Package io.trino.connector.system

Record Class SystemColumnHandle

java.lang.Object

java.lang.Record

io.trino.connector.system.SystemColumnHandle

All Implemented Interfaces:

ColumnHandle

public record SystemColumnHandle(String columnName)
extends Record
implements ColumnHandle

Constructor Summary

Constructors

Constructor	Description
SystemColumnHandle(String columnName)	Creates an instance of a SystemColumnHandle record class.

Method Summary

Modifier and Type	Method	Description
String	columnName()	Returns the value of the columnName record component.
final boolean	equals(Object o)	Indicates whether some other object is "equal to" this one.
long	getRetainedSizeInBytes()
final int	hashCode()	Returns a hash code value for this object.
String	toString()	Returns a string representation of this record class.
static Map<String,ColumnHandle>	toSystemColumnHandles(ConnectorTableMetadata tableMetadata)

Methods inherited from class java.lang.Object

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

Constructor Details

SystemColumnHandle

public SystemColumnHandle(String columnName)

Creates an instance of a SystemColumnHandle record class.

Parameters:

columnName - the value for the columnName record component

Method Details

toString

public 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

getRetainedSizeInBytes

public long getRetainedSizeInBytes()

toSystemColumnHandles

public static Map<String,ColumnHandle> toSystemColumnHandles(ConnectorTableMetadata tableMetadata)

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 interface ColumnHandle

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. All components in this record class are compared with Objects::equals(Object,Object).

Specified by:

equals in interface ColumnHandle

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.

columnName

public String columnName()

Returns the value of the columnName record component.

Returns:

the value of the columnName record component