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java.lang.Objectnet.esper.core.EPStatementStartMethod
public class EPStatementStartMethod
Starts and provides the stop method for EQL statements.
Constructor Summary | |
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EPStatementStartMethod(String statementId,
String statementName,
StatementSpecCompiled statementSpec,
String eqlStatement,
EPServicesContext services,
EPStatementHandle epStatementHandle)
Ctor. |
Method Summary | |
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protected static String[] |
determineStreamNames(List<StreamSpecCompiled> streams)
Returns a stream name assigned for each stream, generated if none was supplied. |
Pair<Viewable,EPStatementStopMethod> |
start()
Starts the EQL statement. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public EPStatementStartMethod(String statementId, String statementName, StatementSpecCompiled statementSpec, String eqlStatement, EPServicesContext services, EPStatementHandle epStatementHandle)
statementId
- is the statement is assigned to the statementstatementName
- is the statement name assignedstatementSpec
- is a container for the definition of all statement constructs that
may have been used in the statement, i.e. if defines the select clauses, insert into, outer joins etc.eqlStatement
- is the expression textservices
- is the service instances for dependency injectionepStatementHandle
- is the statements-own handle for use in registering callbacks with servicesMethod Detail |
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public Pair<Viewable,EPStatementStopMethod> start() throws ExprValidationException, ViewProcessingException
ExprValidationException
- when the expression validation fails
ViewProcessingException
- when views cannot be startedprotected static String[] determineStreamNames(List<StreamSpecCompiled> streams)
streams
- - stream specifications
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