public static ExprEvaluator ToExpression(string hint, StatementContext statementContext)
{
var toCompile = "select * from com.esper.espertech.compat.DateTimeOffsetHelper#TimeInMillis(" + hint + ")";
var raw = EPAdministratorHelper.CompileEPL(toCompile, hint, false, null,
SelectClauseStreamSelectorEnum.ISTREAM_ONLY, statementContext.EngineImportService,
statementContext.VariableService, statementContext.SchedulingService,
statementContext.EngineURI, statementContext.ConfigSnapshot,
new PatternNodeFactoryImpl(), new ContextManagementServiceImpl(),
new ExprDeclaredServiceImpl(), new TableServiceImpl());
var expr = raw.StreamSpecs[0].ViewSpecs[0].ObjectParameters[0];
var validated = ExprNodeUtility.ValidateSimpleGetSubtree(ExprNodeOrigin.HINT, expr, statementContext, OAEXPRESSIONTYPE, false);
return(validated.ExprEvaluator);
}
public static ExprEvaluator ToExpression(String hint, StatementContext statementContext)
{
String toCompile = "select * from System.Object.win:time(" + hint + ")";
StatementSpecRaw raw = EPAdministratorHelper.CompileEPL(toCompile, hint, false, null,
SelectClauseStreamSelectorEnum.ISTREAM_ONLY, statementContext.MethodResolutionService.EngineImportService,
statementContext.VariableService, statementContext.SchedulingService,
statementContext.EngineURI, statementContext.ConfigSnapshot,
new PatternNodeFactoryImpl(), new ContextManagementServiceImpl(),
new ExprDeclaredServiceImpl(),
new TableServiceImpl());
ExprNode expr = raw.StreamSpecs[0].ViewSpecs[0].ObjectParameters[0];
ExprNode validated = ExprNodeUtility.ValidateSimpleGetSubtree(ExprNodeOrigin.HINT, expr, statementContext, OAEXPRESSIONTYPE, false);
return(validated.ExprEvaluator);
}
