A general purpose reader of data from avro streams. More...
Inheritance diagram for Avro.Generic.PreresolvingDatumReader< T >:
Collaboration diagram for Avro.Generic.PreresolvingDatumReader< T >:
Classes | |
| interface | ArrayAccess |
| interface | EnumAccess |
| interface | FixedAccess |
| interface | MapAccess |
| interface | RecordAccess |
Public Member Functions | |
| T | Read (T reuse, Decoder decoder) |
| Read a datum. More... | |
Protected Member Functions | |
| delegate object | ReadItem (object reuse, Decoder dec) |
| PreresolvingDatumReader (Schema writerSchema, Schema readerSchema) | |
| abstract ArrayAccess | GetArrayAccess (ArraySchema readerSchema) |
| abstract EnumAccess | GetEnumAccess (EnumSchema readerSchema) |
| abstract MapAccess | GetMapAccess (MapSchema readerSchema) |
| abstract RecordAccess | GetRecordAccess (RecordSchema readerSchema) |
| abstract FixedAccess | GetFixedAccess (FixedSchema readerSchema) |
| virtual bool | IsReusable (Schema.Type tag) |
| Indicates if it's possible to reuse an object of the specified type. More... | |
Static Protected Member Functions | |
| static Schema | FindBranch (UnionSchema us, Schema s) |
Properties | |
| Schema | ReaderSchema [get] |
| Schema | WriterSchema [get] |
| Properties inherited from Avro.Generic.DatumReader< T > | |
| Schema | ReaderSchema [get] |
| Schema | WriterSchema [get] |
Detailed Description
A general purpose reader of data from avro streams.
This reader analyzes and resolves the reader and writer schemas when constructed so that reads can be more efficient. Once constructed, a reader can be reused or shared among threads to avoid incurring more resolution costs.
Definition at line 29 of file PreresolvingDatumReader.cs.
Constructor & Destructor Documentation
◆ PreresolvingDatumReader()
|
inlineprotected |
Definition at line 46 of file PreresolvingDatumReader.cs.
Member Function Documentation
◆ FindBranch()
|
inlinestaticprotected |
Definition at line 367 of file PreresolvingDatumReader.cs.
◆ GetArrayAccess()
|
protectedpure virtual |
Implemented in Avro.Specific.SpecificDatumReader< T >, and Avro.Generic.GenericDatumReader< T >.
◆ GetEnumAccess()
|
protectedpure virtual |
Implemented in Avro.Specific.SpecificDatumReader< T >, and Avro.Generic.GenericDatumReader< T >.
◆ GetFixedAccess()
|
protectedpure virtual |
Implemented in Avro.Specific.SpecificDatumReader< T >, and Avro.Generic.GenericDatumReader< T >.
◆ GetMapAccess()
|
protectedpure virtual |
Implemented in Avro.Specific.SpecificDatumReader< T >, and Avro.Generic.GenericDatumReader< T >.
◆ GetRecordAccess()
|
protectedpure virtual |
Implemented in Avro.Specific.SpecificDatumReader< T >, and Avro.Generic.GenericDatumReader< T >.
◆ IsReusable()
|
inlineprotectedvirtual |
Indicates if it's possible to reuse an object of the specified type.
Generally false for immutable objects like int, long, string, etc but may differ between the Specific and Generic implementations. Used to avoid retrieving the existing value if it's not reusable.
Reimplemented in Avro.Generic.GenericDatumReader< T >, and Avro.Specific.SpecificDatumReader< T >.
Definition at line 460 of file PreresolvingDatumReader.cs.
◆ Read()
|
inline |
Read a datum.
Traverse the schema, depth-first, reading all leaf values in the schema into a datum that is returned. If the provided datum is non-null it may be reused and returned.
Implements Avro.Generic.DatumReader< T >.
Definition at line 55 of file PreresolvingDatumReader.cs.
◆ ReadItem()
|
protected |
Property Documentation
◆ ReaderSchema
|
get |
Definition at line 31 of file PreresolvingDatumReader.cs.
◆ WriterSchema
|
get |
Definition at line 32 of file PreresolvingDatumReader.cs.
The documentation for this class was generated from the following file:
- _build/public-os_ubuntu24.04-arch_amd64-cc_gcc_13.3.0/install/Avro/src/apache/main/Generic/PreresolvingDatumReader.cs
