orderedcodec

package
v0.4.0 Latest Latest
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 Go to latest Published: May 5, 2022 License: Apache-2.0 Imports: 5 Imported by: 0

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Constants

This section is empty.

Variables

This section is empty.

Functions

This section is empty.

Types

type DecodedItem 

type DecodedItem struct {
	Value                    interface{}
	ValueType                ValueType   // int,uint,uint64,...,float
	SectionType              SectionType //belongs to which section
	OffsetInUndecodedKey     int         //the position in undecoded bytes
	RawBytes                 []byte      //the byte that holds the item
	BytesCountInUndecodedKey int         //the count of bytes in undecoded bytes
	ID                       uint32      //the attribute id
}

func NewDecodeItem 

func NewDecodeItem(v interface{}, vt ValueType, st SectionType, oiu int, bciu int) *DecodedItem

func (*DecodedItem) GetBytes 

func (di *DecodedItem) GetBytes() ([]byte, error)

func (*DecodedItem) GetBytesCountInUndecodedKey 

func (di *DecodedItem) GetBytesCountInUndecodedKey() int

func (*DecodedItem) GetDate 

func (di *DecodedItem) GetDate() (types.Date, error)

func (*DecodedItem) GetDatetime 

func (di *DecodedItem) GetDatetime() (types.Datetime, error)

func (*DecodedItem) GetFloat32 

func (di *DecodedItem) GetFloat32() (float32, error)

func (*DecodedItem) GetFloat64 

func (di *DecodedItem) GetFloat64() (float64, error)

func (*DecodedItem) GetID 

func (di *DecodedItem) GetID() uint32

func (*DecodedItem) GetInt16 

func (di *DecodedItem) GetInt16() (int16, error)

func (*DecodedItem) GetInt32 

func (di *DecodedItem) GetInt32() (int32, error)

func (*DecodedItem) GetInt64 

func (di *DecodedItem) GetInt64() (int64, error)

func (*DecodedItem) GetInt8 

func (di *DecodedItem) GetInt8() (int8, error)

func (*DecodedItem) GetOffsetInUndecodedKey 

func (di *DecodedItem) GetOffsetInUndecodedKey() int

func (*DecodedItem) GetSectionType 

func (di *DecodedItem) GetSectionType() SectionType

func (*DecodedItem) GetUint16 

func (di *DecodedItem) GetUint16() (uint16, error)

func (*DecodedItem) GetUint32 

func (di *DecodedItem) GetUint32() (uint32, error)

func (*DecodedItem) GetUint64 

func (di *DecodedItem) GetUint64() (uint64, error)

func (*DecodedItem) GetUint8 

func (di *DecodedItem) GetUint8() (uint8, error)

func (*DecodedItem) GetValue 

func (di *DecodedItem) GetValue() interface{}

func (*DecodedItem) GetValueType 

func (di *DecodedItem) GetValueType() ValueType

func (*DecodedItem) IsSectionType 

func (di *DecodedItem) IsSectionType(st SectionType) bool

func (*DecodedItem) IsValueType 

func (di *DecodedItem) IsValueType(vt ValueType) bool

func (*DecodedItem) SetBytesCountInUndecodedKey 

func (di *DecodedItem) SetBytesCountInUndecodedKey(b int)

func (*DecodedItem) SetID 

func (di *DecodedItem) SetID(id uint32)

func (*DecodedItem) SetOffsetInUndecodedKey 

func (di *DecodedItem) SetOffsetInUndecodedKey(o int)

func (*DecodedItem) SetSectionType 

func (di *DecodedItem) SetSectionType(st SectionType)

func (*DecodedItem) SetValue 

func (di *DecodedItem) SetValue(v interface{})

func (*DecodedItem) SetValueType 

func (di *DecodedItem) SetValueType(vt ValueType)

type EncodedItem 

type EncodedItem struct {
	// contains filtered or unexported fields
}

type OrderedDecoder 

type OrderedDecoder struct {
}

func NewOrderedDecoder 

func NewOrderedDecoder() *OrderedDecoder

func (*OrderedDecoder) DecodeBytes 

func (od *OrderedDecoder) DecodeBytes(data []byte) ([]byte, *DecodedItem, error)

DecodeBytes decodes the bytes from the encoded bytes.

func (*OrderedDecoder) DecodeFloat 

func (od *OrderedDecoder) DecodeFloat(data []byte) ([]byte, *DecodedItem, error)

func (*OrderedDecoder) DecodeInt64 

func (od *OrderedDecoder) DecodeInt64(data []byte) ([]byte, *DecodedItem, error)

DecodeInt64 decodes the int64 with the variable length encoding and returns the bytes after the int64

func (*OrderedDecoder) DecodeKey 

func (od *OrderedDecoder) DecodeKey(data []byte, valueType ValueType) ([]byte, *DecodedItem, error)

DecodeKey decodes

func (*OrderedDecoder) DecodeString 

func (od *OrderedDecoder) DecodeString(data []byte) ([]byte, *DecodedItem, error)

DecodeString decodes string from the encoded bytes

func (*OrderedDecoder) DecodeUint64 

func (od *OrderedDecoder) DecodeUint64(data []byte) ([]byte, *DecodedItem, error)

DecodeUint64 decodes the uint64 with the variable length encoding and returns the bytes after the uint64

func (*OrderedDecoder) DecodeUint64ForFloat 

func (od *OrderedDecoder) DecodeUint64ForFloat(data []byte) ([]byte, *DecodedItem, error)

func (*OrderedDecoder) IsNull 

func (od *OrderedDecoder) IsNull(data []byte) ([]byte, *DecodedItem, error)

isNll decodes the NULL and returns the bytes after the null.

type OrderedEncoder 

type OrderedEncoder struct {
}

func NewOrderedEncoder 

func NewOrderedEncoder() *OrderedEncoder

func (*OrderedEncoder) EncodeBool 

func (oe *OrderedEncoder) EncodeBool(data []byte, value bool) ([]byte, *EncodedItem)

func (*OrderedEncoder) EncodeBytes 

func (oe *OrderedEncoder) EncodeBytes(data []byte, value []byte) ([]byte, *EncodedItem)

EncodeBytes encodes the bytes with escaping and appends them to the buffer.

func (*OrderedEncoder) EncodeDate 

func (oe *OrderedEncoder) EncodeDate(data []byte, value types.Date) ([]byte, *EncodedItem)

func (*OrderedEncoder) EncodeDatetime 

func (oe *OrderedEncoder) EncodeDatetime(data []byte, value types.Datetime) ([]byte, *EncodedItem)

func (*OrderedEncoder) EncodeFloat32 

func (oe *OrderedEncoder) EncodeFloat32(data []byte, value float32) ([]byte, *EncodedItem)

func (*OrderedEncoder) EncodeFloat64 

func (oe *OrderedEncoder) EncodeFloat64(data []byte, value float64) ([]byte, *EncodedItem)

func (*OrderedEncoder) EncodeInt16 

func (oe *OrderedEncoder) EncodeInt16(data []byte, value int16) ([]byte, *EncodedItem)

func (*OrderedEncoder) EncodeInt32 

func (oe *OrderedEncoder) EncodeInt32(data []byte, value int32) ([]byte, *EncodedItem)

func (*OrderedEncoder) EncodeInt64 

func (oe *OrderedEncoder) EncodeInt64(data []byte, value int64) ([]byte, *EncodedItem)

func (*OrderedEncoder) EncodeInt8 

func (oe *OrderedEncoder) EncodeInt8(data []byte, value int8) ([]byte, *EncodedItem)

func (*OrderedEncoder) EncodeKey 

func (oe *OrderedEncoder) EncodeKey(data []byte, value interface{}) ([]byte, *EncodedItem)

EncodeKey encodes the value into the ordered bytes

func (*OrderedEncoder) EncodeNull 

func (oe *OrderedEncoder) EncodeNull(data []byte) ([]byte, *EncodedItem)

EncodeNull encodes the NULL and appends the result to the buffer

func (*OrderedEncoder) EncodeString 

func (oe *OrderedEncoder) EncodeString(data []byte, value string) ([]byte, *EncodedItem)

EncodeString encods the string into bytes with escaping and appends them to the buffer.

func (*OrderedEncoder) EncodeUint16 

func (oe *OrderedEncoder) EncodeUint16(data []byte, value uint16) ([]byte, *EncodedItem)

func (*OrderedEncoder) EncodeUint32 

func (oe *OrderedEncoder) EncodeUint32(data []byte, value uint32) ([]byte, *EncodedItem)

func (*OrderedEncoder) EncodeUint64 

func (oe *OrderedEncoder) EncodeUint64(data []byte, value uint64) ([]byte, *EncodedItem)

EncodeUint64 encodes the uint64 into ordered bytes with uvarint encoding and appends them to the buffer. The variable length is encoded into the first byte.

func (*OrderedEncoder) EncodeUint64ForFloat 

func (oe *OrderedEncoder) EncodeUint64ForFloat(data []byte, value uint64) ([]byte, *EncodedItem)

func (*OrderedEncoder) EncodeUint8 

func (oe *OrderedEncoder) EncodeUint8(data []byte, value uint8) ([]byte, *EncodedItem)

type SectionType 

type SectionType int
const (
	SECTION_TYPE_TABLEID           SectionType = 0x0
	SECTION_TYPE_INDEXID           SectionType = 0x1
	SECTION_TYPE_PRIMARYKEYFIELD   SectionType = 0x2
	SECTION_TYPE_SECONDARYKEYFIELD SectionType = 0x3
	SECTION_TYPE_IMPLICITFIELD     SectionType = 0x4
	SECTION_TYPE_COMPOSITEFIELD    SectionType = 0x5
	SECTION_TYPE_STOREFIELD        SectionType = 0x6
	SECTION_TYPE_COLUMNGROUP       SectionType = 0x7
	SECTION_TYPE_DATABASEID        SectionType = 0x8
	SECTION_TYPE_VALUE             SectionType = 0x9
)

type ValueType 

type ValueType int
const (
	VALUE_TYPE_UNKOWN   ValueType = 0x0
	VALUE_TYPE_NULL     ValueType = 0x1
	VALUE_TYPE_BOOL     ValueType = 0x2
	VALUE_TYPE_UINT64   ValueType = 0x3
	VALUE_TYPE_BYTES    ValueType = 0x4
	VALUE_TYPE_STRING   ValueType = 0x5
	VALUE_TYPE_INT8     ValueType = 0x6
	VALUE_TYPE_INT16    ValueType = 0x7
	VALUE_TYPE_INT32    ValueType = 0x8
	VALUE_TYPE_INT64    ValueType = 0x9
	VALUE_TYPE_UINT8    ValueType = 0xa
	VALUE_TYPE_UINT16   ValueType = 0xb
	VALUE_TYPE_UINT32   ValueType = 0xc
	VALUE_TYPE_FLOAT32  ValueType = 0xd
	VALUE_TYPE_FLOAT64  ValueType = 0xe
	VALUE_TYPE_DATE     ValueType = 0xf
	VALUE_TYPE_DATETIME ValueType = 0x10
)

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