com.aspose.slides

Class PresentationLockingBehavior

java.lang.Object

com.aspose.ms.System.ValueType<com.aspose.ms.System.Enum>

com.aspose.ms.System.Enum

com.aspose.slides.PresentationLockingBehavior

public final class PresentationLockingBehavior
extends com.aspose.ms.System.Enum

Represents the behavior regarding treating the IPresentation source (file or InputStream) while loading and working with an instance of IPresentation.

 
 BlobManagementOptions blobOptions = new BlobManagementOptions();
 blobOptions.setPresentationLockingBehavior(PresentationLockingBehavior.KeepLocked);
 LoadOptions loadOptions = new LoadOptions();
 loadOptions.setBlobManagementOptions(blobOptions);
 IPresentation pres = new Presentation("pres.pptx", loadOptions);
 
 

The source is the parameter passed to the IPresentation constructor. In the example below, the source is the "pres.pptx" file: For this example, the source ("pres.pptx" file) will be locked for a IPresentation instance lifetime, i.e. can't be changed or deleted by the other process.

Nested Class Summary

Nested classes/interfaces inherited from class com.aspose.ms.System.Enum

com.aspose.ms.System.Enum.AbstractEnum, com.aspose.ms.System.Enum.FlaggedEnum, com.aspose.ms.System.Enum.ObjectEnum, com.aspose.ms.System.Enum.SimpleEnum

Field Summary

Fields

Modifier and Type	Field and Description
static int	KeepLocked The source will be locked for a whole lifetime of IPresentation instance, until it will be disposed.
static int	LoadAndRelease The source will be locked only for a time of IPresentation constructor execution.

Fields inherited from class com.aspose.ms.System.Enum

EnumSeparatorCharArray

Method Summary

Methods inherited from class com.aspose.ms.System.Enum

Clone, CloneTo, format, format, get_Caption, get_Value, getName, getName, getNames, getNames, getUnderlyingType, getUnderlyingType, getValue, getValues, isDefined, isDefined, isDefined, isDefined, parse, parse, parse, parse, register, toObject, toString

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

LoadAndRelease

public static final int LoadAndRelease

The source will be locked only for a time of IPresentation constructor execution.

If (IBlobManagementOptions.isTemporaryFilesAllowed()/IBlobManagementOptions.setTemporaryFilesAllowed(boolean)) is set to false, all BLOBs will be loaded into memory. Otherwise, other means such a temporary files might be used.

This behavior is slower than KeepLocked, and if it is possible to pass the ownership of the source to IPresentation, it is recommended to use KeepLocked.

See Also:

Constant Field Values

KeepLocked

public static final int KeepLocked

The source will be locked for a whole lifetime of IPresentation instance, until it will be disposed.

IBlobManagementOptions.isTemporaryFilesAllowed()(IBlobManagementOptions.isTemporaryFilesAllowed()/IBlobManagementOptions.setTemporaryFilesAllowed(boolean)) is must be set to true for using this behavior, otherwise exception will be thrown.

This behavior is recommended, it is faster and consumes less memory than LoadAndRelease.

See Also:

Constant Field Values