Package org.drools.ancompiler

Class DeclarationsHandler

java.lang.Object

org.drools.ancompiler.NetworkHandlerAdaptor

org.drools.ancompiler.DeclarationsHandler

All Implemented Interfaces:

NetworkHandler

public class DeclarationsHandler
extends NetworkHandlerAdaptor

This handler is used to create the member declarations section of a generated subclass of a CompiledNetwork. Currently we only create member variables for the following types of nodes:

Non-hashed AlphaNodes LeftInputAdapterNodes BetaNodes A Map for each set of hashed AlphaNodes. The keys are the hashed values, and the values are the IDs of the alphas

Field Summary

Fields

Modifier and Type	Field	Description
protected static String	NEWLINE
protected static String	RANGE_INDEX_VARIABLE_NAME_PREFIX

Constructor Summary

Constructors

Constructor	Description
DeclarationsHandler(StringBuilder builder, boolean disableContextEntry)

Method Summary

Modifier and Type	Method	Description
protected String	getAlphaNodeVariableName(org.drools.core.reteoo.AlphaNode alphaNode)
protected String	getContextVariableName(org.drools.core.reteoo.AlphaNode alphaNode)
Collection<HashedAlphasDeclaration>	getHashedAlphaDeclarations()
protected int	getMinIdFromRangeIndex(org.drools.core.util.index.AlphaRangeIndex alphaRangeIndex)
Map<String,org.drools.core.util.index.AlphaRangeIndex>	getRangeIndexDeclarationMap()
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)
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	startRangeIndex(org.drools.core.util.index.AlphaRangeIndex alphaRangeIndex)	Receive notification of alpha node range index
void	startWindowNode(org.drools.core.reteoo.WindowNode windowNode)

Methods inherited from class org.drools.ancompiler.NetworkHandlerAdaptor

endBetaNode, endHashedAlphaNode, endHashedAlphaNodes, endNonHashedAlphaNode, endObjectTypeNode, endRangeIndex, endRangeIndexedAlphaNode, endWindowNode, endWindowNode, nullCaseAlphaNodeEnd, nullCaseAlphaNodeStart, replaceNameExpr, startObjectTypeNode, startRangeIndexedAlphaNode

Methods inherited from class java.lang.Object

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

Field Detail

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

DeclarationsHandler

public DeclarationsHandler(StringBuilder builder,
                           boolean disableContextEntry)

Method Detail

getHashedAlphaDeclarations

public Collection<HashedAlphasDeclaration> getHashedAlphaDeclarations()

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)

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

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)

startHashedAlphaNode

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

Specified by:

startHashedAlphaNode in interface NetworkHandler

Overrides:

startHashedAlphaNode 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

getRangeIndexDeclarationMap

public Map<String,org.drools.core.util.index.AlphaRangeIndex> getRangeIndexDeclarationMap()

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)