Reference documentation and code samples for the Google Cloud Data Catalog V1 Client class ColumnSchema.
A column within a schema. Columns can be nested inside other columns.
Generated from protobuf message google.cloud.datacatalog.v1.ColumnSchema
Methods
__construct
Constructor.
| Parameters | |
|---|---|
| Name | Description |
data |
array
Optional. Data for populating the Message object. |
↳ column |
string
Required. Name of the column. Must be a UTF-8 string without dots (.). The maximum size is 64 bytes. |
↳ type |
string
Required. Type of the column. Must be a UTF-8 string with the maximum size of 128 bytes. |
↳ description |
string
Optional. Description of the column. Default value is an empty string. The description must be a UTF-8 string with the maximum size of 2000 bytes. |
↳ mode |
string
Optional. A column's mode indicates whether values in this column are required, nullable, or repeated. Only |
↳ subcolumns |
array<Google\Cloud\DataCatalog\V1\ColumnSchema>
Optional. Schema of sub-columns. A column can have zero or more sub-columns. |
getColumn
Required. Name of the column.
Must be a UTF-8 string without dots (.). The maximum size is 64 bytes.
| Returns | |
|---|---|
| Type | Description |
string | |
setColumn
Required. Name of the column.
Must be a UTF-8 string without dots (.). The maximum size is 64 bytes.
| Parameter | |
|---|---|
| Name | Description |
var |
string
|
| Returns | |
|---|---|
| Type | Description |
$this | |
getType
Required. Type of the column.
Must be a UTF-8 string with the maximum size of 128 bytes.
| Returns | |
|---|---|
| Type | Description |
string | |
setType
Required. Type of the column.
Must be a UTF-8 string with the maximum size of 128 bytes.
| Parameter | |
|---|---|
| Name | Description |
var |
string
|
| Returns | |
|---|---|
| Type | Description |
$this | |
getDescription
Optional. Description of the column. Default value is an empty string.
The description must be a UTF-8 string with the maximum size of 2000 bytes.
| Returns | |
|---|---|
| Type | Description |
string | |
setDescription
Optional. Description of the column. Default value is an empty string.
The description must be a UTF-8 string with the maximum size of 2000 bytes.
| Parameter | |
|---|---|
| Name | Description |
var |
string
|
| Returns | |
|---|---|
| Type | Description |
$this | |
getMode
Optional. A column's mode indicates whether values in this column are required, nullable, or repeated.
Only NULLABLE, REQUIRED, and REPEATED values are supported.
Default mode is NULLABLE.
| Returns | |
|---|---|
| Type | Description |
string | |
setMode
Optional. A column's mode indicates whether values in this column are required, nullable, or repeated.
Only NULLABLE, REQUIRED, and REPEATED values are supported.
Default mode is NULLABLE.
| Parameter | |
|---|---|
| Name | Description |
var |
string
|
| Returns | |
|---|---|
| Type | Description |
$this | |
getSubcolumns
Optional. Schema of sub-columns. A column can have zero or more sub-columns.
| Returns | |
|---|---|
| Type | Description |
Google\Protobuf\Internal\RepeatedField | |
setSubcolumns
Optional. Schema of sub-columns. A column can have zero or more sub-columns.
| Parameter | |
|---|---|
| Name | Description |
var |
array<Google\Cloud\DataCatalog\V1\ColumnSchema>
|
| Returns | |
|---|---|
| Type | Description |
$this | |