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com.bea.p13n.rules.model
Class NewInstanceModel

java.lang.Object
com.bea.p13n.model.Model
com.bea.p13n.model.XmlObjectModel
com.bea.p13n.rules.model.ClauseModel
com.bea.p13n.rules.model.MethodCallModel
com.bea.p13n.rules.model.NewInstanceModel

All Implemented Interfaces

Serializable, Cloneable

public class NewInstanceModel

extends MethodCallModel

A rule clause representing the creation of an object via a java type's constructor. This can only be used as a rule action, in which the resulting object will be added to the rule's context's working memory. A new-instance requires a type-alias, which is the java class which contains the constructor which will be executed. The arguments of a new-instance can be:

• literals: BigInteger, BigDecimal, Double, Float, Integer, Long, Boolean, Strings
• VariableArgument (not if an action with OR'ed conditions).
• PropertyRefArgument (not if an action with OR'ed conditions).
• UnknownArgument

See Also

Serialized Form

Nested Class Summary

static class

NewInstanceModel.Recognizer An object which can recognize the structure for this model.

Nested classes/interfaces inherited from class com.bea.p13n.rules.model.MethodCallModel

MethodCallModel.PropertyRefArgument, MethodCallModel.UnknownArgument, MethodCallModel.VariableArgument

Nested classes/interfaces inherited from class com.bea.p13n.model.Model

Model.ChangeEvent, Model.ChangeListener, Model.ChangeSupport, Model.Debug

Field Summary

static String

CLAUSE_TYPE The clause type for this.

Fields inherited from class com.bea.p13n.rules.model.MethodCallModel

LITERAL_NAMESPACE_URI

Fields inherited from class com.bea.p13n.rules.model.ClauseModel

clauseType

Fields inherited from class com.bea.p13n.model.XmlObjectModel

copyRootXmlObject, instanceUri, isComplete

Fields inherited from class com.bea.p13n.model.Model

childrenModels, docModel, parentModel, roChildrenModels

Constructor Summary

NewInstanceModel()

Method Summary

void	clearCachedData() Clear any cached data.
org.apache.xmlbeans.XmlObject	createNewXmlObject(String clauseType) Create a new, empty root object for the specified clauseType.
protected boolean	determineIsComplete() Override to include a check to make sure the type-alias is valid and the method signature type aliases are valid as well.
protected com.bea.p13n.expression.schema.MethodArgumentList	getMethodArgumentListFromXmlObject(boolean create) Get the MethodArgumentList from the underlying method call XmlObject
String[]	getMethodSignature() Get the fully-qualified java classes which are the signature of the constructor.
protected String[]	getMethodSignatureNoCache() Get the fully-qualified java classes which are the signature of the constructor, without any caching.
protected com.bea.p13n.expression.schema.NewInstance	getNewInstance()
String	getTypeAlias() Get the fully-qualified java class name which will be created.
protected void	removeMethodArgumentListFromXmlObject() Remove the MethodArgumentList from the underlying XmlObject.
void	setMethodSignature(String... types) Set the fully-qualified java classes which are the signature of the constructor.
void	setTypeAlias(String typeAlias) Set the fully-qualified java class name which will be created.
void	setXmlObject(String clauseType, org.apache.xmlbeans.XmlObject clause) Initialize this clause model with a type and a root object.

Methods inherited from class com.bea.p13n.rules.model.MethodCallModel

convertArgToXmlObject, convertXmlObjectArg, determineArgumentIsComplete, findPropertySetType, getMethodArguments, getMethodArgumentsNoCache, setMethodArguments, setParent, unsupportedObjectArg, unsupportedXmlObjectArg

Methods inherited from class com.bea.p13n.rules.model.ClauseModel

addBranch, addLiteral, addMethod, addMethodOrOperator, addOperator, addVariable, addVariableBinding, copy, getClauseType, getContainingRuleModel, getCopyXmlObject, initializeNew, isInActions, isInConditions, isValidTypeAlias, isValidVariableName, makeSafeCopy, toString

Methods inherited from class com.bea.p13n.model.XmlObjectModel

checkElement, childAdded, childRemoved, fixQName, getApplicationInstanceUri, getChild, getDocument, getLocalName, getParent, getQName, getRootXmlObject, isComplete, isNil, preRemove, propertyChanged, removeAllChildren, removeChild, setApplicationInstanceUri, setIsComplete, setIsComplete, setRootXmlObject

Methods inherited from class com.bea.p13n.model.Model

addChangeListener, addChild, addChild, clone, doubleEquals, equals, getChildren, getDebug, getDebug, getDocument, getParent, longEquals, removeChangeListener, removeChild, removeChild, removeEmpties, setDocument

Methods inherited from class java.lang.Object

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

Field Detail

CLAUSE_TYPE

public static final String CLAUSE_TYPE

The clause type for this.

See Also

Constants Summary

Constructor Detail

NewInstanceModel

public NewInstanceModel()

Method Detail

createNewXmlObject

public org.apache.xmlbeans.XmlObject createNewXmlObject(String clauseType)
                                                 throws IllegalArgumentException

Description copied from class: ClauseModel

Create a new, empty root object for the specified clauseType.

Subclasses need to implement this to create an appropriately typed and filled root XmlObject which represents the ClauseModel. The return value from this needs to be accepted from ClauseModel.setXmlObject(java.lang.String, org.apache.xmlbeans.XmlObject) for the specified clauseType.

Specified by:

createNewXmlObject in class ClauseModel

Parameters

clauseType - the clause type of the clause.

Returns

a new, empty initialize root object.

Throws

IllegalArgumentException - thrown on an unsupproted clauseType.

setXmlObject

public void setXmlObject(String clauseType,
                         org.apache.xmlbeans.XmlObject clause)
                  throws IllegalArgumentException

Description copied from class: ClauseModel

Initialize this clause model with a type and a root object.

This will fire ChangeEvents for clauseType and rootXmlObject.

Subclasses should override to call super.setXmlObject() and do any type checking and verification.

It is not expected that ClauseModels are valid after a call to this method which throws an exception, although the caller could recall this method with valid data.

Overrides:

setXmlObject in class ClauseModel

Parameters

clauseType - the clause type of the clause.

clause - the root xml object of the clause.

Throws

IllegalArgumentException - thrown if the clause is not valid for the ClauseModel or clauseType.

determineIsComplete

protected boolean determineIsComplete()

Override to include a check to make sure the type-alias is valid and the method signature type aliases are valid as well.

Overrides:

determineIsComplete in class MethodCallModel

See Also

ClauseModel.isValidTypeAlias(String)

clearCachedData

public void clearCachedData()

Description copied from class: MethodCallModel

Clear any cached data. Subclasses can override if they have additional cached data.

Overrides:

clearCachedData in class MethodCallModel

getNewInstance

protected com.bea.p13n.expression.schema.NewInstance getNewInstance()

getMethodArgumentListFromXmlObject

protected com.bea.p13n.expression.schema.MethodArgumentList getMethodArgumentListFromXmlObject(boolean create)

Description copied from class: MethodCallModel

Get the MethodArgumentList from the underlying method call XmlObject

Specified by:

getMethodArgumentListFromXmlObject in class MethodCallModel

Parameters

create - true to create if not currently set, false to return null if currently set.

Returns

the MethodArgumentList, or null if not set and create==false.

removeMethodArgumentListFromXmlObject

protected void removeMethodArgumentListFromXmlObject()

Description copied from class: MethodCallModel

Remove the MethodArgumentList from the underlying XmlObject.

Specified by:

removeMethodArgumentListFromXmlObject in class MethodCallModel

getTypeAlias

public String getTypeAlias()

Get the fully-qualified java class name which will be created.

setTypeAlias

public void setTypeAlias(String typeAlias)

Set the fully-qualified java class name which will be created.

getMethodSignature

public String[] getMethodSignature()

Get the fully-qualified java classes which are the signature of the constructor.

getMethodSignatureNoCache

protected String[] getMethodSignatureNoCache()

Get the fully-qualified java classes which are the signature of the constructor, without any caching.

setMethodSignature

public void setMethodSignature(String... types)

Set the fully-qualified java classes which are the signature of the constructor.

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