com.espertech.esper.core.start

Interface EPStatementStartMethod

All Known Implementing Classes:

EPStatementStartMethodBase, EPStatementStartMethodCreateContext, EPStatementStartMethodCreateExpression, EPStatementStartMethodCreateGraph, EPStatementStartMethodCreateIndex, EPStatementStartMethodCreateSchema, EPStatementStartMethodCreateTable, EPStatementStartMethodCreateVariable, EPStatementStartMethodCreateWindow, EPStatementStartMethodOnTrigger, EPStatementStartMethodSelect, EPStatementStartMethodUpdate

public interface EPStatementStartMethod

Starts and provides the stop method for EPL statements.

Field Summary

Fields

Modifier and Type	Field and Description
static int	DEFAULT_AGENT_INSTANCE_ID

Method Summary

Modifier and Type	Method and Description
StatementSpecCompiled	getStatementSpec()
EPStatementStartResult	start(EPServicesContext services, StatementContext statementContext, boolean isNewStatement, boolean isRecoveringStatement, boolean isRecoveringResilient) Starts the EPL statement.

Field Detail

DEFAULT_AGENT_INSTANCE_ID

static final int DEFAULT_AGENT_INSTANCE_ID

See Also:

Constant Field Values

Method Detail

start

EPStatementStartResult start(EPServicesContext services,
                             StatementContext statementContext,
                             boolean isNewStatement,
                             boolean isRecoveringStatement,
                             boolean isRecoveringResilient)
                      throws ExprValidationException,
                             ViewProcessingException

Starts the EPL statement.

Parameters:

statementContext - statement level services

isNewStatement - indicator whether the statement is new or a stop-restart statement

isRecoveringStatement - true to indicate the statement is in the process of being recovered

isRecoveringResilient - true to indicate the statement is in the process of being recovered and that statement is resilient @throws com.espertech.esper.epl.expression.ExprValidationException when the expression validation fails

services - services

Returns:

a viewable to attach to for listening to events, and a stop method to invoke to clean up

Throws:

ExprValidationException - validation exception

ViewProcessingException - when views cannot be started

getStatementSpec

StatementSpecCompiled getStatementSpec()