SimpleScriptContext setBindings() method in Java with Examples

0 1 1 minute read

The setBindings() method of a SimpleScriptContext class is used to set a Bindings of attributes for the given scope where Bindings and scope are passed as parameters to the method. If the scope is ENGINE_SCOPE the given Bindings replaces the engineScope field. If the scope is GLOBAL_SCOPE the given Bindings replaces the globalScope field.

Syntax:

public void setBindings(Bindings bindings,
                        int scope)

Parameters: This method accepts two-parameters:

bindings which is the Bindings of attributes to set and
scope which is the scope in which to set the attribute.

Return value: This method returns nothing.

Exceptions: This method throws following Exceptions:

NullPointerException: if the value of scope is ENGINE_SCOPE and the specified Bindings is null.
IllegalArgumentException: if the scope is invalid.

Below programs illustrate the SimpleScriptContext.setBindings() method:
Program 1:

// Java program to demonstrate
// SimpleScriptContext.setBindings() method
  
import javax.script.ScriptContext;
import javax.script.SimpleBindings;
import javax.script.SimpleScriptContext;
  
public class GFG {
    public static void main(String[] args)
    {
  
        // create SimpleScriptContext object
        SimpleScriptContext simple
            = new SimpleScriptContext();
  
        // create Bindings
        SimpleBindings bindings
            = new SimpleBindings();
  
        // add some key-value to bindings
        bindings.put("name1", "Value1");
  
        // add bindings to SimpleScriptContext using
        // setBindings() Method
        simple.setBindings(
            bindings,
            ScriptContext.ENGINE_SCOPE);
  
        // print
        System.out.println(
            "name1:"
            + simple.getAttribute("name1"));
    }
}

Output:

name1:Value1

Program 2:

// Java program to demonstrate
// SimpleScriptContext.setBindings() method
  
import javax.script.ScriptContext;
import javax.script.SimpleBindings;
import javax.script.SimpleScriptContext;
  
public class GFG {
    public static void main(String[] args)
    {
  
        // create SimpleScriptContext object
        SimpleScriptContext simple
            = new SimpleScriptContext();
  
        // create Bindings
        SimpleBindings bindings
            = new SimpleBindings();
  
        // add some key-value to bindings
        bindings.put("Team1", "India");
        bindings.put("Team2", "Japan");
        bindings.put("Team3", "Nepal");
  
        // add bindings to SimpleScriptContext using
        // setBindings() Method
        simple.setBindings(
            bindings,
            ScriptContext.ENGINE_SCOPE);
  
        // print
        System.out.println("Team1:"
                           + simple.getAttribute("Team1"));
        System.out.println("Team2:"
                           + simple.getAttribute("Team2"));
        System.out.println("Team3:"
                           + simple.getAttribute("Team3"));
    }
}