All Known Implementing Classes:

PropertyTester
```
public interface IPropertyTester
```
A property tester can be used to add additional properties to test to an existing type.
This interface is not intended to be implemented by clients. Clients should subclass type PropertyTester.

Since:

3.0

Restriction:

This interface is not intended to be implemented by clients.

Restriction:

This interface is not intended to be extended by clients.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`handles(String namespace, String property)`	Returns whether the property tester can handle the given property or not.
`IPropertyTester`	`instantiate()`	Loads the implementation class for this property tester and returns an instance of this class.
`boolean`	`isDeclaringPluginActive()`	Returns `true` if the implementation class of this property tester can be loaded.
`boolean`	`isInstantiated()`	Returns whether the implementation class for this property tester is loaded or not.
`boolean`	`test(Object receiver, String property, Object[] args, Object expectedValue)`	Executes the property test determined by the parameter `property`.

- Method Detail
  - handles
```
boolean handles(String namespace,
                String property)
```
    Returns whether the property tester can handle the given property or not.
    
    Parameters:
    
    namespace - the name space to be considered
    
    property - the property to test
    
    Returns:
    
    true if the tester provides an implementation for the given property; otherwise false is returned
  - isInstantiated
```
boolean isInstantiated()
```
    Returns whether the implementation class for this property tester is loaded or not.
    
    Returns:
    
    trueif the implementation class is loaded; false otherwise
  - isDeclaringPluginActive
```
boolean isDeclaringPluginActive()
```
    Returns true if the implementation class of this property tester can be loaded. This is the case if the plug-in providing the implementation class is active. Returns false otherwise.
    
    Returns:
    
    whether the implementation class can be loaded or not
  - instantiate
```
IPropertyTester instantiate()
                     throws CoreException
```
    Loads the implementation class for this property tester and returns an instance of this class.
    
    Returns:
    
    an instance of the implementation class for this property tester
    
    Throws:
    
    CoreException - if the implementation class cannot be loaded
  - test
```
boolean test(Object receiver,
             String property,
             Object[] args,
             Object expectedValue)
```
    Executes the property test determined by the parameter property.
    
    Parameters:
    
    receiver - the receiver of the property test
    
    property - the property to test
    
    args - additional arguments to evaluate the property. If no arguments are specified in the test expression an array of length 0 is passed
    
    expectedValue - the expected value of the property. The value is either of type java.lang.String or a boxed base type. If no value was specified in the test expressions then null is passed
    
    Returns:
    
    returns true if the property is equal to the expected value; otherwise false is returned

Interface IPropertyTester

Method Summary

Method Detail

handles

isInstantiated

isDeclaringPluginActive

instantiate

test