io.greptime.models

Class TableSchema.Builder

java.lang.Object

io.greptime.models.TableSchema.Builder

Enclosing class:

TableSchema

public static class TableSchema.Builder
extends Object

Constructor Summary

Constructors

Constructor and Description
Builder(String tableName)

Method Summary

Modifier and Type	Method and Description
TableSchema.Builder	addColumn(String name, SemanticType semanticType, DataType dataType) Add column schema.
TableSchema.Builder	addColumn(String name, SemanticType semanticType, DataType dataType, DataType.DecimalTypeExtension decimalTypeExtension) Add column schema.
TableSchema.Builder	addField(String name, DataType dataType) Add field schema.
TableSchema.Builder	addTag(String name, DataType dataType) Add tag schema.
TableSchema.Builder	addTimestamp(String name, DataType dataType) Add timestamp schema.
TableSchema	build() Build the table schema.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Builder

public Builder(String tableName)

Method Detail

addTag

public TableSchema.Builder addTag(String name,
                                  DataType dataType)

Add tag schema.

It is strongly recommended to use snake case naming convention and avoid using camel case. This is because GreptimeDB treats column names as case-insensitive, which can cause confusion when querying with camel case.

Parameters:

name - the name of this tag

dataType - the data type of this tag

Returns:

this builder

addTimestamp

public TableSchema.Builder addTimestamp(String name,
                                        DataType dataType)

Add timestamp schema.

It is strongly recommended to use snake case naming convention and avoid using camel case. This is because GreptimeDB treats column names as case-insensitive, which can cause confusion when querying with camel case.

Parameters:

name - the name of this timestamp

dataType - the data type of this timestamp

Returns:

this builder

addField

public TableSchema.Builder addField(String name,
                                    DataType dataType)

Add field schema.

It is strongly recommended to use snake case naming convention and avoid using camel case. This is because GreptimeDB treats column names as case-insensitive, which can cause confusion when querying with camel case.

Parameters:

name - the name of this field

dataType - the data type of this field

Returns:

this builder

addColumn

public TableSchema.Builder addColumn(String name,
                                     SemanticType semanticType,
                                     DataType dataType)

Add column schema.

It is strongly recommended to use snake case naming convention and avoid using camel case. This is because GreptimeDB treats column names as case-insensitive, which can cause confusion when querying with camel case.

Parameters:

name - the name of this column

semanticType - the semantic type of this column (`Tag`, `Field` or `Timestamp`)

dataType - the data type of this column

Returns:

this builder

addColumn

public TableSchema.Builder addColumn(String name,
                                     SemanticType semanticType,
                                     DataType dataType,
                                     DataType.DecimalTypeExtension decimalTypeExtension)

Add column schema.

It is strongly recommended to use snake case naming convention and avoid using camel case. This is because GreptimeDB treats column names as case-insensitive, which can cause confusion when querying with camel case.

Parameters:

name - the name of this column

semanticType - the semantic type of this column (`Tag`, `Field` or `Timestamp`)

dataType - the data type of this column

decimalTypeExtension - the decimal type extension of this column(only for `DataType.Decimal128`)

Returns:

this builder

build

public TableSchema build()

Build the table schema.

Returns:

the table schema