Uses of Package
com.espertech.esper.pattern

Packages that use com.espertech.esper.pattern

com.espertech.esper.core.context.activator	Activation of streams for statement start.
com.espertech.esper.core.context.factory	Statement agent instance factories.
com.espertech.esper.core.context.mgr	Context management.
com.espertech.esper.core.service	Implementation of client package interfaces, glue code
com.espertech.esper.core.service.resource	Core service statement resource holders.
com.espertech.esper.core.start	Classes related to start and stop of statements
com.espertech.esper.epl.parse	Parsers and AST tree walkers and helper classes transforming AST into business objects
com.espertech.esper.epl.spec	Contains EPL statement specification classes define the constructs that make up an EPL statement, such as the list of items in the select clause, the insert-into stream name and property names etc.
com.espertech.esper.filter	Main switchboard filtering and routing of incoming events to interested statements is performed in this package.
com.espertech.esper.metrics.instrumentation	EPL instrumentation helpers.
com.espertech.esper.pattern	Pattern expression tree and pattern state objects, the later resembles pattern expression state for each active pattern instance
com.espertech.esper.pattern.guard	Pattern guards that can define the lifetime of a pattern
com.espertech.esper.pattern.observer	Pattern observer classes the observe timer events
com.espertech.esper.pattern.pool	Pattern subexpression pool management
com.espertech.esper.view.internal	Internal management views for buffering view results and providing these to joins.

Classes in com.espertech.esper.pattern used by com.espertech.esper.core.context.activator

EvalRootFactoryNode
This class is always the root node in the evaluation tree representing an event expression.

EvalRootState
Interface for a root state node accepting a callback to use to indicate pattern results.

PatternContext
Contains handles to implementations of services needed by evaluation nodes.

Classes in com.espertech.esper.pattern used by com.espertech.esper.core.context.factory

EvalRootState
Interface for a root state node accepting a callback to use to indicate pattern results.

Classes in com.espertech.esper.pattern used by com.espertech.esper.core.context.mgr

EvalRootState
Interface for a root state node accepting a callback to use to indicate pattern results.

MatchedEventMap
Collection for internal use similar to the MatchedEventMap class in the client package that holds the one or more events that could match any defined event expressions.

MatchedEventMapMeta

PatternMatchCallback
Callback interface for anything that requires to be informed of matching events which would be stored in the MatchedEventMap structure passed to the implementation.

Classes in com.espertech.esper.pattern used by com.espertech.esper.core.service

EvalFactoryNode
Superclass of all nodes in an evaluation tree representing an event pattern expression.

PatternContextFactory
Factory for pattern context instances, creating context objects for each distinct pattern based on the patterns root node and stream id.

PatternNodeFactory

PatternObjectResolutionService
Factory service for resolving pattern objects such as guards and observers.

Classes in com.espertech.esper.pattern used by com.espertech.esper.core.service.resource

EvalRootState
Interface for a root state node accepting a callback to use to indicate pattern results.

Classes in com.espertech.esper.pattern used by com.espertech.esper.core.start

EvalFactoryNode
Superclass of all nodes in an evaluation tree representing an event pattern expression.

Classes in com.espertech.esper.pattern used by com.espertech.esper.epl.parse

EvalFactoryNode
Superclass of all nodes in an evaluation tree representing an event pattern expression.

PatternNodeFactory

Classes in com.espertech.esper.pattern used by com.espertech.esper.epl.spec

EvalFactoryNode
Superclass of all nodes in an evaluation tree representing an event pattern expression.

EvalNodeUtilFactoryFilter

MatchedEventMapMeta

PatternNodeFactory

Classes in com.espertech.esper.pattern used by com.espertech.esper.filter

MatchedEventMap
Collection for internal use similar to the MatchedEventMap class in the client package that holds the one or more events that could match any defined event expressions.

Classes in com.espertech.esper.pattern used by com.espertech.esper.metrics.instrumentation

EvalAndNode
This class represents an 'and' operator in the evaluation tree representing an event expressions.

EvalEveryDistinctNode
This class represents an 'every-distinct' operator in the evaluation tree representing an event expression.

EvalEveryNode
This class represents an 'every' operator in the evaluation tree representing an event expression.

EvalFilterNode
This class represents a filter of events in the evaluation tree representing any event expressions.

EvalFollowedByNode
This class represents a followed-by operator in the evaluation tree representing any event expressions.

EvalGuardNode
This class represents a guard in the evaluation tree representing an event expressions.

EvalMatchUntilNode
This class represents a match-until observer in the evaluation tree representing any event expressions.

EvalNotNode
This class represents an 'not' operator in the evaluation tree representing any event expressions.

EvalObserverNode
This class represents an observer expression in the evaluation tree representing an pattern expression.

EvalOrNode
This class represents an 'or' operator in the evaluation tree representing any event expressions.

MatchedEventMap
Collection for internal use similar to the MatchedEventMap class in the client package that holds the one or more events that could match any defined event expressions.

Classes in com.espertech.esper.pattern used by com.espertech.esper.pattern

EvalAndFactoryNode
This class represents an 'and' operator in the evaluation tree representing an event expressions.

EvalAndNode
This class represents an 'and' operator in the evaluation tree representing an event expressions.

EvalAuditFactoryNode
This class represents an 'or' operator in the evaluation tree representing any event expressions.

EvalAuditInstanceCount

EvalAuditNode
This class represents an 'or' operator in the evaluation tree representing any event expressions.

EvalAuditStateNode
This class represents the state of a followed-by operator in the evaluation state tree.

EvalEveryDistinctFactoryNode
This class represents an 'every-distinct' operator in the evaluation tree representing an event expression.

EvalEveryDistinctNode
This class represents an 'every-distinct' operator in the evaluation tree representing an event expression.

EvalEveryFactoryNode
This class represents an 'every' operator in the evaluation tree representing an event expression.

EvalEveryNode
This class represents an 'every' operator in the evaluation tree representing an event expression.

EvalFactoryNode
Superclass of all nodes in an evaluation tree representing an event pattern expression.

EvalFilterConsumptionHandler

EvalFilterFactoryNode
This class represents a filter of events in the evaluation tree representing any event expressions.

EvalFilterNode
This class represents a filter of events in the evaluation tree representing any event expressions.

EvalFilterStateNode
This class contains the state of a single filter expression in the evaluation state tree.

EvalFilterStateNodeConsume

EvalFollowedByFactoryNode
This class represents a followed-by operator in the evaluation tree representing any event expressions.

EvalFollowedByNode
This class represents a followed-by operator in the evaluation tree representing any event expressions.

EvalFollowedByNodeOpType
Followed-by operator types in the evaluation tree representing any event expressions.

EvalGuardFactoryNode
This class represents a guard in the evaluation tree representing an event expressions.

EvalGuardNode
This class represents a guard in the evaluation tree representing an event expressions.

EvalMatchUntilFactoryNode
This class represents a match-until observer in the evaluation tree representing any event expressions.

EvalMatchUntilNode
This class represents a match-until observer in the evaluation tree representing any event expressions.

EvalMatchUntilStateBounds

EvalNode
Superclass of all nodes in an evaluation tree representing an event pattern expression.

EvalNodeAnalysisResult
Result of analysis of pattern expression node tree.

EvalNodeBase
Superclass of all nodes in an evaluation tree representing an event pattern expression.

EvalNodeFactoryBase
Superclass of all nodes in an evaluation tree representing an event pattern expression.

EvalNodeUtilFactoryFilter

EvalNotFactoryNode
This class represents an 'not' operator in the evaluation tree representing any event expressions.

EvalNotNode
This class represents an 'not' operator in the evaluation tree representing any event expressions.

EvalObserverFactoryNode
This class represents an observer expression in the evaluation tree representing an pattern expression.

EvalObserverNode
This class represents an observer expression in the evaluation tree representing an pattern expression.

EvalOrFactoryNode
This class represents an 'or' operator in the evaluation tree representing any event expressions.

EvalOrNode
This class represents an 'or' operator in the evaluation tree representing any event expressions.

EvalRootFactoryNode
This class is always the root node in the evaluation tree representing an event expression.

EvalRootNode
This class is always the root node in the evaluation tree representing an event expression.

EvalRootState
Interface for a root state node accepting a callback to use to indicate pattern results.

EvalStateNode
Superclass of all state nodes in an evaluation node tree representing an event expressions.

EvalStateNodeNumber

EvalStateNodeVisitor
Interface for visiting each element in the evaluation node tree for an event expression (see Visitor pattern).

Evaluator
Interface for nodes in an expression evaluation state tree that are being informed by a child that the event expression fragments (subtrees) which the child represents has turned true (evaluateTrue method) or false (evaluateFalse).

MatchedEventConvertor
Converts from a map of prior matching events to a events per stream for resultion by expressions.

MatchedEventMap
Collection for internal use similar to the MatchedEventMap class in the client package that holds the one or more events that could match any defined event expressions.

MatchedEventMapImpl
Collection for internal use similar to the MatchedEventMap class in the client package that holds the one or more events that could match any defined event expressions.

MatchedEventMapMeta

PatternAgentInstanceContext
Contains handles to implementations of services needed by evaluation nodes.

PatternContext
Contains handles to implementations of services needed by evaluation nodes.

PatternContextFactory
Factory for pattern context instances, creating context objects for each distinct pattern based on the patterns root node and stream id.

PatternExpressionPrecedenceEnum

PatternLevelAnnotationFlags

PatternMatchCallback
Callback interface for anything that requires to be informed of matching events which would be stored in the MatchedEventMap structure passed to the implementation.

PatternNodeFactory

PatternObjectException
This exception is thrown to indicate a problem with a view expression.

PatternObjectResolutionService
Factory service for resolving pattern objects such as guards and observers.

PatternStarter
Interface for observing when an event expression needs to start (by adding the first listener).

PatternStopCallback
Interface for executing a stop on an active event expression.

Classes in com.espertech.esper.pattern used by com.espertech.esper.pattern.guard

EvalStateNodeNumber

MatchedEventConvertor
Converts from a map of prior matching events to a events per stream for resultion by expressions.

MatchedEventMap
Collection for internal use similar to the MatchedEventMap class in the client package that holds the one or more events that could match any defined event expressions.

PatternAgentInstanceContext
Contains handles to implementations of services needed by evaluation nodes.

Classes in com.espertech.esper.pattern used by com.espertech.esper.pattern.observer

EvalStateNodeNumber

MatchedEventConvertor
Converts from a map of prior matching events to a events per stream for resultion by expressions.

MatchedEventMap
Collection for internal use similar to the MatchedEventMap class in the client package that holds the one or more events that could match any defined event expressions.

PatternAgentInstanceContext
Contains handles to implementations of services needed by evaluation nodes.

Classes in com.espertech.esper.pattern used by com.espertech.esper.pattern.pool

EvalFollowedByNode
This class represents a followed-by operator in the evaluation tree representing any event expressions.

Classes in com.espertech.esper.pattern used by com.espertech.esper.view.internal

EvalRootState
Interface for a root state node accepting a callback to use to indicate pattern results.