IBlobManagementOptions
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]IBlobManagementOptions class
A Binary Large Object (BLOB) is a binary data stored as a single entity - i.e. BLOB can be an audio, video or presentation itself. A number of techniques are used to optimize memory consumption while working with BLOBs - which was already stored in the presentation or be added later programmatically. Using IBlobManagementOptions you can change a different behavior aspects regarding BLOBs handling for the IPresentation instance lifetime.
class IBlobManagementOptions : public virtual System::Object
Methods
| Method | Description |
|---|---|
| virtual bool Equals(ptr) | Compares objects using C# Object.Equals semantics. |
| static std::enable_if<IsSmartPtr<T1>::value&&IsSmartPtr<T2>::value, bool>::type Equals(T1 const&, T2 const&) | Compares reference type objects in C# style. |
| static std::enable_if<!IsSmartPtr<T1>::value&&!IsSmartPtr<T2>::value, bool>::type Equals(T1 const&, T2 const&) | Compares value type objects in C# style. |
| static bool Equals(float const&, float const&) | Emulates C#-style floating point comparison where two NaNs are considered equal even though according to IEC 60559:1989 NaN is not equal to any value, including NaN. |
| static bool Equals(double const&, double const&) | Emulates C#-style floating point comparison where two NaNs are considered equal even though according to IEC 60559:1989 NaN is not equal to any value, including NaN. |
| virtual bool FastCast(const Details::FastRttiBase&, void **) const | For internal purposes only. |
| virtual bool get_IsTemporaryFilesAllowed() | This property defines if temporary files can be created while working with BLOBs, what greatly decreases the memory consumption but requires permissions to create files. |
| virtual uint64_t get_MaxBlobsBytesInMemory() | Defines the maximum amount (in bytes) that all BLOBs in total may occupy in memory. First, all BLOBs loading into memory as default behavior and only when it reaches the limit defined by this property, other mechanisms (such as temporary files) can be involved. In terms of performance, the most efficient way is storing BLOBs in memory, but from the other side, it leads to a high memory consumption what may be undesirable. Using this property, you may set the optimal behavior for your environment or other requirements. |
| virtual Aspose::Slides::PresentationLockingBehavior get_PresentationLockingBehavior() | This property defines if an instance of the Presentation class can be an owner of the source - file or stream during the instance lifetime. If the instance is an owner, it locks the source. This helps to improve memory consumption and performance while working with BLOBs, but the source (stream or file) can’t be changed during Presentation’s instance lifetime. This is an example: |
| virtual System::String get_TempFilesRootPath() | The root path where temporary files will be created. System temorary directory will be used by default. Hosting process should have permissions to create files and folders there. |
| Detail::SmartPtrCounter * GetCounter() | Gets reference counter data structure associated with the object. |
| virtual int32_t GetHashCode() const | Analog of C# Object.GetHashCode() method. Enables hashing of custom objects. |
| virtual const TypeInfo& GetType() const | Gets actual type of object. Analog of C# System.Object.GetType() call. |
| virtual bool Is(const TypeInfo&) const | Check if object represents an instance of type described by targetType. Analog of C# ‘is’ operator. |
| void Lock() | Implements C# lock() statement locking. Call directly or use LockContext sentry object. |
| virtual ptr MemberwiseClone() const | Analog of C# Object.MemberwiseClone() method. Enables cloning custom types. |
| Object() | Creates object. Initializes all internal data structures. |
| Object(Object const&) | Copy constructor. Doesn’t copy anything, really, just initializes new object and enables copy constructing subclasses. |
| Object& operator=(Object const&) | Assignment operator. Doesn’t copy anything, really, just initializes new object and enables copy constructing subclasses. |
| static bool ReferenceEquals(ptr const&, ptr const&) | Compares objects by reference. |
| static std::enable_if<!IsSmartPtr<T>::value, bool>::type ReferenceEquals(T const&, T const&) | Compares objects by reference. |
| static std::enable_if<!IsSmartPtr<T>::value, bool>::type ReferenceEquals(T const&, std::nullptr_t) | Reference-compares value type object with nullptr. |
| bool ReferenceEquals(String const&, std::nullptr_t) | Specialization of Object::ReferenceEquals for case of string and nullptr. |
| bool ReferenceEquals(String const&, String const&) | Specialization of Object::ReferenceEquals for case of strings. |
| int RemovedSharedRefs(int) | Decreases shared reference count by specified value. |
| virtual void set_IsTemporaryFilesAllowed(bool) | This property defines if temporary files can be created while working with BLOBs, what greatly decreases the memory consumption but requires permissions to create files. |
| virtual void set_MaxBlobsBytesInMemory(uint64_t) | Defines the maximum amount (in bytes) that all BLOBs in total may occupy in memory. First, all BLOBs loading into memory as default behavior and only when it reaches the limit defined by this property, other mechanisms (such as temporary files) can be involved. In terms of performance, the most efficient way is storing BLOBs in memory, but from the other side, it leads to a high memory consumption what may be undesirable. Using this property, you may set the optimal behavior for your environment or other requirements. |
| virtual void set_PresentationLockingBehavior(Aspose::Slides::PresentationLockingBehavior) | This property defines if an instance of the Presentation class can be an owner of the source - file or stream during the instance lifetime. If the instance is an owner, it locks the source. This helps to improve memory consumption and performance while working with BLOBs, but the source (stream or file) can’t be changed during Presentation’s instance lifetime. This is an example: |
| virtual void set_TempFilesRootPath(System::String) | The root path where temporary files will be created. System temorary directory will be used by default. Hosting process should have permissions to create files and folders there. |
| virtual void SetTemplateWeakPtr(uint32_t) | Set n’th template argument a weak pointer (rather than shared). Allows switching pointers in containers to weak mode. |
| int SharedCount() const | Gets current value of shared reference counter. |
| Object * SharedRefAdded() | Increments shared reference count. Shouldn’t be called directly; instead, use smart pointers or ThisProtector. |
| int SharedRefRemovedSafe() | Decrements and returns shared reference count. Shouldn’t be called directly; instead, use smart pointers or ThisProtector. |
| virtual String ToString() const | Analog of C# Object.ToString() method. Enables converting custom objects to string. |
| static const TypeInfo& Type() | Implements C# typeof(System.Object) construct. |
| void Unlock() | Implements C# lock() statement unlocking. Call directly or use LockContext sentry object. |
| Detail::SmartPtrCounter * WeakRefAdded() | Increments weak reference count. Shouldn’t be called directly; instead, use smart pointers or ThisProtector. |
| void WeakRefRemoved() | Decrements weak reference count. Shouldn’t be called directly; instead, use smart pointers or ThisProtector. |
| virtual ~Object() | Destroys object. Frees all internal data structures. |
See Also
- Class Object
- Namespace Aspose::Slides
- Library Aspose.Slides