com.espertech.esper.epl.spec
Class PatternStreamSpecCompiled

java.lang.Object
  com.espertech.esper.epl.spec.StreamSpecBase
      com.espertech.esper.epl.spec.PatternStreamSpecCompiled

All Implemented Interfaces:

StreamSpec, StreamSpecCompiled, MetaDefItem, java.io.Serializable

public class PatternStreamSpecCompiled
extends StreamSpecBase
implements StreamSpecCompiled

Specification for building an event stream out of a pattern statement and views staggered onto the pattern statement.

The pattern statement is represented by the top EvalNode evaluation node. A pattern statement contains tagged events (i.e. a=A -> b=B). Thus the resulting event type is has properties "a" and "b" of the type of A and B.

See Also:

Serialized Form

Field Summary

Fields inherited from interface com.espertech.esper.epl.spec.StreamSpecCompiled

EMPTY_STREAM_ARRAY

Constructor Summary

PatternStreamSpecCompiled(EvalFactoryNode evalFactoryNode, java.util.LinkedHashMap<java.lang.String,Pair<EventType,java.lang.String>> taggedEventTypes, java.util.LinkedHashMap<java.lang.String,Pair<EventType,java.lang.String>> arrayEventTypes, java.util.LinkedHashSet<java.lang.String> allTags, ViewSpec[] viewSpecs, java.lang.String optionalStreamName, StreamSpecOptions streamSpecOptions, boolean suppressSameEventMatches, boolean discardPartialsOnMatch)
Ctor.

Method Summary

java.util.LinkedHashSet<java.lang.String>	getAllTags()
java.util.LinkedHashMap<java.lang.String,Pair<EventType,java.lang.String>>	getArrayEventTypes() Returns event types tagged in the pattern expression under a repeat-operator.
EvalFactoryNode	getEvalFactoryNode() Returns the pattern expression evaluation node for the top pattern operator.
MatchedEventMapMeta	getMatchedEventMapMeta()
java.util.LinkedHashMap<java.lang.String,Pair<EventType,java.lang.String>>	getTaggedEventTypes() Returns event types tagged in the pattern expression.
boolean	isDiscardPartialsOnMatch()
boolean	isSuppressSameEventMatches()

Methods inherited from class com.espertech.esper.epl.spec.StreamSpecBase

getOptionalStreamName, getOptions, getViewSpecs

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.espertech.esper.epl.spec.StreamSpec

getOptionalStreamName, getOptions, getViewSpecs

Constructor Detail

PatternStreamSpecCompiled

public PatternStreamSpecCompiled(EvalFactoryNode evalFactoryNode,
                                 java.util.LinkedHashMap<java.lang.String,Pair<EventType,java.lang.String>> taggedEventTypes,
                                 java.util.LinkedHashMap<java.lang.String,Pair<EventType,java.lang.String>> arrayEventTypes,
                                 java.util.LinkedHashSet<java.lang.String> allTags,
                                 ViewSpec[] viewSpecs,
                                 java.lang.String optionalStreamName,
                                 StreamSpecOptions streamSpecOptions,
                                 boolean suppressSameEventMatches,
                                 boolean discardPartialsOnMatch)

Ctor.

Parameters:

evalFactoryNode - - pattern evaluation node representing pattern statement

viewSpecs - - specifies what view to use to derive data

taggedEventTypes - - event tags and their types as specified in the pattern, copied to allow original collection to change

arrayEventTypes - - event tags and their types as specified in the pattern for any repeat-expressions that generate an array of events

optionalStreamName - - stream name, or null if none supplied

streamSpecOptions - - additional stream options such as unidirectional stream in a join, applicable for joins

Method Detail

getEvalFactoryNode

public EvalFactoryNode getEvalFactoryNode()

Returns the pattern expression evaluation node for the top pattern operator.

Returns:

parent pattern expression node

getTaggedEventTypes

public java.util.LinkedHashMap<java.lang.String,Pair<EventType,java.lang.String>> getTaggedEventTypes()

Returns event types tagged in the pattern expression.

Returns:

map of tag and event type tagged in pattern expression

getArrayEventTypes

public java.util.LinkedHashMap<java.lang.String,Pair<EventType,java.lang.String>> getArrayEventTypes()

Returns event types tagged in the pattern expression under a repeat-operator.

Returns:

map of tag and event type tagged in pattern expression, repeated an thus producing array events

getMatchedEventMapMeta

public MatchedEventMapMeta getMatchedEventMapMeta()

getAllTags

public java.util.LinkedHashSet<java.lang.String> getAllTags()

isSuppressSameEventMatches

public boolean isSuppressSameEventMatches()

isDiscardPartialsOnMatch

public boolean isDiscardPartialsOnMatch()