com.google.cloud.bigquery

Class Field

java.lang.Object

com.google.cloud.bigquery.Field

All Implemented Interfaces:

Serializable

public final class Field
extends Object
implements Serializable

Google BigQuery Table schema field. A table field has a name, a type, a mode and possibly a description.

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Field.Builder
static class	Field.Mode Mode for a BigQuery Table field.

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object obj)
String	getCollation()
String	getDefaultValueExpression() Return the default value of the field.
String	getDescription() Returns the field description.
Long	getMaxLength() Returns the maximum length of the field for STRING or BYTES type.
Field.Mode	getMode() Returns the field mode.
String	getName() Returns the field name.
PolicyTags	getPolicyTags() Returns the policy tags for the field.
Long	getPrecision() Returns the maximum number of total digits allowed for NUMERIC or BIGNUMERIC types.
Long	getScale() Returns the maximum number of digits set in the fractional part of a NUMERIC or BIGNUMERIC type.
FieldList	getSubFields() Returns the list of sub-fields if getType() is a LegacySQLTypeName.RECORD.
LegacySQLTypeName	getType() Returns the field type.
int	hashCode()
static Field.Builder	newBuilder(String name, LegacySQLTypeName type, Field... subFields) Returns a builder for a Field object with given name and type.
static Field.Builder	newBuilder(String name, LegacySQLTypeName type, FieldList subFields) Returns a builder for a Field object with given name and type.
static Field.Builder	newBuilder(String name, StandardSQLTypeName type, Field... subFields) Returns a builder for a Field object with given name and type.
static Field.Builder	newBuilder(String name, StandardSQLTypeName type, FieldList subFields) Returns a builder for a Field object with given name and type.
static Field	of(String name, LegacySQLTypeName type, Field... subFields) Returns a Field object with given name and type.
static Field	of(String name, LegacySQLTypeName type, FieldList subFields) Returns a Field object with given name and type.
static Field	of(String name, StandardSQLTypeName type, Field... subFields) Returns a Field object with given name and type.
static Field	of(String name, StandardSQLTypeName type, FieldList subFields) Returns a Field object with given name and type.
Field.Builder	toBuilder() Returns a builder for the Field object.
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Method Detail

getName

public String getName()

Returns the field name.

getType

public LegacySQLTypeName getType()

Returns the field type.

See Also:

Data Types

getMode

public Field.Mode getMode()

Returns the field mode. By default Field.Mode.NULLABLE is used.

getDescription

public String getDescription()

Returns the field description.

getPolicyTags

public PolicyTags getPolicyTags()

Returns the policy tags for the field.

getMaxLength

public Long getMaxLength()

Returns the maximum length of the field for STRING or BYTES type.

getScale

public Long getScale()

Returns the maximum number of digits set in the fractional part of a NUMERIC or BIGNUMERIC type.

getPrecision

public Long getPrecision()

Returns the maximum number of total digits allowed for NUMERIC or BIGNUMERIC types.

getDefaultValueExpression

public String getDefaultValueExpression()

Return the default value of the field.

getCollation

public String getCollation()

getSubFields

public FieldList getSubFields()

Returns the list of sub-fields if getType() is a LegacySQLTypeName.RECORD. Returns null otherwise.

toBuilder

public Field.Builder toBuilder()

Returns a builder for the Field object.

toString

public String toString()

Overrides:

toString in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

of

public static Field of(String name,
                       LegacySQLTypeName type,
                       Field... subFields)

Returns a Field object with given name and type.

of

public static Field of(String name,
                       StandardSQLTypeName type,
                       Field... subFields)

Returns a Field object with given name and type.

of

public static Field of(String name,
                       LegacySQLTypeName type,
                       FieldList subFields)

Returns a Field object with given name and type.

of

public static Field of(String name,
                       StandardSQLTypeName type,
                       FieldList subFields)

Returns a Field object with given name and type.

newBuilder

public static Field.Builder newBuilder(String name,
                                       LegacySQLTypeName type,
                                       Field... subFields)

Returns a builder for a Field object with given name and type.

newBuilder

public static Field.Builder newBuilder(String name,
                                       StandardSQLTypeName type,
                                       Field... subFields)

Returns a builder for a Field object with given name and type.

newBuilder

public static Field.Builder newBuilder(String name,
                                       LegacySQLTypeName type,
                                       FieldList subFields)

Returns a builder for a Field object with given name and type.

newBuilder

public static Field.Builder newBuilder(String name,
                                       StandardSQLTypeName type,
                                       FieldList subFields)

Returns a builder for a Field object with given name and type.