Public Member Functions | Protected Member Functions | Protected Attributes | List of all members
HdSchema Class Reference

Schema classes represent a structured view of the inherently unstructured container data source passed into the constructor. More...

Inherited by HdBasisCurvesSchema, HdBasisCurvesTopologySchema, HdCameraSchema, HdCapsuleSchema, HdCategoriesSchema, HdConeSchema, HdCoordSysBindingSchema, HdCubeSchema, HdCylinderSchema, HdDependenciesSchema, HdDependencySchema, HdExtComputationInputComputationSchema, HdExtComputationOutputSchema, HdExtComputationPrimvarSchema, HdExtComputationPrimvarsSchema, HdExtComputationSchema, HdExtentSchema, HdGeomSubsetSchema, HdGeomSubsetsSchema, HdInstanceCategoriesSchema, HdInstancedBySchema, HdInstancerTopologySchema, HdInstanceSchema, HdLegacyDisplayStyleSchema, HdLightSchema, HdMaterialBindingSchema, HdMaterialConnectionSchema, HdMaterialNetworkSchema, HdMaterialNodeSchema, HdMaterialSchema, HdMeshSchema, HdMeshTopologySchema, HdPrimvarSchema, HdPrimvarsSchema, HdPurposeSchema, HdRenderBufferSchema, HdRenderSettingsSchema, HdSampleFilterSchema, HdSphereSchema, HdSubdivisionTagsSchema, HdVisibilitySchema, HdVolumeFieldBindingSchema, HdVolumeFieldSchema, HdXformSchema, and UsdImagingModelSchema.

Public Member Functions

 HdSchema (HdContainerDataSourceHandle container)
 
HD_API HdContainerDataSourceHandle GetContainer ()
 Returns the container data source that this schema is interpreting. More...
 
HD_API bool IsDefined () const
 
 operator bool () const
 Returns true if this schema is applied on top of a non-null container. More...
 

Protected Member Functions

template<typename T >
T::Handle _GetTypedDataSource (TfToken name)
 Returns a datasource of the requested type for the given name: schema implementations can use this to ask for child containers, sampled values, vectors, etc. More...
 

Protected Attributes

HdContainerDataSourceHandle _container
 

Detailed Description

Schema classes represent a structured view of the inherently unstructured container data source passed into the constructor.

They're used to represent what fields a given object is expected to have. Note that a schema can be applied to a container which doesn't contain all of the named fields; in that case, some of the field accessors will return null, and the caller should use default values for those fields.

Definition at line 42 of file schema.h.

Member Function Documentation

◆ _GetTypedDataSource()

T::Handle _GetTypedDataSource ( TfToken  name)
inlineprotected

Returns a datasource of the requested type for the given name: schema implementations can use this to ask for child containers, sampled values, vectors, etc.

If the key has the wrong type, this function returns null.

Definition at line 68 of file schema.h.

◆ GetContainer()

HD_API HdContainerDataSourceHandle GetContainer ( )

Returns the container data source that this schema is interpreting.

◆ operator bool()

operator bool ( ) const
inlineexplicit

Returns true if this schema is applied on top of a non-null container.

Definition at line 57 of file schema.h.

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