org.apache.paimon.types

类 RowType

java.lang.Object

org.apache.paimon.types.DataType

org.apache.paimon.types.RowType

所有已实现的接口:

Serializable

@Public
public final class RowType
extends DataType

Data type of a sequence of fields. A field consists of a field name, field type, and an optional description. The most specific type of a row of a table is a row type. In this case, each column of the row corresponds to the field of the row type that has the same ordinal position as the column. Compared to the SQL standard, an optional field description simplifies the handling with complex structures.

从以下版本开始:

0.4.0

另请参阅:

序列化表格

嵌套类概要

嵌套类

限定符和类型	类和说明
static class	RowType.Builder Builder of RowType.

字段概要

字段

限定符和类型	字段和说明
static String	FORMAT

构造器概要

构造器

构造器和说明
RowType(boolean isNullable, List<DataField> fields)
RowType(List<DataField> fields)

方法概要

限定符和类型	方法和说明
<R> R	accept(DataTypeVisitor<R> visitor)
RowType	appendDataField(String name, DataType type)
String	asSQLString() Returns a string that summarizes this type as SQL standard string for printing to a console.
static RowType.Builder	builder()
static RowType.Builder	builder(boolean isNullable, AtomicInteger fieldId)
void	collectFieldIds(Set<Integer> fieldIds)
boolean	containsField(String fieldName)
DataType	copy(boolean isNullable) Returns a deep copy of this type with possibly different nullability.
static int	currentHighestFieldId(List<DataField> fields)
boolean	equals(Object o)
InternalRow.FieldGetter[]	fieldGetters()
DataField	getField(String fieldName)
int	getFieldCount()
int	getFieldIndex(String fieldName)
List<String>	getFieldNames()
List<DataField>	getFields()
List<DataType>	getFieldTypes()
DataType	getTypeAt(int i)
int	hashCode()
boolean	notContainsField(String fieldName)
static RowType	of(DataType... types)
static RowType	of(DataType[] types, String[] names)
RowType	project(int[] mapping)
RowType	project(List<String> names)
void	serializeJson(org.apache.paimon.shade.jackson2.com.fasterxml.jackson.core.JsonGenerator generator)

从类继承的方法 org.apache.paimon.types.DataType

copy, equalsIgnoreNullable, getTypeRoot, is, is, isAnyOf, isAnyOf, isNullable, notNull, nullable, toString, withNullability

从类继承的方法 java.lang.Object

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

字段详细资料

FORMAT

public static final String FORMAT

另请参阅:

常量字段值

构造器详细资料

RowType

public RowType(boolean isNullable,
               List<DataField> fields)

RowType

public RowType(List<DataField> fields)

方法详细资料

getFields

public List<DataField> getFields()

getFieldNames

public List<String> getFieldNames()

getFieldTypes

public List<DataType> getFieldTypes()

getTypeAt

public DataType getTypeAt(int i)

getFieldCount

public int getFieldCount()

getFieldIndex

public int getFieldIndex(String fieldName)

containsField

public boolean containsField(String fieldName)

notContainsField

public boolean notContainsField(String fieldName)

getField

public DataField getField(String fieldName)

copy

public DataType copy(boolean isNullable)

从类复制的说明: DataType

Returns a deep copy of this type with possibly different nullability.

指定者:

copy 在类中 DataType

参数:

isNullable - the intended nullability of the copied type

返回:

a deep copy

asSQLString

public String asSQLString()

从类复制的说明: DataType

Returns a string that summarizes this type as SQL standard string for printing to a console. An implementation might shorten long names or skips very specific properties.

指定者:

asSQLString 在类中 DataType

serializeJson

public void serializeJson(org.apache.paimon.shade.jackson2.com.fasterxml.jackson.core.JsonGenerator generator)
                   throws IOException

覆盖:

serializeJson 在类中 DataType

抛出:

IOException

equals

public boolean equals(Object o)

覆盖:

equals 在类中 DataType

hashCode

public int hashCode()

覆盖:

hashCode 在类中 DataType

accept

public <R> R accept(DataTypeVisitor<R> visitor)

指定者:

accept 在类中 DataType

collectFieldIds

public void collectFieldIds(Set<Integer> fieldIds)

覆盖:

collectFieldIds 在类中 DataType

appendDataField

public RowType appendDataField(String name,
                               DataType type)

project

public RowType project(int[] mapping)

project

public RowType project(List<String> names)

of

public static RowType of(DataType... types)

of

public static RowType of(DataType[] types,
                         String[] names)

currentHighestFieldId

public static int currentHighestFieldId(List<DataField> fields)

builder

public static RowType.Builder builder()

builder

public static RowType.Builder builder(boolean isNullable,
                                      AtomicInteger fieldId)

fieldGetters

public InternalRow.FieldGetter[] fieldGetters()