Package io.trino.parquet.reader

Record Class ParquetReaderColumn

java.lang.Object

java.lang.Record

io.trino.parquet.reader.ParquetReaderColumn

Record Components:

type - Column type

field - Field description. Empty optional will result in column populated with NULL

isRowIndexColumn - Whether column should be populated with the indices of its rows

public record ParquetReaderColumn(Type type, Optional<Field> field, boolean isRowIndexColumn)
extends Record

Constructor Summary

Constructors

Constructor	Description
ParquetReaderColumn(Type type, Optional<Field> field, boolean isRowIndexColumn)	Creates an instance of a ParquetReaderColumn record class.

Method Summary

Modifier and Type	Method	Description
final boolean	equals(Object o)	Indicates whether some other object is "equal to" this one.
Optional<Field>	field()	Returns the value of the field record component.
static List<Field>	getParquetReaderFields(List<ParquetReaderColumn> parquetReaderColumns)
final int	hashCode()	Returns a hash code value for this object.
boolean	isRowIndexColumn()	Returns the value of the isRowIndexColumn record component.
final String	toString()	Returns a string representation of this record class.
Type	type()	Returns the value of the type record component.

Methods inherited from class java.lang.Object

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

Constructor Details

ParquetReaderColumn

public ParquetReaderColumn(Type type,
 Optional<Field> field,
 boolean isRowIndexColumn)

Creates an instance of a ParquetReaderColumn record class.

Parameters:

type - the value for the type record component

field - the value for the field record component

isRowIndexColumn - the value for the isRowIndexColumn record component

Method Details

getParquetReaderFields

public static List<Field> getParquetReaderFields(List<ParquetReaderColumn> parquetReaderColumns)

toString

public final String toString()

Returns a string representation of this record class. The representation contains the name of the class, followed by the name and value of each of the record components.

Specified by:

toString in class Record

Returns:

a string representation of this object

hashCode

public final int hashCode()

Returns a hash code value for this object. The value is derived from the hash code of each of the record components.

Specified by:

hashCode in class Record

Returns:

a hash code value for this object

equals

public final boolean equals(Object o)

Indicates whether some other object is "equal to" this one. The objects are equal if the other object is of the same class and if all the record components are equal. Reference components are compared with Objects::equals(Object,Object); primitive components are compared with '=='.

Specified by:

equals in class Record

Parameters:

o - the object with which to compare

Returns:

true if this object is the same as the o argument; false otherwise.

type

public Type type()

Returns the value of the type record component.

Returns:

the value of the type record component

field

public Optional<Field> field()

Returns the value of the field record component.

Returns:

the value of the field record component

isRowIndexColumn

public boolean isRowIndexColumn()

Returns the value of the isRowIndexColumn record component.

Returns:

the value of the isRowIndexColumn record component