com.espertech.esper.common.internal.epl.pattern.core

Class PatternExpressionUtil

java.lang.Object

com.espertech.esper.common.internal.epl.pattern.core.PatternExpressionUtil

public class PatternExpressionUtil
extends Object

Utility for evaluating pattern expressions.

Constructor Summary

Constructors

Constructor and Description
PatternExpressionUtil()

Method Summary

Modifier and Type	Method and Description
static Object	evaluateChecked(String objectName, ExprEvaluator evaluator, EventBean[] eventsPerStream, ExprEvaluatorContext exprEvaluatorContext)
static Object	getKeys(MatchedEventMap matchEvent, MatchedEventConvertor convertor, ExprEvaluator expression, AgentInstanceContext agentInstanceContext)
static EPException	handleRuntimeEx(RuntimeException ex, String objectName)
static void	toPrecedenceFreeEPL(StringWriter writer, String delimiterText, List<EvalForgeNode> childNodes, PatternExpressionPrecedenceEnum precedence)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PatternExpressionUtil

public PatternExpressionUtil()

Method Detail

toPrecedenceFreeEPL

public static void toPrecedenceFreeEPL(StringWriter writer,
                                       String delimiterText,
                                       List<EvalForgeNode> childNodes,
                                       PatternExpressionPrecedenceEnum precedence)

getKeys

public static Object getKeys(MatchedEventMap matchEvent,
                             MatchedEventConvertor convertor,
                             ExprEvaluator expression,
                             AgentInstanceContext agentInstanceContext)

evaluateChecked

public static Object evaluateChecked(String objectName,
                                     ExprEvaluator evaluator,
                                     EventBean[] eventsPerStream,
                                     ExprEvaluatorContext exprEvaluatorContext)
                              throws EPException

Throws:

EPException

handleRuntimeEx

public static EPException handleRuntimeEx(RuntimeException ex,
                                          String objectName)