forked from TrueCloudLab/frostfs-api
87 lines
3.1 KiB
Markdown
87 lines
3.1 KiB
Markdown
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# Protocol Documentation
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<a name="top"></a>
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## Table of Contents
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- [query/types.proto](#query/types.proto)
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- Messages
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- [Filter](#query.Filter)
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- [Query](#query.Query)
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- [Scalar Value Types](#scalar-value-types)
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<a name="query/types.proto"></a>
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<p align="right"><a href="#top">Top</a></p>
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## query/types.proto
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<!-- end services -->
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<a name="query.Filter"></a>
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### Message Filter
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| Field | Type | Label | Description |
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| ----- | ---- | ----- | ----------- |
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| type | [Filter.Type](#query.Filter.Type) | | Type of filter |
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| Name | [string](#string) | | Name of field that should be filtered |
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| Value | [string](#string) | | Value that should be used for filter |
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<a name="query.Query"></a>
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### Message Query
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| Field | Type | Label | Description |
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| ----- | ---- | ----- | ----------- |
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| Filters | [Filter](#query.Filter) | repeated | Filters is set of filters, should not be empty |
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<!-- end messages -->
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<a name="query.Filter.Type"></a>
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### Filter.Type
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| Name | Number | Description |
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| ---- | ------ | ----------- |
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| Exact | 0 | Exact sets when value of filter should be equal to the header value |
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| Regex | 1 | Regex sets when value of filter should match the header value by the regular expression |
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<!-- end enums -->
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## Scalar Value Types
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| .proto Type | Notes | C++ Type | Java Type | Python Type |
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| ----------- | ----- | -------- | --------- | ----------- |
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| <a name="double" /> double | | double | double | float |
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| <a name="float" /> float | | float | float | float |
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| <a name="int32" /> int32 | Uses variable-length encoding. Inefficient for encoding negative numbers – if your field is likely to have negative values, use sint32 instead. | int32 | int | int |
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| <a name="int64" /> int64 | Uses variable-length encoding. Inefficient for encoding negative numbers – if your field is likely to have negative values, use sint64 instead. | int64 | long | int/long |
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| <a name="uint32" /> uint32 | Uses variable-length encoding. | uint32 | int | int/long |
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| <a name="uint64" /> uint64 | Uses variable-length encoding. | uint64 | long | int/long |
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| <a name="sint32" /> sint32 | Uses variable-length encoding. Signed int value. These more efficiently encode negative numbers than regular int32s. | int32 | int | int |
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| <a name="sint64" /> sint64 | Uses variable-length encoding. Signed int value. These more efficiently encode negative numbers than regular int64s. | int64 | long | int/long |
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| <a name="fixed32" /> fixed32 | Always four bytes. More efficient than uint32 if values are often greater than 2^28. | uint32 | int | int |
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| <a name="fixed64" /> fixed64 | Always eight bytes. More efficient than uint64 if values are often greater than 2^56. | uint64 | long | int/long |
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| <a name="sfixed32" /> sfixed32 | Always four bytes. | int32 | int | int |
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| <a name="sfixed64" /> sfixed64 | Always eight bytes. | int64 | long | int/long |
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| <a name="bool" /> bool | | bool | boolean | boolean |
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| <a name="string" /> string | A string must always contain UTF-8 encoded or 7-bit ASCII text. | string | String | str/unicode |
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| <a name="bytes" /> bytes | May contain any arbitrary sequence of bytes. | string | ByteString | str |
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