Package org.drools.ancompiler

Class PropagatorCompilerHandler

java.lang.Object

org.drools.ancompiler.NetworkHandlerAdaptor

org.drools.ancompiler.PropagatorCompilerHandler

All Implemented Interfaces:

NetworkHandler

Direct Known Subclasses:

AssertHandler, ModifyHandler

public abstract class PropagatorCompilerHandler
extends NetworkHandlerAdaptor

Field Summary

Fields

Modifier and Type	Field	Description
protected com.github.javaparser.ast.stmt.BlockStmt	allStatements
protected boolean	alphaNetContainsHashedField	This states if there is at least 1 set of hashed alpha nodes in the network
protected Deque<com.github.javaparser.ast.Node>	currentStatement
protected List<com.github.javaparser.ast.body.MethodDeclaration>	extractedMethods
protected static String	FACT_HANDLE_PARAM_NAME
protected String	factClassName
protected static String	LOCAL_FACT_VAR_NAME
protected static String	MODIFY_PREVIOUS_TUPLE_PARAM_NAME
protected static String	NEWLINE
protected static String	PROP_CONTEXT_PARAM_NAME
protected static String	RANGE_INDEX_VARIABLE_NAME_PREFIX
protected static String	WORKING_MEMORY_PARAM_NAME

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	PropagatorCompilerHandler(boolean alphaNetContainsHashedField, String factClassName)

Method Summary

Modifier and Type	Method	Description
protected abstract com.github.javaparser.ast.NodeList<com.github.javaparser.ast.expr.Expression>	arguments()
protected boolean	canInlineValue(Class<?> fieldType)
String	emitCode()
void	endHashedAlphaNode(org.drools.core.reteoo.AlphaNode hashedAlpha, Object hashedValue)
void	endNonHashedAlphaNode(org.drools.core.reteoo.AlphaNode alphaNode)	Receive notification of the end of a non-hashed org.kie.reteoo.AlphaNode.
void	endRangeIndex(org.drools.core.util.index.AlphaRangeIndex alphaRangeIndex)
void	endRangeIndexedAlphaNode(org.drools.core.reteoo.AlphaNode alphaNode)
com.github.javaparser.ast.type.ClassOrInterfaceType	factHandleType()
protected String	getAlphaNodeVariableName(org.drools.core.reteoo.AlphaNode alphaNode)
protected String	getContextVariableName(org.drools.core.reteoo.AlphaNode alphaNode)
com.github.javaparser.ast.stmt.BlockStmt	getCurrentBlockStatement()
com.github.javaparser.ast.stmt.SwitchEntry	getLastSwitchEntry()
protected int	getMinIdFromRangeIndex(org.drools.core.util.index.AlphaRangeIndex alphaRangeIndex)
protected String	getRangeIndexVariableName(org.drools.core.util.index.AlphaRangeIndex alphaRangeIndex, int minId)
protected String	getVariableName()
protected static String	getVariableName(Class<?> clazz, int nodeId)	Returns a variable name based on the simple name of the specified class appended with the specified nodeId.
protected static String	getVariableName(org.drools.core.reteoo.AlphaNode alphaNode)
protected static String	getVariableName(org.drools.core.reteoo.Sink sink)
static Class<?>	getVariableType(org.drools.core.reteoo.AlphaNode alphaNode)
static Class<?>	getVariableType(org.drools.core.reteoo.Sink sink)
protected com.github.javaparser.ast.stmt.ExpressionStmt	localVariable(com.github.javaparser.ast.type.Type type, String variableName, com.github.javaparser.ast.expr.MethodCallExpr source)
protected com.github.javaparser.ast.stmt.ExpressionStmt	localVariableWithCastInitializer(com.github.javaparser.ast.type.Type type, String variableName, com.github.javaparser.ast.expr.MethodCallExpr source)
protected abstract com.github.javaparser.ast.NodeList<com.github.javaparser.ast.body.Parameter>	methodParameters()
com.github.javaparser.ast.type.ClassOrInterfaceType	modifyPreviousTuplesType()
protected abstract com.github.javaparser.ast.stmt.Statement	propagateMethod(org.drools.core.reteoo.Sink sink)
protected abstract String	propagateMethodName()
com.github.javaparser.ast.type.ClassOrInterfaceType	propagationContextType()
static boolean	sinkCanBeInlined(org.drools.core.reteoo.Sink sink)
void	startBetaNode(org.drools.core.reteoo.BetaNode betaNode)
void	startHashedAlphaNode(org.drools.core.reteoo.AlphaNode hashedAlpha, Object hashedValue)
void	startHashedAlphaNodes(org.drools.core.rule.IndexableConstraint indexableConstraint)	Receive notification of the a group of hashed org.kie.reteoo.AlphaNodes.
void	startLeftInputAdapterNode(org.drools.core.reteoo.LeftInputAdapterNode leftInputAdapterNode)
void	startNonHashedAlphaNode(org.drools.core.reteoo.AlphaNode alphaNode)	Receive notification of the a non-hashed org.kie.reteoo.AlphaNode.
void	startObjectTypeNode(org.drools.core.reteoo.ObjectTypeNode objectTypeNode)	Receive notification of the beginning of an org.kie.reteoo.ObjectTypeNode
void	startRangeIndex(org.drools.core.util.index.AlphaRangeIndex alphaRangeIndex)	Receive notification of alpha node range index
void	startRangeIndexedAlphaNode(org.drools.core.reteoo.AlphaNode alphaNode)
void	startWindowNode(org.drools.core.reteoo.WindowNode windowNode)
com.github.javaparser.ast.type.ClassOrInterfaceType	workingMemoryType()

Methods inherited from class org.drools.ancompiler.NetworkHandlerAdaptor

endBetaNode, endHashedAlphaNodes, endObjectTypeNode, endWindowNode, endWindowNode, nullCaseAlphaNodeEnd, nullCaseAlphaNodeStart, replaceNameExpr

Methods inherited from class java.lang.Object

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

Field Detail

alphaNetContainsHashedField

protected final boolean alphaNetContainsHashedField

This states if there is at least 1 set of hashed alpha nodes in the network

factClassName

protected final String factClassName

FACT_HANDLE_PARAM_NAME

protected static final String FACT_HANDLE_PARAM_NAME

See Also:

Constant Field Values

PROP_CONTEXT_PARAM_NAME

protected static final String PROP_CONTEXT_PARAM_NAME

See Also:

Constant Field Values

WORKING_MEMORY_PARAM_NAME

protected static final String WORKING_MEMORY_PARAM_NAME

See Also:

Constant Field Values

MODIFY_PREVIOUS_TUPLE_PARAM_NAME

protected static final String MODIFY_PREVIOUS_TUPLE_PARAM_NAME

See Also:

Constant Field Values

LOCAL_FACT_VAR_NAME

protected static final String LOCAL_FACT_VAR_NAME

See Also:

Constant Field Values

allStatements

protected com.github.javaparser.ast.stmt.BlockStmt allStatements

currentStatement

protected Deque<com.github.javaparser.ast.Node> currentStatement

extractedMethods

protected List<com.github.javaparser.ast.body.MethodDeclaration> extractedMethods

NEWLINE

protected static final String NEWLINE

See Also:

Constant Field Values

RANGE_INDEX_VARIABLE_NAME_PREFIX

protected static final String RANGE_INDEX_VARIABLE_NAME_PREFIX

See Also:

Constant Field Values

Constructor Detail

PropagatorCompilerHandler

protected PropagatorCompilerHandler(boolean alphaNetContainsHashedField,
                                    String factClassName)

Method Detail

propagateMethod

protected abstract com.github.javaparser.ast.stmt.Statement propagateMethod(org.drools.core.reteoo.Sink sink)

methodParameters

protected abstract com.github.javaparser.ast.NodeList<com.github.javaparser.ast.body.Parameter> methodParameters()

arguments

protected abstract com.github.javaparser.ast.NodeList<com.github.javaparser.ast.expr.Expression> arguments()

startObjectTypeNode

public void startObjectTypeNode(org.drools.core.reteoo.ObjectTypeNode objectTypeNode)

Description copied from interface: NetworkHandler

Receive notification of the beginning of an org.kie.reteoo.ObjectTypeNode

The Network parser will invoke this method only once, before any other event callback.

Specified by:

startObjectTypeNode in interface NetworkHandler

Overrides:

startObjectTypeNode in class NetworkHandlerAdaptor

Parameters:

objectTypeNode - the object type node

See Also:

NetworkHandler.endObjectTypeNode(org.kie.reteoo.ObjectTypeNode)

startBetaNode

public void startBetaNode(org.drools.core.reteoo.BetaNode betaNode)

Specified by:

startBetaNode in interface NetworkHandler

Overrides:

startBetaNode in class NetworkHandlerAdaptor

startWindowNode

public void startWindowNode(org.drools.core.reteoo.WindowNode windowNode)

Specified by:

startWindowNode in interface NetworkHandler

Overrides:

startWindowNode in class NetworkHandlerAdaptor

startLeftInputAdapterNode

public void startLeftInputAdapterNode(org.drools.core.reteoo.LeftInputAdapterNode leftInputAdapterNode)

Specified by:

startLeftInputAdapterNode in interface NetworkHandler

Overrides:

startLeftInputAdapterNode in class NetworkHandlerAdaptor

startNonHashedAlphaNode

public void startNonHashedAlphaNode(org.drools.core.reteoo.AlphaNode alphaNode)

Description copied from interface: NetworkHandler

Receive notification of the a non-hashed org.kie.reteoo.AlphaNode.

The Parser will invoke this method at the beginning of every non-hashed Alpha in the Network; there will be a corresponding endNonHashedAlphaNode() event for every startNonHashedAlphaNode() event. All of the node's decendants will be reported, in order, before the corresponding endNonHashedAlphaNode() event.

Specified by:

startNonHashedAlphaNode in interface NetworkHandler

Overrides:

startNonHashedAlphaNode in class NetworkHandlerAdaptor

Parameters:

alphaNode - non-hashed AlphaNode

See Also:

NetworkHandler.endNonHashedAlphaNode(org.drools.core.reteoo.AlphaNode)

endNonHashedAlphaNode

public void endNonHashedAlphaNode(org.drools.core.reteoo.AlphaNode alphaNode)

Description copied from interface: NetworkHandler

Receive notification of the end of a non-hashed org.kie.reteoo.AlphaNode.

The parser will invoke this method at the end of every alpha in the network; there will be a corresponding NetworkHandler.startNonHashedAlphaNode(org.kie.reteoo.AlphaNode) event for every endNonHashedAlphaNode event.

Specified by:

endNonHashedAlphaNode in interface NetworkHandler

Overrides:

endNonHashedAlphaNode in class NetworkHandlerAdaptor

Parameters:

alphaNode - non-hashed AlphaNode

startHashedAlphaNodes

public void startHashedAlphaNodes(org.drools.core.rule.IndexableConstraint indexableConstraint)

Description copied from interface: NetworkHandler

Receive notification of the a group of hashed org.kie.reteoo.AlphaNodes.

The Parser will invoke this method at the beginning of every groups of hashed Alphas in the Network; there will be a corresponding NetworkHandler.endHashedAlphaNodes(org.drools.core.rule.IndexableConstraint) event for every startHashedAlphaNodes() event. The actual alpha nodes will be reported via the NetworkHandler.startHashedAlphaNode(org.drools.core.reteoo.AlphaNode, java.lang.Object) method, along with all of the node's decendants, in order, before the corresponding NetworkHandler.endHashedAlphaNode(org.drools.core.reteoo.AlphaNode, java.lang.Object) event.

Specified by:

startHashedAlphaNodes in interface NetworkHandler

Overrides:

startHashedAlphaNodes in class NetworkHandlerAdaptor

Parameters:

indexableConstraint - field reader that is used to access the hashed attribute

See Also:

NetworkHandler.endHashedAlphaNodes(org.drools.core.rule.IndexableConstraint), NetworkHandler.startHashedAlphaNode(org.drools.core.reteoo.AlphaNode, java.lang.Object)

canInlineValue

protected boolean canInlineValue(Class<?> fieldType)

startHashedAlphaNode

public void startHashedAlphaNode(org.drools.core.reteoo.AlphaNode hashedAlpha,
                                 Object hashedValue)

Specified by:

startHashedAlphaNode in interface NetworkHandler

Overrides:

startHashedAlphaNode in class NetworkHandlerAdaptor

endHashedAlphaNode

public void endHashedAlphaNode(org.drools.core.reteoo.AlphaNode hashedAlpha,
                               Object hashedValue)

Specified by:

endHashedAlphaNode in interface NetworkHandler

Overrides:

endHashedAlphaNode in class NetworkHandlerAdaptor

startRangeIndex

public void startRangeIndex(org.drools.core.util.index.AlphaRangeIndex alphaRangeIndex)

Description copied from interface: NetworkHandler

Receive notification of alpha node range index

Specified by:

startRangeIndex in interface NetworkHandler

Overrides:

startRangeIndex in class NetworkHandlerAdaptor

startRangeIndexedAlphaNode

public void startRangeIndexedAlphaNode(org.drools.core.reteoo.AlphaNode alphaNode)

Specified by:

startRangeIndexedAlphaNode in interface NetworkHandler

Overrides:

startRangeIndexedAlphaNode in class NetworkHandlerAdaptor

endRangeIndexedAlphaNode

public void endRangeIndexedAlphaNode(org.drools.core.reteoo.AlphaNode alphaNode)

Specified by:

endRangeIndexedAlphaNode in interface NetworkHandler

Overrides:

endRangeIndexedAlphaNode in class NetworkHandlerAdaptor

getLastSwitchEntry

public com.github.javaparser.ast.stmt.SwitchEntry getLastSwitchEntry()

endRangeIndex

public void endRangeIndex(org.drools.core.util.index.AlphaRangeIndex alphaRangeIndex)

Specified by:

endRangeIndex in interface NetworkHandler

Overrides:

endRangeIndex in class NetworkHandlerAdaptor

getCurrentBlockStatement

public com.github.javaparser.ast.stmt.BlockStmt getCurrentBlockStatement()

propagateMethodName

protected abstract String propagateMethodName()

emitCode

public String emitCode()

modifyPreviousTuplesType

public com.github.javaparser.ast.type.ClassOrInterfaceType modifyPreviousTuplesType()

factHandleType

public com.github.javaparser.ast.type.ClassOrInterfaceType factHandleType()

propagationContextType

public com.github.javaparser.ast.type.ClassOrInterfaceType propagationContextType()

workingMemoryType

public com.github.javaparser.ast.type.ClassOrInterfaceType workingMemoryType()

localVariableWithCastInitializer

protected com.github.javaparser.ast.stmt.ExpressionStmt localVariableWithCastInitializer(com.github.javaparser.ast.type.Type type,
                                                                                         String variableName,
                                                                                         com.github.javaparser.ast.expr.MethodCallExpr source)

localVariable

protected com.github.javaparser.ast.stmt.ExpressionStmt localVariable(com.github.javaparser.ast.type.Type type,
                                                                      String variableName,
                                                                      com.github.javaparser.ast.expr.MethodCallExpr source)

getVariableType

public static Class<?> getVariableType(org.drools.core.reteoo.AlphaNode alphaNode)

getVariableType

public static Class<?> getVariableType(org.drools.core.reteoo.Sink sink)

sinkCanBeInlined

public static boolean sinkCanBeInlined(org.drools.core.reteoo.Sink sink)

getVariableName

protected static String getVariableName(org.drools.core.reteoo.AlphaNode alphaNode)

getContextVariableName

protected String getContextVariableName(org.drools.core.reteoo.AlphaNode alphaNode)

getVariableName

protected static String getVariableName(org.drools.core.reteoo.Sink sink)

getVariableName

protected String getVariableName()

getVariableName

protected static String getVariableName(Class<?> clazz,
                                        int nodeId)

Returns a variable name based on the simple name of the specified class appended with the specified nodeId.

Parameters:

clazz - class whose simple name is lowercased and user as the prefix of the variable name

nodeId - id of org.kie.common.NetworkNode

Returns:

variable name

See Also:

Class.getSimpleName()

getAlphaNodeVariableName

protected String getAlphaNodeVariableName(org.drools.core.reteoo.AlphaNode alphaNode)

getRangeIndexVariableName

protected String getRangeIndexVariableName(org.drools.core.util.index.AlphaRangeIndex alphaRangeIndex,
                                           int minId)

getMinIdFromRangeIndex

protected int getMinIdFromRangeIndex(org.drools.core.util.index.AlphaRangeIndex alphaRangeIndex)