Java Code Examples for javax.script.ScriptEngineManager.getEngineFactories()

The following are Jave code examples for showing how to use getEngineFactories() of the javax.script.ScriptEngineManager class. You can vote up the examples you like. Your votes will be used in our system to get more good examples.

private boolean isJavaScriptAvailable() {
    if(isJSAvailableChecked) {
        return isJSAvailable;
    }
    ScriptEngineManager mgr = new ScriptEngineManager();
    List<ScriptEngineFactory> factories = mgr.getEngineFactories();
    for (ScriptEngineFactory factory: factories) {
        List<String> engNames = factory.getNames();
        for(String name: engNames) {
            if(name.equalsIgnoreCase("js") || name.equalsIgnoreCase("javascript")) { //NOI18N
                isJSAvailableChecked = true;
                isJSAvailable = true;
                return isJSAvailable;
            }
        }
    }
    isJSAvailableChecked = true;
    isJSAvailable = false;
    return isJSAvailable;
}

OAF:

Example

try { ScriptEngineManager mgr = new ScriptEngineManager(); ScriptEngineFactory[] factories = (ScriptEngineFactory[]) mgr.getEngineFactories(); for (ScriptEngineFactory factory: factories) { String[] engNames = factory.getNames(); for(String name: engNames) { System.out.println(name); } } } catch (Exception e) { }

System Variables In Oracle Forms list

List Of System Varible That are use iN oracle Forms

System variable

SYSTEM.BLOCK_STATUS

SYSTEM.COORDINATION_OPERATION

SYSTEM.CURRENT_BLOCK

SYSTEM.CURRENT_DATETIME

SYSTEM.CURRENT_FORM

SYSTEM.CURRENT_ITEM

SYSTEM.CURRENT_VALUE

SYSTEM.CURSOR_BLOCK

SYSTEM.CURSOR_ITEM

SYSTEM.CURSOR_RECORD

SYSTEM.CURSOR_VALUE

SYSTEM.DATE_THRESHOLD*

SYSTEM.EFFECTIVE_DATE*

SYSTEM.EVENT_WINDOW

SYSTEM.FORM_STATUS

SYSTEM.LAST_FORM

SYSTEM.LAST_QUERY

SYSTEM.LAST_RECORD

SYSTEM.MASTER_BLOCK

SYSTEM.MESSAGE_LEVEL*

SYSTEM.MODE

SYSTEM.MOUSE_BUTTON_PRESSED

SYSTEM.MOUSE_BUTTON_SHIFT_STATE

SYSTEM.MOUSE_ITEM

SYSTEM.MOUSE_CANVAS

SYSTEM.MOUSE_X_POS

SYSTEM.MOUSE_Y_POS

SYSTEM.MOUSE_RECORD

SYSTEM.MOUSE_RECORD_OFFSET

SYSTEM.RECORD_STATUS

SYSTEM.RIGHT_MOUSE_TRIGGER_NODE

SYSTEM.SUPPRESS_WORKING*

SYSTEM.TAB_NEW_PAGE

SYSTEM.TAB_PREVIOUS_PAGE

SYSTEM.TRIGGER_BLOCK

SYSTEM.TRIGGER_ITEM

SYSTEM.TRIGGER_MENUOPTION

SYSTEM.TRIGGER_NODE

SYSTEM.TRIGGER_NODE_SELECTED

SYSTEM.TRIGGER_RECORD

Decode Function

DECODE

Syntax

Purpose

DECODE compares expr to each search value one by one.

If expr is equal to a search,

Then Oracle Database returns the corresponding result.

If no match is found, then

Oracle returns default. If default is omitted, then Oracle returns null.

The arguments can be any of the numeric types (NUMBER, BINARY_FLOAT, or BINARY_

DOUBLE) or character types.

The maximum number of components in the DECODE function, including expr,

Searches, results, and default, is 255.

DECODE ( expr , search , result

,

, default

)

Test Case

Create table plch_employees (

   Id    integer primary key

, name varchar2 (40)

, gender char (1)       

)

/

Insert into plch_employees values (100, 'Mr. John Doe','M')

/

Insert into plch_employees values (200, 'Mrs. Jane Doe','F')

/

Insert into plch_employees values (300, 'Ms. Julie Doe','F')

/

Insert into plch_employees values (400, 'Mr. Jack Doe','M')

/

Insert into plch_employees values (500, 'Dr. James Doe','M')

/

Insert into plch_employees values (600, 'Jonathan Doe','M')

/

Insert into plch_employees values (700, 'Jeff Jr. Doe','M')

/

Commit

/

select id, name, decode(gender, 'M', 'MALE', 'F', 'FEMALE', gender)

  from plch_employees;

Test Case:

/*

User have requirement ( if parameter value is 100 then query only show the result of those employee who have id no 100

Else query will show all employees

Expect 100 no ID)

*/

---we can handle it from our decode function 

Select id, name, and decode (gender, ‘M’, MALE, ‘F’, ‘FEMALE’, gender)

  From plch_employees

  Where decode (id, 100,'Y','F') =decode (:v_id, 100,'Y','F');

Storing Expression Value in PLSQL and Java

Every Expression return True or False.
So we can easily store their value in Boolean expression

Using this Method we can easily check conditions instead of testing these scenarios in IF-ELSE condition .

---Example of Storing Expression Value in PLSQL

---Example of Storing Expression Value in PLSQL

--By mFaisal

declare

lExpressionValue boolean;

begin

  --- Expression Value

  lExpressionValue:=1=2 or 2=2;

 

  -- Is True Then

  ---1

  ---else

  --2

 

if  lExpressionValue Then

    --1

  DBMS_OUTPUT.put_line('Expression is  True..');

  else

    --- 2

  DBMS_OUTPUT.put_line('Expression is not True..');

  end if;

end;

Example of JAVA Code

public class Server {

   

    public static void main(String[] args) {

        Server.isTrue((1==2));

//isTrue((1=1)));

    }

   

    public static void isTrue(boolean expression) {

    if (expression) {

       System.out.println("Expression is true.");

    }

    else

    {

        System.out.println("Expression is not true.");

    }

    }

   

   

}