Open Education – Page 161

Aug 16

Employment Laws: Employment Insurance, Quit, Fire #34

By Author-Check- Article-or-Video in FromSitesTree.com

From: http://sitestree.com/?p=4952
Categories:34
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Post Data:2009-02-22 07:59:10

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Aug 16

Manitoba: Income : Income Tax #34

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Your income and income tax
http://www.cra-arc.gc.ca/tax/individuals/faq/taxrates-e.html

Federal Tax

* 15% on the first $37,885 of taxable income, + * 22% on the next $37,884 of taxable income (on the portion of taxable income between $37,885 and $75,769), + * 26% on the next $47,415 of taxable income (on the portion of taxable income between $75,769 and $123,184), + * 29% of taxable income over $123,184.

Manitoba Provincial Tax

10.9% on the first $30,544 of taxable income, +12.75% on the next $35,456, +17.4% on the amount over $66,000

Manitoba:Some example
30.5K/year = 1794$/month approx., 828$ approx. bi-weekly after tax
38K/year = 2300$/month approx., 1061$ approx. bi-weekly after tax
42K/year = 2552$/month approx., 1177$ approx. bi-weekly after tax
45K/Year = 2715$/month approx., 1253$ approx. bi-weekly after tax
55k/year = 3258$/month approx., 1503$ bi-weekly after tax
75K/year = 4311$/month approx., 1989$ bi-weekly after tax

From: http://sitestree.com/?p=4860
Categories:34
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Post Data:2013-02-15 18:29:43

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Aug 16

JSP: Custom Tags #37

By Author-Check- Article-or-Video in FromSitesTree.com

Custom Tags = alternatives to java beans for JSP = reduces some limitations of JavaBeans (in JSP) like to few methods to access the bean, you may still require to write much java code in JSP [that we want to avoid]
Overview:
Custom tag with no body should extend TagSupport class that implements Tag interface
Tags extending TagSupport should extend only one method – doStartTag(), and in this case the doStartTag() method should return SKIP_BODY
A simple tag code is shown below:
Next you need to define a tld file – a descriptor file for the tag – XML file.
In the tld files, the most important tag is the tag
The sub-elements of the tag element are: name, tag-class, description, body-content.

Sample:

  SimpleTag  tags.SimpleTag  Sample TLD File  empty

To use the custom tag in a JSP file, You need to provide a directive like:
```
 
```
Example use:
How to add attributes to tags: In the class, declare private variable for each attribute you want, define a setXXX method for each of the attribute
In the tld – file, add an attribute tag for each attribute you want. This attribute tag can have following sub-elements: name, required, rtexprvalue = can the value be an expression, type=class to which the value should typecast to, description
Defining tag body: doStartTag() should return EVAL_VALUE_INCLUDE
A new method named doEndTag() should be defined that will define what will be the effect on the body text.
The doEndTag() method may return EVAL_PAGE = continue to process rest of the JSP page, SKIP_PAGE = stop processing rest of the page
To support body inside the custom tags – body-content tag in the tld file needs to be adjusted: example
```
  SimpleTag  tags.SimpleTag  Sample TLD File  JSP
```
Example use: Body Text

From: http://sitestree.com/?p=4964
Categories:37
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Post Data:2012-12-20 05:06:38

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Aug 16

JSP: Random Information #37

By Author-Check- Article-or-Video in FromSitesTree.com

Three JSP constructs: scripting elements, actions, directives
Scripting elements: expressions, scriptlets, declarations
Expression = translates to println in servlets in _jspService methods
```
 < % = expression %> < % = new java.util.Date() %>
```
inserts values directly to the output
scriptlet: block of java code : directly inserted into the related servlets in the _jspService method:
```
< % java code %>
```
declarations:
```
< %! variable and method declarions%>
```
Directly placed in the body of the translated servlets
>= JSP 1.2 : XML Syntax for expressions, scriptlets, declarations
```
Java ExpressionJava CodeJSP Declaration
```
JSP implicit objects: request, response, out, session
Implicit objects: application = servletContext = persistent data, config = ServletConfig = initialization parameters, pageContext = context to store reference to objects, and page = this, exception = used by error pages :

< %@ directive attribute ="value " %>< %@ directive attribute1 ="value1 " attribute2 ="value2 " ... attributeN ="valueN " %>

JSP Directives : page, include, taglib
page directive attributes: import, extends, session, isThreadSafe, buffer, autoFlush, contentType, pageEncoding, errorPage, isErrorPage, language, and info

< %@ page import="package.class " %>< %@ page import="package.class1,...,package.classN " %>< %@ page extends="somepackage.someclass " %>< %@ page session="true" %>< %@ page session="false" %>< %@ page isThreadSafe="true" %>< %@ page isThreadSafe="false" %> < %@ page buffer="none" %>< %@ page buffer="sizekb" %>< %@ page autoFlush="true" %>< %@ page autoFlush="false" %>< %@ page contentType="MIME-Type " %>< %@ page contentType="MIME-Type ; charset=Character-Set " %>< %@ page contentType="video/mpeg" %>< %@ page pageEncoding="GB_2312-80" %>< %@ page errorPage="Relative URL " %>< %@ page info="Some Message " %>

XML Syntax
Other directives:

< %@ include file="relevantURLspec " %> : output of another file

JSP Custom Tag:

 < %@ taglib uri="TagLibraryURI " prefix="someprefix " %>

JSP Pages and Java Beans: JSP page can include logics in Java Code – not recommended – rather embed code into beans or custom tags
JavaBean: basically a class, visible, also invisible: JSP supports both types:
JavaBeans are accessed through Introspections :
Introspection: a class that extends BeanInfo Interface
JSP action tags for Java Beans: jsp:useBean, jsp:getProperty, jsp:setProperty
jsp:useBean: attributes: id, class, scope=(page,request,session,application), beanName, type,
jsp:getProperty: name = name of the bean = id of jsp:useBean, property = property to access
jsp:setProperty: attributes: name = name of the bean = id of jsp:useBean, property = property to access, value = value to set, use param attribute to extract from request object for setting values
To use a bean from JSP page, place the bean class file in one of the accessible servlet directories
Custom Tags = alternatives to java beans for JSP = reduces some limitations of JavaBeans (in JSP) like to few methods to access the bean, you may still require to write much java code in JSP [that we want to avoid]

From: http://sitestree.com/?p=4963
Categories:37
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Post Data:2007-04-22 17:46:00

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Aug 16

JSP Expression Language #37

By Author-Check- Article-or-Video in FromSitesTree.com

Expression Language-------------------Introduced in JSP 2.0You can write short expressions for different operations [other than using functions]If you want to ignore EL in any page addSome examplesEL=> what does it mean?${3+2-1}=> ${3+2-1} ${"1"+2} => ${"1"+2} ${3%2} => ${3%2} ${(8 div 2) mod 3} => ${(8 div 2) mod 3} ${1<2} => ${1<2}

From: http://sitestree.com/?p=4793
Categories:37
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Post Data:2010-01-28 02:13:10

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Aug 16

JSP Tags #37

By Author-Check- Article-or-Video in FromSitesTree.com

JSP Tag Library (JSTL)

JSP Disadvantage
1. Java code embedded in scriptlets make the
                                
                                         code difficult to understand
2. Reduced code reusability
3. Difficult to modify [Java Code]
4. Java code needs to use Class Casting

JSTL Advantages

1. Better code
2. Enhanced Code reusability
3. No type casting from the request and session objects
4. Expression Language in JSP makes it easier to call getter and setter methods.

Drawback

1. Adds overhead as JSTL adds more into the resultant Servlet
2. Can not do all that Java code can do


Four Libraries:

Core: Basic tags like loops, conditions, and input/output
fmt: Format like date format
xml: XML processing
sql: Database access


Core Tag Library

<%@ taglib prefix="core" uri="http://java.sun.com/jsp/jstl/core" %> 
<core:set var="var" scope="session" value="..."/> 

Conditional
<core:if test="${condition}"> </core:if> 
<core:choose>
     <core:when test="condition1" >
     ...
     </core:when>
    <core:when test="condition2" >
    ...
    </core:when>
    <core:otherwise>
    </core:otherwise>
</core:choose>

<core:otherwise> will be executed only and if only all other conditions fail.


Iterator

Iterator tages are used to traverse an array of objects and process each object (when required)
<c:forEach var="item" items="collection">
</c:forEach>

or

<c:forEach begin="0" end="10" varStatus="status" step="1" >
</c:forEach>


Function Tag Library

Basic String Functions
<%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions" %> 

Example
<%@ taglib uri="/WEB-INF/fn.tld" prefix="fn" %>
<%@ taglib prefix="core" uri="http://java.sun.com/jsp/jstl/core" %> 

<core:set var="test" value="Hello World"/>
Index of l is :- ${fn:indexOf(test, "l")}<br>

From: http://sitestree.com/?p=4792
Categories:37
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Post Data:2007-12-05 06:15:58

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Aug 16

Creating Custom Tags in JSP #37

By Author-Check- Article-or-Video in FromSitesTree.com

How to create custom tags in JSP?You can create custom tags in JSP. Steps:-----1. You have to create a Java file that will define the operation of the custom tag2. For the Java file, you have to extend javax.servlet.jsp.tagext.BodyTagSupport class3. in your implementation, you have to override (re-write) doStartTag(), doEndTag(), and doAfterBody() methods4. Create tag library description file(XML file with .tld extension).Example-------Implement a tag that reverses a stringimport java.io.IOException;import javax.servlet.jsp.JspTagException;import javax.servlet.jsp.JspWriter;import javax.servlet.jsp.tagext.BodyContent;import javax.servlet.jsp.tagext.BodyTagSupport;public class ReverseTag extends BodyTagSupport {    private static final long serialVersionUID = 1L;            //override doStartTag    public int doStartTag() throws JspTagException{        return EVAL_BODY_TAG;    }            //override doEndTag    public int doEndTag() throws JspTagException     {      try {           JspWriter out = pageContext.getOut();      } catch (Exception ex) {           throw new JspTagException("Exception" + ex);      }    return SKIP_BODY; }//reverse the text    public int doAfterBody() throws JspTagException {    BodyContent body = getBodyContent();    try {            JspWriter out = body.getEnclosingWriter();            //get text inside the tag            String bodyContent = body.getString();            //reverse the text            if (bodyContent != null) {                for (int i = bodyContent.length() - 1; i >= 0; i--) {                    out.print(bodyContent.charAt(i));                }            }            out.println();            body.clearBody(); // Clear for next evaluation          } catch (IOException ioe) {               throw new JspTagException("Exception at doAfterBody " + ioe);     }        return (SKIP_BODY);    }}5. Create the taglib descriptor    1.0    1.1                    stringreverse        net.justetc.taglibrary.ReverseTag                    Reverse the text            6. Example use of the custom tag    Custom Tag library
        justetc

From: http://sitestree.com/?p=4791
Categories:37
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Post Data:2010-05-23 22:42:48

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	Agency Name	Specialize in Industries
	Adecco Employment Services Ltd	General – most or all
	Andersen	General – most or all
	Anokiiwin Employment Solutions Inc.	Federal Government
	Brant & Associates	General – most or all
	Careersource Recruitment	Aerospace, Health care, Hospitality
	Centre for Aboriginal Human …	General – most or all
	Charter Management Group (CMG)	General – most or all, Academic, Advertising, Aerospace,…
	David Aplin & Associates Inc	Computers, Direct Marketing, Electronic equipment,…
	Drake	General – most or all
	Employment Projects Of Winnipeg	General – most or all
	G Braha & Associates Ltd	Computers, Information technology, Software
	Global Education Services	Academic
	Harris Consulting Corporation, The	Aerospace, Agri-business, Food manufacturing,…
	Higgins International Inc	Gaming
	Houston Personnel Group, The	General – most or all
	Kee Transport Group Inc	Transportation
	Kelly Services	General – most or all
	Lock & Associates	Consumer goods, Financial services, Health care,…
	Mancomit Int’l Inc	General – most or all, Hi Tech, Information technology
	Manpower	General – most or all
	MER Executive Search	Call centres, Consulting, Manufacturing
	PCGI	General – most or all, Computers, Data processing, Hi Tech,…
	People Bank, The	General – most or all, Financial services,…
	People First HR Services Ltd	General – most or all, Manufacturing
	Personnel Management Group	Agri-business, Automotive, Construction,…
	PriceWaterhouseCoopers	General – most or all
	Progestic Group	General – most or all, Computers, Data processing, Software
	Reaching E-Quality Employment …	General – most or all
	Scarrow & Donald	General – most or all
	Simpson McGrath Inc	General – most or all, Aerospace, Associations,…
	SMD	General – most or all
	Specialty Office Staff	General – most or all
	StafFind	Federal Government, Municipal government
	Sturgeon Creek Enterprises	General – most or all, Hospitality, Manufacturing,…
	Technical Service Consultants of …	General – most or all, Consulting, Construction,…
	TSC Group	General – most or all, Automotive, Manufacturing, Metal,…
	Westwood Employment Link	General – most or all, Manufacturing
	Zen Zen International	General – most or all, Computers, Data processing, Hi Tech,…

Understanding Host-Only Networking in Oracle VirtualBox: Concepts, Tools, IP Addressing, DHCP, and Practical Options

Why a DHCP server join the Active Directory

How to Install DHCP role

Power Shell: DHCP Server and Client

How to? Disable VirtualBox DHCP for host-only network

Employment Laws: Employment Insurance, Quit, Fire #34

Salary By Fields #34

Toronto: Top 50 Employers #34

Winnipeg Recruiters #34

Manitoba: Income : Income Tax #34

JSP: Custom Tags #37

JSP: Random Information #37

JSP Expression Language #37

JSP Tags #37

Creating Custom Tags in JSP #37

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Understanding Host-Only Networking in Oracle VirtualBox: Concepts, Tools, IP Addressing, DHCP, and Practical Options

Why a DHCP server join the Active Directory

How to Install DHCP role

Power Shell: DHCP Server and Client

How to? Disable VirtualBox DHCP for host-only network

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