org.eclipse.viatra.cep.core.engine.runtime

Class PartiallyMatchedEventPatternMatch

java.lang.Object

org.eclipse.viatra.query.runtime.api.impl.BasePatternMatch

org.eclipse.viatra.cep.core.engine.runtime.PartiallyMatchedEventPatternMatch

All Implemented Interfaces:

java.lang.Cloneable, IPatternMatch

public abstract class PartiallyMatchedEventPatternMatch
extends BasePatternMatch

Pattern-specific match representation of the org.eclipse.viatra.cep.core.engine.runtime.partiallyMatchedEventPattern pattern, to be used in conjunction with PartiallyMatchedEventPatternMatcher.

Class fields correspond to parameters of the pattern. Fields with value null are considered unassigned. Each instance is a (possibly partial) substitution of pattern parameters, usable to represent a match of the pattern in the result of a query, or to specify the bound (fixed) input parameters when issuing a query.

See Also:

PartiallyMatchedEventPatternMatcher, PartiallyMatchedEventPatternProcessor

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object obj)
java.lang.Object	get(java.lang.String parameterName) Returns the value of the parameter with the given name, or null if name is invalid.
Automaton	getAutomaton()
EventToken	getEventToken()
State	getState()
int	hashCode()
static PartiallyMatchedEventPatternMatch	newEmptyMatch() Returns an empty, mutable match.
static PartiallyMatchedEventPatternMatch	newMatch(Automaton pAutomaton, EventToken pEventToken, State pState) Returns a new (partial) match.
static PartiallyMatchedEventPatternMatch	newMutableMatch(Automaton pAutomaton, EventToken pEventToken, State pState) Returns a mutable (partial) match.
java.util.List<java.lang.String>	parameterNames() Returns the list of symbolic parameter names.
java.lang.String	patternName() Identifies the name of the pattern for which this is a match.
java.lang.String	prettyPrint() Prints the list of parameter-value pairs.
boolean	set(java.lang.String parameterName, java.lang.Object newValue) Sets the parameter with the given name to the given value.
void	setAutomaton(Automaton pAutomaton)
void	setEventToken(EventToken pEventToken)
void	setState(State pState)
PartiallyMatchedEventPatternQuerySpecification	specification()
java.lang.Object[]	toArray() Converts the match to an array representation, with each pattern parameter at their respective position.
PartiallyMatchedEventPatternMatch	toImmutable() Takes an immutable snapshot of this match.

Methods inherited from class org.eclipse.viatra.query.runtime.api.impl.BasePatternMatch

get, isCompatibleWith, makeImmutableList, prettyPrintFeature, prettyPrintValue, set, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.eclipse.viatra.query.runtime.api.IPatternMatch

isMutable

Method Detail

get

public java.lang.Object get(java.lang.String parameterName)

Description copied from interface: IPatternMatch

Returns the value of the parameter with the given name, or null if name is invalid.

getAutomaton

public Automaton getAutomaton()

getEventToken

public EventToken getEventToken()

getState

public State getState()

set

public boolean set(java.lang.String parameterName,
                   java.lang.Object newValue)

Description copied from interface: IPatternMatch

Sets the parameter with the given name to the given value.

Works only if match is mutable. See IPatternMatch.isMutable().

setAutomaton

public void setAutomaton(Automaton pAutomaton)

setEventToken

public void setEventToken(EventToken pEventToken)

setState

public void setState(State pState)

patternName

public java.lang.String patternName()

Description copied from interface: IPatternMatch

Identifies the name of the pattern for which this is a match.

Specified by:

patternName in interface IPatternMatch

Overrides:

patternName in class BasePatternMatch

parameterNames

public java.util.List<java.lang.String> parameterNames()

Description copied from interface: IPatternMatch

Returns the list of symbolic parameter names.

Specified by:

parameterNames in interface IPatternMatch

Overrides:

parameterNames in class BasePatternMatch

toArray

public java.lang.Object[] toArray()

Description copied from interface: IPatternMatch

Converts the match to an array representation, with each pattern parameter at their respective position. In case of a partial match, unsubstituted parameters will be represented as null elements in the array.

Returns:

a newly constructed array containing each parameter substitution of the match in order.

toImmutable

public PartiallyMatchedEventPatternMatch toImmutable()

Description copied from interface: IPatternMatch

Takes an immutable snapshot of this match.

Returns:

the match itself in case of immutable matches, an immutable copy in case of mutable ones.

prettyPrint

public java.lang.String prettyPrint()

Description copied from interface: IPatternMatch

Prints the list of parameter-value pairs.

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object

specification

public PartiallyMatchedEventPatternQuerySpecification specification()

Returns:

the pattern for which this is a match.

newEmptyMatch

public static PartiallyMatchedEventPatternMatch newEmptyMatch()

Returns an empty, mutable match. Fields of the mutable match can be filled to create a partial match, usable as matcher input.

Returns:

the empty match.

newMutableMatch

public static PartiallyMatchedEventPatternMatch newMutableMatch(Automaton pAutomaton,
                                                                EventToken pEventToken,
                                                                State pState)

Returns a mutable (partial) match. Fields of the mutable match can be filled to create a partial match, usable as matcher input.

Parameters:

pAutomaton - the fixed value of pattern parameter automaton, or null if not bound.

pEventToken - the fixed value of pattern parameter eventToken, or null if not bound.

pState - the fixed value of pattern parameter state, or null if not bound.

Returns:

the new, mutable (partial) match object.

newMatch

public static PartiallyMatchedEventPatternMatch newMatch(Automaton pAutomaton,
                                                         EventToken pEventToken,
                                                         State pState)

Returns a new (partial) match. This can be used e.g. to call the matcher with a partial match.

The returned match will be immutable. Use newEmptyMatch() to obtain a mutable match object.

Parameters:

pAutomaton - the fixed value of pattern parameter automaton, or null if not bound.

pEventToken - the fixed value of pattern parameter eventToken, or null if not bound.

pState - the fixed value of pattern parameter state, or null if not bound.

Returns:

the (partial) match object.