public static final class Field.BuilderMethods
build()
public Field build()Creates a Field object.
| Returns | |
|---|---|
| Type | Description |
Field |
|
setCollation(String collation)
public Field.Builder setCollation(String collation)Optional. Field collation can be set only when the type of field is STRING. The following values are supported:
* 'und:ci': undetermined locale, case insensitive. * '': empty string. Default to case-sensitive behavior. (-- A wrapper is used here because it is possible to set the value to the empty string. --)
| Parameter | |
|---|---|
| Name | Description |
collation |
String |
| Returns | |
|---|---|
| Type | Description |
Field.Builder |
|
setDefaultValueExpression(String defaultValueExpression)
public Field.Builder setDefaultValueExpression(String defaultValueExpression)DefaultValueExpression is used to specify the default value of a field using a SQL expression. It can only be set for top level fields (columns).
You can use struct or array expression to specify default value for the entire struct or array. The valid SQL expressions are:
Literals for all data types, including STRUCT and ARRAY. The following functions:
- CURRENT_TIMESTAMP
- CURRENT_TIME
- CURRENT_DATE
- CURRENT_DATETIME
- GENERATE_UUID
- RAND
- SESSION_USER
ST_GEOGPOINT
Struct or array composed with the above allowed functions, for example: "[CURRENT_DATE(), DATE '2020-01-01']"
| Parameter | |
|---|---|
| Name | Description |
defaultValueExpression |
String |
| Returns | |
|---|---|
| Type | Description |
Field.Builder |
|
setDescription(String description)
public Field.Builder setDescription(String description)Sets the field description. The maximum length is 16K characters.
| Parameter | |
|---|---|
| Name | Description |
description |
String |
| Returns | |
|---|---|
| Type | Description |
Field.Builder |
|
setMaxLength(Long maxLength)
public Field.Builder setMaxLength(Long maxLength)Sets the maximum length of the field for STRING or BYTES type.
It is invalid to set value for types other than STRING or BYTES.
For STRING type, this represents the maximum UTF-8 length of strings allowed in the field. For BYTES type, this represents the maximum number of bytes in the field.
| Parameter | |
|---|---|
| Name | Description |
maxLength |
Long |
| Returns | |
|---|---|
| Type | Description |
Field.Builder |
|
setMode(Field.Mode mode)
public Field.Builder setMode(Field.Mode mode)Sets the mode of the field. When not specified Mode#NULLABLE is used.
| Parameter | |
|---|---|
| Name | Description |
mode |
Field.Mode |
| Returns | |
|---|---|
| Type | Description |
Field.Builder |
|
setName(String name)
public Field.Builder setName(String name)Sets the field name. The name must contain only letters (a-z, A-Z), numbers (0-9), or underscores (_), and must start with a letter or underscore. The maximum length is 128 characters.
| Parameter | |
|---|---|
| Name | Description |
name |
String |
| Returns | |
|---|---|
| Type | Description |
Field.Builder |
|
setPolicyTags(PolicyTags policyTags)
public Field.Builder setPolicyTags(PolicyTags policyTags)Sets the policy tags for the field.
| Parameter | |
|---|---|
| Name | Description |
policyTags |
PolicyTags |
| Returns | |
|---|---|
| Type | Description |
Field.Builder |
|
setPrecision(Long precision)
public Field.Builder setPrecision(Long precision)Precision can be used to constrain the maximum number of total digits allowed for NUMERIC or BIGNUMERIC types. It is invalid to set values for Precision for types other than // NUMERIC or BIGNUMERIC. For NUMERIC type, acceptable values for Precision must be: 1 ≤ (Precision - Scale) ≤ 29. Values for Scale must be: 0 ≤ Scale ≤ 9. For BIGNUMERIC type, acceptable values for Precision must be: 1 ≤ (Precision - Scale) ≤ 38. Values for Scale must be: 0 ≤ Scale ≤ 38.
| Parameter | |
|---|---|
| Name | |