org.apache.calcite.linq4j

Class MemoryFactory<E>

java.lang.Object

org.apache.calcite.linq4j.MemoryFactory<E>

Type Parameters:

E - Type of the base Object

public class MemoryFactory<E>
extends Object

Contains the State and changes internally. with the create() method one can get immutable Snapshots.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	MemoryFactory.Memory<E> Contents of a "memory segment", used for implementing the MATCH_RECOGNIZE operator.

Field Summary

Fields

Modifier and Type	Field and Description
private int	future
private int	history
(package private) ModularInteger	offset
private Object[]	values

Constructor Summary

Constructors

Constructor and Description
MemoryFactory(int history, int future)

Method Summary

Modifier and Type	Method and Description
void	add(E current)
MemoryFactory.Memory<E>	create()

Methods inherited from class java.lang.Object

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

Field Detail

history

private final int history

future

private final int future

offset

ModularInteger offset

values

private Object[] values

Constructor Detail

MemoryFactory

public MemoryFactory(int history,
                     int future)

Method Detail

add

public void add(E current)

create

public MemoryFactory.Memory<E> create()