contained in the dialog. Why 25%? What is that relative to?
Second, I had to use the !important declaration for the width and height of the dialog to get the sizing to take. Is that normal with PrimeFaces when styling using a CSS class?
<p:dialog widgetVar="notesDialog" header="Handset Notes"
styleClass="notesDialog">
<p:dataTable id="notesTable" widgetVar="notesTable"
var="note" value="#{handsetBean.handsetNotes}"
scrollable="true" resizableColumns="false"
scrollHeight="25%">
[Code] ....
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Oct 31, 2014
i am relatively new to Swing. learning swing concepts for my new project. how can we construct a Hierarchical JTable structure using Swing. Something like a Master-Child table structure with a drill down from Master table to Child Table. Something similar to the image Telerik.
I have seen some examples like TreeTable. But that is not what i am looking for. The Column headings for Master table and child table might differ.
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