Package org.apache.ignite.table

Class TupleHelper

java.lang.Object

org.apache.ignite.table.TupleHelper

public final class TupleHelper
extends Object

Utility class to provide direct access to internals of TupleImpl.

Method Summary

Modifier and Type	Method	Description
static <T> T	valueOrDefault(Tuple tuple, String normalizedName, T defaultValue)	Returns value from a given tuple which corresponds to a specified column.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

valueOrDefault

@Nullable
public static <T> T valueOrDefault(Tuple tuple,
 String normalizedName,
 @Nullable
 T defaultValue)

Returns value from a given tuple which corresponds to a specified column.

Given name is expected to be normalized, thus it's up to caller to invoke IgniteNameUtils.parseIdentifier(String) prior passing the name to this method.

Type Parameters:

T - A type of the returned value.

Parameters:

tuple - A tuple to get value from.

normalizedName - A column name that is considered to be normalized (e.g result of IgniteNameUtils.parseIdentifier(String)).

defaultValue - A value to return in case tuple doesn't have column with given name.

Returns:

A value from a tuple.