#include <berryPropertyTester.h>

Inheritance diagram for berry::PropertyTester:

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Collaboration diagram for berry::PropertyTester:

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Public Member Functions
void	InternalInitialize (PropertyTesterDescriptor::Pointer descriptor)

PropertyTesterDescriptor::Pointer	InternalCreateDescriptor ()

bool	Handles (const QString &namespaze, const QString &property) override

bool	IsInstantiated () override

bool	IsDeclaringPluginActive () override

IPropertyTester *	Instantiate () override

Public Member Functions inherited from berry::IPropertyTester
	berryObjectMacro (berry::IPropertyTester)

	~IPropertyTester () override

virtual bool	Test (Object::ConstPointer receiver, const QString &property, const QList< Object::Pointer > &args, Object::Pointer expectedValue)=0

Public Member Functions inherited from berry::Object
virtual QString	GetClassName () const

virtual Reflection::TypeInfo	GetTypeInfo () const

virtual QList< Reflection::TypeInfo >	GetSuperclasses () const

virtual void	Delete ()

QDebug	Print (QDebug os, Indent Indent=0) const

virtual QString	ToString () const

virtual uint	HashCode () const

virtual bool	operator< (const Object *) const

void	Register () const

void	UnRegister (bool del=true) const

int	GetReferenceCount () const

void	SetReferenceCount (int)

void	AddDestroyListener (const MessageAbstractDelegate<> &delegate) const

void	RemoveDestroyListener (const MessageAbstractDelegate<> &delegate) const

virtual bool	operator== (const Object *) const

Additional Inherited Members
Public Types inherited from berry::Object
typedef Object	Self

typedef berry::SmartPointer< Self >	Pointer

typedef berry::SmartPointer< const Self >	ConstPointer

typedef berry::WeakPointer< Self >	WeakPtr

typedef berry::WeakPointer< const Self >	ConstWeakPtr

Static Public Member Functions inherited from berry::Object
static const char *	GetStaticClassName ()

static Reflection::TypeInfo	GetStaticTypeInfo ()

static QList< Reflection::TypeInfo >	GetStaticSuperclasses ()

Protected Member Functions inherited from berry::Object
	Object ()

virtual	~Object ()

virtual QDebug	PrintSelf (QDebug os, Indent indent) const

virtual QDebug	PrintHeader (QDebug os, Indent indent) const

virtual QDebug	PrintTrailer (QDebug os, Indent indent) const

Protected Attributes inherited from berry::Object
QAtomicInt	m_ReferenceCount

QMutex	m_ReferenceCountLock

Detailed Description

Abstract superclass of all property testers. Implementation classes of the extension point org.blueberry.core.expresssions.propertyTesters must extend PropertyTester.

A property tester implements the property tests enumerated in the property tester extension point. For the following property test extension

<propertyTester
  namespace="org.blueberry.jdt.core"
  id="org.blueberry.jdt.core.IPackageFragmentTester"
  properties="isDefaultPackage"
  type="org.blueberry.jdt.core.IPackageFragment"
  class="org.blueberry.demo.MyPackageFragmentTester">
</propertyTester>

the corresponding implementation class looks like:

public class MyPackageFragmentTester {
    public boolean test(Object receiver, String property, Object[] args, Object expectedValue) {
        IPackageFragment fragement= (IPackageFragment)receiver;
        if ("isDefaultPackage".equals(property)) {
            return expectedValue == null
             ? fragement.isDefaultPackage()
             : fragement.isDefaultPackage() == ((Boolean)expectedValue).booleanValue();
        }
        Assert.isTrue(false);
        return false;
    }
}

The property can then be used in a test expression as follows:

  <instanceof value="org.blueberry.core.IPackageFragment"/>
  <test property="org.blueberry.jdt.core.isDefaultPackage"/>

There is no guarantee that the same instance of a property tester is used to handle <test property="..."/> requests. So property testers should always be implemented in a stateless fashion.

Definition at line 68 of file berryPropertyTester.h.

Member Function Documentation

◆ Handles()

bool berry::PropertyTester::Handles	(	const QString &	namespaze,
		const QString &	property
	)

overridevirtual

Returns whether the property tester can handle the given property or not.

Parameters

namespaze	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

Implements berry::IPropertyTester.

◆ Instantiate()

IPropertyTester* berry::PropertyTester::Instantiate ( )

overridevirtual

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

Exceptions

CoreException if the implementation class cannot be loaded

Implements berry::IPropertyTester.

◆ InternalCreateDescriptor()

PropertyTesterDescriptor::Pointer berry::PropertyTester::InternalCreateDescriptor ( )

Note: this method is for internal use only. Clients must not call this method.

Returns: the property tester descriptor

◆ InternalInitialize()

void berry::PropertyTester::InternalInitialize ( PropertyTesterDescriptor::Pointer descriptor )

Initialize the property tester with the given name space and property.

Note: this method is for internal use only. Clients must not call this method.

Parameters

descriptor the descriptor object for this tester

◆ IsDeclaringPluginActive()

bool berry::PropertyTester::IsDeclaringPluginActive ( )

overridevirtual

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.