com.northconcepts.datapipeline.core

Interface Session

All Known Implementing Classes:

ArrayValue, Field, Node, Record, Session.SessionImpl, SingleValue, ValueNode

public interface Session

Session is the base type for objects that can contain temporary, non-persistent data in Data Pipeline. Developers can use Session indirectly via Record, Field, and other Node subclasses to attach transient values to data flowing through the pipeline. Values stored in session properties are ignored by Data Pipeline's readers, writers, and operators.

Note: Session is created as an interface (with one real implementation -- Session.SessionImpl) due to Java's lack of multiple inheritance. It is not intended to be implemented by developers.

See Also:

Node, Record, Field, ArrayValue, SingleValue, ValueNode

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	Session.SessionImpl

Method Summary

Modifier and Type	Method and Description
<T> boolean	containsSessionProperty(Class<T> type)
<T> boolean	containsSessionProperty(Class<T> type, String name)
boolean	containsSessionProperty(String name)
void	copySessionPropertiesFrom(Session session)
<T> T	getSessionProperty(Class<T> type)
<T> T	getSessionProperty(Class<T> type, String name)
<T> T	getSessionProperty(String name)
Set<String>	keySet()
<T> void	setSessionProperty(Class<T> type, Object value)
<T> void	setSessionProperty(Class<T> type, String name, Object value)
void	setSessionProperty(String name, Object value)

Method Detail

keySet

Set<String> keySet()

containsSessionProperty

<T> boolean containsSessionProperty(Class<T> type,
                                    String name)

containsSessionProperty

<T> boolean containsSessionProperty(Class<T> type)

containsSessionProperty

boolean containsSessionProperty(String name)

getSessionProperty

<T> T getSessionProperty(Class<T> type)

getSessionProperty

<T> T getSessionProperty(Class<T> type,
                         String name)

getSessionProperty

<T> T getSessionProperty(String name)

setSessionProperty

<T> void setSessionProperty(Class<T> type,
                            Object value)

setSessionProperty

<T> void setSessionProperty(Class<T> type,
                            String name,
                            Object value)

setSessionProperty

void setSessionProperty(String name,
                        Object value)

copySessionPropertiesFrom

void copySessionPropertiesFrom(Session session)