com.espertech.esper.client

Interface EPAdministratorIsolated

All Known Subinterfaces:

EPAdministratorIsolatedSPI

All Known Implementing Classes:

EPAdministratorIsolatedImpl

public interface EPAdministratorIsolated

Administrative interfae

Method Summary

Modifier and Type	Method and Description
void	addStatement(EPStatement statement) Add a statement to the isolated service.
void	addStatement(EPStatement[] statements) Add statements to the isolated service.
EPStatement	createEPL(String eplStatement, String statementName, Object userObject) Create and starts an EPL statement.
String[]	getStatementNames() Returns the statement names of all started and stopped statements.
void	removeStatement(EPStatement statement) Remove a statement from the isolated service.
void	removeStatement(EPStatement[] statements) Remove statements from the isolated service.

Method Detail

createEPL

EPStatement createEPL(String eplStatement,
                      String statementName,
                      Object userObject)
               throws EPException

Create and starts an EPL statement.

The statement name is optimally a unique name. If a statement of the same name has already been created, the engine assigns a postfix to create a unique statement name.

Accepts an application defined user data object associated with the statement. The user object is a single, unnamed field that is stored with every statement. Applications may put arbitrary objects in this field or a null value.

Parameters:

eplStatement - is the query language statement

userObject - is the application-defined user object, or null if none provided

statementName - is the statement name or null if not provided or provided via annotation instead

Returns:

EPStatement to poll data from or to add listeners to, or null if provided via annotation

Throws:

EPException - when the expression was not valid

getStatementNames

String[] getStatementNames()

Returns the statement names of all started and stopped statements.

This excludes the name of destroyed statements.

Returns:

statement names

addStatement

void addStatement(EPStatement statement)
           throws EPServiceIsolationException

Add a statement to the isolated service.

Parameters:

statement - to add

Throws:

EPServiceIsolationException - if the statement cannot be isolated, typically because it already is isolated

removeStatement

void removeStatement(EPStatement statement)
              throws EPServiceIsolationException

Remove a statement from the isolated service. This does not change engine state.

Parameters:

statement - to remove

Throws:

EPServiceIsolationException - if the statement was not isolated herein

addStatement

void addStatement(EPStatement[] statements)
           throws EPServiceIsolationException

Add statements to the isolated service.

Parameters:

statements - to add

Throws:

EPServiceIsolationException - if the statement cannot be isolated, typically because it already is isolated

removeStatement

void removeStatement(EPStatement[] statements)
              throws EPServiceIsolationException

Remove statements from the isolated service. This does not change engine state.

Parameters:

statements - to remove

Throws:

EPServiceIsolationException - if the statement was not isolated herein