plTagRegistry Class Reference

The tag registry for tags in tag sets. More...

#include <TagRegistry.h>

Public Member Functions
const plTag &	RegisterTag (plStringView sTagString)
	Ensures the tag with the given name exists and returns a pointer to it.
const plTag &	RegisterTag (const plHashedString &sTagString)
	Ensures the tag with the given name exists and returns a pointer to it.
const plTag *	GetTagByName (const plTempHashedString &sTagString) const
	Searches for a tag with the given name and returns a pointer to it.
const plTag *	GetTagByMurmurHash (plUInt32 uiMurmurHash) const
	Searches for a tag with the given murmur hash. This function is only for backwards compatibility.
const plTag *	GetTagByIndex (plUInt32 uiIndex) const
	Returns the tag with the given index.
plUInt32	GetNumTags () const
	Returns the number of registered tags.
plResult	Load (plStreamReader &inout_stream)
	Loads the saved state and integrates it into this registry. Does not discard previously registered tag information. This function is only for backwards compatibility.

Static Public Member Functions
static plTagRegistry &	GetGlobalRegistry ()

Protected Attributes
plMutex	m_TagRegistryMutex
plMap< plTempHashedString, plTag >	m_RegisteredTags
plDeque< plTag * >	m_TagsByIndex

Detailed Description

The tag registry for tags in tag sets.

Normal usage of the tag registry is to get the global tag registry instance via plTagRegistry::GetGlobalRegistry() and to use this instance to register and get tags. Certain special cases (e.g. tests) may actually need their own instance of the tag registry. Note however that tags which were registered with one registry shouldn't be used with tag sets filled with tags from another registry since there may be conflicting tag assignments. The tag registry registration and tag retrieval functions are thread safe due to a mutex.

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The documentation for this class was generated from the following files:

• Code/Engine/Foundation/Types/TagRegistry.h
• Code/Engine/Foundation/Types/Implementation/TagRegistry.cpp