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org.eclipse.persistence.oxm.mappings
Class XMLAnyObjectMapping

java.lang.Object
org.eclipse.persistence.mappings.DatabaseMapping
org.eclipse.persistence.oxm.mappings.XMLAbstractAnyMapping
org.eclipse.persistence.oxm.mappings.XMLAnyObjectMapping

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, XMLMapping

public class XMLAnyObjectMapping

extends XMLAbstractAnyMapping

implements XMLMapping

Any object XML mappings map an attribute that contains a single object to an XML element. The referenced object may be of any type (including String), and does not need not be related to any other particular type through inheritance or a common interface. The corresponding object attribute value should be generic enough for all possible application values. Note that each of the referenced objects (except String) must specify a default root element on their descriptor.

Any object XML mappings are useful with the following XML schema constructs:

• any
• choice
• substitution groups

Setting the XPath: TopLink XML mappings make use of XPath statements to find the relevant data in an XML document. The XPath statement is relative to the context node specified in the descriptor. The XPath may contain node type, path, and positional information. The XPath is specified on the mapping using the setXPath method. Note that for XML Any Object Mappings the XPath is optional.

The following XPath statements may be used to specify the location of XML data relating to an object's name attribute:

XPath	Description
contact-method	The name information is stored in the contact-method element.
contact-method/info	The XPath statement may be used to specify any valid path.
contact-method[2]	The XPath statement may contain positional information. In this case the contact information is stored in the second occurrence of the contact-method element.

Mapping an element of type xs:anyType as an Any Object Mapping:

XML Schema
<?xml version="1.0" encoding="UTF-8"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<xsd:element />
<xsd:complexType >
<xsd:sequence>
<xsd:element />
</xsd:sequence>
</xsd:complexType>
<xsd:element >
<xsd:complexType>
<xsd:sequence>
<xsd:element />
<xsd:element />
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element />
</xsd:schema>


Code Sample
XMLAnyObjectMapping contactMethodMapping = new XMLAnyObjectMapping();
contactMethodMapping.setAttributeName("contactMethod");
contactMethodMapping.setXPath("contact-method");


More Information: For more information about using the XML Any Object Mapping, see the "Understanding XML Mappings" chapter of the Oracle TopLink Developer's Guide.

Since:

Oracle TopLink 10g Release 2 (10.1.3)

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.eclipse.persistence.mappings.DatabaseMapping

DatabaseMapping.WriteType

Field Summary

private boolean	areOtherMappingInThisContext
private XMLConverter	converter
private XMLField	field
private boolean	isMixedContent
private boolean	useXMLRoot

Fields inherited from class org.eclipse.persistence.mappings.DatabaseMapping

attributeAccessor, attributeName, derivedIdMapping, derivesId, descriptor, fields, isCacheable, isJPAId, isLazy, isMapKeyMapping, isOptional, isPrimaryKeyMapping, isReadOnly, isRemotelyInitialized, mapsIdValue, NO_FIELDS, NO_WEIGHT, properties, weight, WEIGHT_AGGREGATE, WEIGHT_DIRECT, WEIGHT_TO_ONE, WEIGHT_TRANSFORM

Constructor Summary

XMLAnyObjectMapping()

Method Summary

void	buildBackupClone(java.lang.Object clone, java.lang.Object backup, org.eclipse.persistence.internal.sessions.UnitOfWorkImpl unitOfWork) INTERNAL: Clone the attribute from the clone and assign it to the backup.
void	buildClone(java.lang.Object original, org.eclipse.persistence.internal.identitymaps.CacheKey cacheKey, java.lang.Object clone, org.eclipse.persistence.internal.sessions.AbstractSession cloningSession) INTERNAL: Clone the attribute from the original and assign it to the clone.
void	buildCloneFromRow(org.eclipse.persistence.internal.sessions.AbstractRecord databaseRow, org.eclipse.persistence.internal.queries.JoinedAttributeManager joinManager, java.lang.Object clone, org.eclipse.persistence.internal.identitymaps.CacheKey sharedCacheKey, ObjectBuildingQuery sourceQuery, org.eclipse.persistence.internal.sessions.UnitOfWorkImpl unitOfWork, org.eclipse.persistence.internal.sessions.AbstractSession executionSession) INTERNAL: A combination of readFromRowIntoObject and buildClone.
protected org.eclipse.persistence.internal.sessions.AbstractRecord	buildCompositeRow(java.lang.Object attributeValue, org.eclipse.persistence.internal.sessions.AbstractSession session, XMLDescriptor referenceDescriptor, org.eclipse.persistence.internal.sessions.AbstractRecord parentRow, org.eclipse.persistence.internal.helper.DatabaseField field, java.lang.Object originalObject, boolean wasXMLRoot)
private java.lang.Object	buildObjectValuesFromDOMRecord(DOMRecord record, org.eclipse.persistence.internal.sessions.AbstractSession session, ObjectBuildingQuery query, org.eclipse.persistence.internal.queries.JoinedAttributeManager joinManager)
void	cascadePerformRemoveIfRequired(java.lang.Object object, org.eclipse.persistence.internal.sessions.UnitOfWorkImpl uow, java.util.Map visitedObjects) INTERNAL: Cascade perform delete through mappings that require the cascade
void	cascadeRegisterNewIfRequired(java.lang.Object object, org.eclipse.persistence.internal.sessions.UnitOfWorkImpl uow, java.util.Map visitedObjects) INTERNAL: Cascade registerNew for Create through mappings that require the cascade
java.lang.Object	clone() INTERNAL: Clones itself.
org.eclipse.persistence.internal.sessions.ChangeRecord	compareForChange(java.lang.Object clone, java.lang.Object backup, org.eclipse.persistence.internal.sessions.ObjectChangeSet owner, org.eclipse.persistence.internal.sessions.AbstractSession session) INTERNAL: This method was created in VisualAge.
boolean	compareObjects(java.lang.Object firstObject, java.lang.Object secondObject, org.eclipse.persistence.internal.sessions.AbstractSession session) INTERNAL: Compare the attributes belonging to this mapping for the objects.
void	fixObjectReferences(java.lang.Object object, java.util.Map objectDescriptors, java.util.Map processedObjects, ObjectLevelReadQuery query, RemoteSession session) INTERNAL: An object has been serialized from the server to the client.
XMLConverter	getConverter()
org.eclipse.persistence.internal.helper.DatabaseField	getField() INTERNAL: Return the field associated with this mapping if there is exactly one.
java.util.Vector	getFields() INTERNAL: Returns a vector of all the fields this mapping represents.
private org.eclipse.persistence.internal.oxm.XPathFragment	getFragmentToCompare(XMLField field, XMLField context)
org.w3c.dom.Node	getNodeToReplace(org.w3c.dom.Node parent)
private java.util.ArrayList	getUnmappedChildNodes(org.w3c.dom.NodeList nodes)
void	initialize(org.eclipse.persistence.internal.sessions.AbstractSession session) INTERNAL: Allow for initialization of properties and validation.
boolean	isMixedContent()
private boolean	isUnmappedContent(org.w3c.dom.Node node)
boolean	isXMLMapping() INTERNAL: All relational mappings should implement this method to return true.
void	iterate(org.eclipse.persistence.internal.descriptors.DescriptorIterator iterator) INTERNAL: Iterate on the appropriate attribute value.
void	mergeChangesIntoObject(java.lang.Object target, org.eclipse.persistence.internal.sessions.ChangeRecord changeRecord, java.lang.Object source, org.eclipse.persistence.internal.sessions.MergeManager mergeManager, org.eclipse.persistence.internal.sessions.AbstractSession targetSession) INTERNAL: Merge changes from the source to the target object.
void	mergeIntoObject(java.lang.Object target, boolean isTargetUninitialized, java.lang.Object source, org.eclipse.persistence.internal.sessions.MergeManager mergeManager, org.eclipse.persistence.internal.sessions.AbstractSession targetSession) INTERNAL: Merge changes from the source to the target object.
void	setConverter(XMLConverter converter)
void	setField(org.eclipse.persistence.internal.helper.DatabaseField field)
void	setMixedContent(boolean mixed)
void	setUseXMLRoot(boolean useXMLRoot)
void	setXPath(java.lang.String xpath)
boolean	usesXMLRoot()
java.lang.Object	valueFromRow(org.eclipse.persistence.internal.sessions.AbstractRecord row, org.eclipse.persistence.internal.queries.JoinedAttributeManager joinManager, ObjectBuildingQuery sourceQuery, org.eclipse.persistence.internal.identitymaps.CacheKey cacheKey, org.eclipse.persistence.internal.sessions.AbstractSession executionSession, boolean isTargetProtected, java.lang.Boolean[] wasCacheUsed) INTERNAL: A subclass should implement this method if it wants different behavior.
void	writeFromObjectIntoRow(java.lang.Object object, org.eclipse.persistence.internal.sessions.AbstractRecord row, org.eclipse.persistence.internal.sessions.AbstractSession session, DatabaseMapping.WriteType writeType) INTERNAL: A subclass should implement this method if it wants different behavior.
private void	writeSimpleValue(XMLField xmlRootField, DOMRecord row, org.eclipse.persistence.internal.sessions.AbstractSession session, java.lang.Object originalObject, java.lang.Object value, org.w3c.dom.Node root, org.w3c.dom.Node toReplace, boolean wasXMLRoot)
void	writeSingleValue(java.lang.Object value, java.lang.Object parent, XMLRecord row, org.eclipse.persistence.internal.sessions.AbstractSession session) INTERNAL: A method that marshals a single value to the provided Record based on this mapping's XPath.

Methods inherited from class org.eclipse.persistence.oxm.mappings.XMLAbstractAnyMapping

buildObjectAndWrapInXMLRoot, buildObjectForNonXMLRoot, buildObjectNoReferenceDescriptor, buildXMLRoot, buildXMLRootForText, getDescriptor, getKeepAsElementPolicy, isWriteOnly, preInitialize, setAttributeValueInObject, setIsWriteOnly, setKeepAsElementPolicy

Methods inherited from class org.eclipse.persistence.mappings.DatabaseMapping

buildBackupCloneForPartObject, buildChangeRecord, buildCloneForPartObject, buildContainerClone, buildCopy, buildExpression, buildObjectJoinExpression, buildObjectJoinExpression, buildShallowOriginalFromRow, calculateDeferredChanges, cascadeDiscoverAndPersistUnregisteredNewObjects, cascadePerformRemovePrivateOwnedObjectFromChangeSetIfRequired, cloneFields, collectFields, collectQueryParameters, convertClassNamesToClasses, createCloneValueHolder, derivesId, earlyPreDelete, extractNestedExpressions, fixRealObjectReferences, getAttributeAccessor, getAttributeClassification, getAttributeName, getAttributeValueFromObject, getContainerPolicy, getDerivedIdMapping, getDescriptor, getFieldClassification, getGetMethodName, getMapsIdValue, getObjectCorrespondingTo, getProperties, getProperty, getRealAttributeValueFromAttribute, getRealAttributeValueFromObject, getRealCollectionAttributeValueFromObject, getReferenceDescriptor, getRelationshipPartner, getSelectFields, getSelectTables, getSetMethodName, getValueFromRemoteValueHolder, getWeight, hasConstraintDependency, hasDependency, hasInverseConstraintDependency, hasMapsIdValue, hasRootExpressionThatShouldUseOuterJoin, instantiateAttribute, isAbstractCompositeCollectionMapping, isAbstractCompositeDirectCollectionMapping, isAbstractCompositeObjectMapping, isAbstractDirectMapping, isAggregateCollectionMapping, isAggregateMapping, isAggregateObjectMapping, isCacheable, isCandidateForPrivateOwnedRemoval, isCascadedLockingSupported, isChangeTrackingSupported, isCloningRequired, isCollectionMapping, isDatabaseMapping, isDirectCollectionMapping, isDirectMapMapping, isDirectToFieldMapping, isDirectToXMLTypeMapping, isEISMapping, isElementCollectionMapping, isForeignReferenceMapping, isJoiningSupported, isJPAId, isLazy, isLockableMapping, isManyToManyMapping, isManyToOneMapping, isMapKeyMapping, isNestedTableMapping, isObjectReferenceMapping, isOneToManyMapping, isOneToOneMapping, isOptional, isOwned, isPrimaryKeyMapping, isPrivateOwned, isReadOnly, isReferenceMapping, isRelationalMapping, isRemotelyInitialized, isStructureMapping, isTransformationMapping, isUnidirectionalOneToManyMapping, isUsingMethodAccess, isVariableOneToOneMapping, iterateOnRealAttributeValue, performDataModificationEvent, postCalculateChanges, postCalculateChangesOnDeleted, postDelete, postInitialize, postInsert, postUpdate, preDelete, preInsert, prepareCascadeLockingPolicy, preUpdate, readFromResultSetIntoObject, readFromRowIntoObject, readOnly, readWrite, recordPrivateOwnedRemovals, rehashFieldDependancies, remoteInitialization, remotelyInitialized, replaceValueHoldersIn, setAttributeAccessor, setAttributeName, setChangeListener, setDerivedIdMapping, setDerivesId, setDescriptor, setFields, setGetMethodName, setIsCacheable, setIsJPAId, setIsLazy, setIsMapKeyMapping, setIsOptional, setIsPrimaryKeyMapping, setIsReadOnly, setMapsIdValue, setProperties, setProperty, setRealAttributeValueInObject, setSetMethodName, setWeight, simpleAddToCollectionChangeRecord, simpleRemoveFromCollectionChangeRecord, toString, updateChangeRecord, updateCollectionChangeRecord, validateAfterInitialization, validateBeforeInitialization, valueFromObject, valueFromResultSet, valueFromRow, verifyDelete, writeFromAttributeIntoRow, writeFromObjectIntoRowForShallowInsert, writeFromObjectIntoRowForShallowInsertWithChangeRecord, writeFromObjectIntoRowForUpdate, writeFromObjectIntoRowForWhereClause, writeFromObjectIntoRowWithChangeRecord, writeInsertFieldsIntoRow, writeUpdateFieldsIntoRow

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eclipse.persistence.oxm.mappings.XMLMapping

isWriteOnly, setIsWriteOnly

Field Detail

field

private XMLField field

useXMLRoot

private boolean useXMLRoot

areOtherMappingInThisContext

private boolean areOtherMappingInThisContext

converter

private XMLConverter converter

isMixedContent

private boolean isMixedContent

Constructor Detail

XMLAnyObjectMapping

public XMLAnyObjectMapping()

Method Detail

buildBackupClone

public void buildBackupClone(java.lang.Object clone,
                             java.lang.Object backup,
                             org.eclipse.persistence.internal.sessions.UnitOfWorkImpl unitOfWork)

INTERNAL: Clone the attribute from the clone and assign it to the backup.

Specified by:

buildBackupClone in class DatabaseMapping

buildClone

public void buildClone(java.lang.Object original,
                       org.eclipse.persistence.internal.identitymaps.CacheKey cacheKey,
                       java.lang.Object clone,
                       org.eclipse.persistence.internal.sessions.AbstractSession cloningSession)

INTERNAL: Clone the attribute from the original and assign it to the clone.

Specified by:

buildClone in class DatabaseMapping

buildCloneFromRow

public void buildCloneFromRow(org.eclipse.persistence.internal.sessions.AbstractRecord databaseRow,
                              org.eclipse.persistence.internal.queries.JoinedAttributeManager joinManager,
                              java.lang.Object clone,
                              org.eclipse.persistence.internal.identitymaps.CacheKey sharedCacheKey,
                              ObjectBuildingQuery sourceQuery,
                              org.eclipse.persistence.internal.sessions.UnitOfWorkImpl unitOfWork,
                              org.eclipse.persistence.internal.sessions.AbstractSession executionSession)

Description copied from class: DatabaseMapping

INTERNAL: A combination of readFromRowIntoObject and buildClone.

buildClone assumes the attribute value exists on the original and can simply be copied.

readFromRowIntoObject assumes that one is building an original.

Both of the above assumptions are false in this method, and actually attempts to do both at the same time.

Extract value from the row and set the attribute to this value in the working copy clone. In order to bypass the shared cache when in transaction a UnitOfWork must be able to populate working copies directly from the row.

Specified by:

buildCloneFromRow in class DatabaseMapping

cascadePerformRemoveIfRequired

public void cascadePerformRemoveIfRequired(java.lang.Object object,
                                           org.eclipse.persistence.internal.sessions.UnitOfWorkImpl uow,
                                           java.util.Map visitedObjects)

INTERNAL: Cascade perform delete through mappings that require the cascade

Specified by:

cascadePerformRemoveIfRequired in class DatabaseMapping

cascadeRegisterNewIfRequired

public void cascadeRegisterNewIfRequired(java.lang.Object object,
                                         org.eclipse.persistence.internal.sessions.UnitOfWorkImpl uow,
                                         java.util.Map visitedObjects)

INTERNAL: Cascade registerNew for Create through mappings that require the cascade

Specified by:

cascadeRegisterNewIfRequired in class DatabaseMapping

clone

public java.lang.Object clone()

Description copied from class: DatabaseMapping

INTERNAL: Clones itself.

Overrides:

clone in class DatabaseMapping

compareForChange

public org.eclipse.persistence.internal.sessions.ChangeRecord compareForChange(java.lang.Object clone,
                                                                               java.lang.Object backup,
                                                                               org.eclipse.persistence.internal.sessions.ObjectChangeSet owner,
                                                                               org.eclipse.persistence.internal.sessions.AbstractSession session)

INTERNAL: This method was created in VisualAge.

Specified by:

compareForChange in class DatabaseMapping

Returns:

prototype.changeset.ChangeRecord

compareObjects

public boolean compareObjects(java.lang.Object firstObject,
                              java.lang.Object secondObject,
                              org.eclipse.persistence.internal.sessions.AbstractSession session)

INTERNAL: Compare the attributes belonging to this mapping for the objects.

Specified by:

compareObjects in class DatabaseMapping

fixObjectReferences

public void fixObjectReferences(java.lang.Object object,
                                java.util.Map objectDescriptors,
                                java.util.Map processedObjects,
                                ObjectLevelReadQuery query,
                                RemoteSession session)

INTERNAL: An object has been serialized from the server to the client. Replace the transient attributes of the remote value holders with client-side objects.

Specified by:

fixObjectReferences in class DatabaseMapping

getField

public org.eclipse.persistence.internal.helper.DatabaseField getField()

Description copied from class: DatabaseMapping

INTERNAL: Return the field associated with this mapping if there is exactly one. This is required for object relational mapping to print them, but because they are defined in in an Enterprise context they cannot be cast to. Mappings that have a field include direct mappings and object relational mappings.

Overrides:

getField in class DatabaseMapping

iterate

public void iterate(org.eclipse.persistence.internal.descriptors.DescriptorIterator iterator)

INTERNAL: Iterate on the appropriate attribute value.

Specified by:

iterate in class DatabaseMapping

setXPath

public void setXPath(java.lang.String xpath)

mergeChangesIntoObject

public void mergeChangesIntoObject(java.lang.Object target,
                                   org.eclipse.persistence.internal.sessions.ChangeRecord changeRecord,
                                   java.lang.Object source,
                                   org.eclipse.persistence.internal.sessions.MergeManager mergeManager,
                                   org.eclipse.persistence.internal.sessions.AbstractSession targetSession)

INTERNAL: Merge changes from the source to the target object.

Specified by:

mergeChangesIntoObject in class DatabaseMapping

mergeIntoObject

public void mergeIntoObject(java.lang.Object target,
                            boolean isTargetUninitialized,
                            java.lang.Object source,
                            org.eclipse.persistence.internal.sessions.MergeManager mergeManager,
                            org.eclipse.persistence.internal.sessions.AbstractSession targetSession)

INTERNAL: Merge changes from the source to the target object.

Specified by:

mergeIntoObject in class DatabaseMapping

setField

public void setField(org.eclipse.persistence.internal.helper.DatabaseField field)

valueFromRow

public java.lang.Object valueFromRow(org.eclipse.persistence.internal.sessions.AbstractRecord row,
                                     org.eclipse.persistence.internal.queries.JoinedAttributeManager joinManager,
                                     ObjectBuildingQuery sourceQuery,
                                     org.eclipse.persistence.internal.identitymaps.CacheKey cacheKey,
                                     org.eclipse.persistence.internal.sessions.AbstractSession executionSession,
                                     boolean isTargetProtected,
                                     java.lang.Boolean[] wasCacheUsed)
                              throws DatabaseException

Description copied from class: DatabaseMapping

INTERNAL: A subclass should implement this method if it wants different behavior. Returns the value for the mapping from the database row. The execution session is the session the query was executed on, and its platform should be used for data conversion.

Overrides:

valueFromRow in class DatabaseMapping

Throws:

DatabaseException

buildObjectValuesFromDOMRecord

private java.lang.Object buildObjectValuesFromDOMRecord(DOMRecord record,
                                                        org.eclipse.persistence.internal.sessions.AbstractSession session,
                                                        ObjectBuildingQuery query,
                                                        org.eclipse.persistence.internal.queries.JoinedAttributeManager joinManager)

writeFromObjectIntoRow

public void writeFromObjectIntoRow(java.lang.Object object,
                                   org.eclipse.persistence.internal.sessions.AbstractRecord row,
                                   org.eclipse.persistence.internal.sessions.AbstractSession session,
                                   DatabaseMapping.WriteType writeType)
                            throws DescriptorException

Description copied from class: DatabaseMapping

INTERNAL: A subclass should implement this method if it wants different behavior. Write the attribute value from the object to the row.

Overrides:

writeFromObjectIntoRow in class DatabaseMapping

Throws:

DescriptorException

writeSingleValue

public void writeSingleValue(java.lang.Object value,
                             java.lang.Object parent,
                             XMLRecord row,
                             org.eclipse.persistence.internal.sessions.AbstractSession session)

Description copied from interface: XMLMapping

INTERNAL: A method that marshals a single value to the provided Record based on this mapping's XPath. Used for Sequenced marshalling.

Specified by:

writeSingleValue in interface XMLMapping

Parameters:

value - - The value to be marshalled

row - - The Record the value is being marshalled too.

buildCompositeRow

protected org.eclipse.persistence.internal.sessions.AbstractRecord buildCompositeRow(java.lang.Object attributeValue,
                                                                                     org.eclipse.persistence.internal.sessions.AbstractSession session,
                                                                                     XMLDescriptor referenceDescriptor,
                                                                                     org.eclipse.persistence.internal.sessions.AbstractRecord parentRow,
                                                                                     org.eclipse.persistence.internal.helper.DatabaseField field,
                                                                                     java.lang.Object originalObject,
                                                                                     boolean wasXMLRoot)

initialize

public void initialize(org.eclipse.persistence.internal.sessions.AbstractSession session)
                throws DescriptorException

Description copied from class: DatabaseMapping

INTERNAL: Allow for initialization of properties and validation.

Overrides:

initialize in class DatabaseMapping

Throws:

DescriptorException

isXMLMapping

public boolean isXMLMapping()

Description copied from class: DatabaseMapping

INTERNAL: All relational mappings should implement this method to return true.

Overrides:

isXMLMapping in class DatabaseMapping

getFields

public java.util.Vector getFields()

Description copied from class: DatabaseMapping

INTERNAL: Returns a vector of all the fields this mapping represents.

Overrides:

getFields in class DatabaseMapping

setUseXMLRoot

public void setUseXMLRoot(boolean useXMLRoot)

usesXMLRoot

public boolean usesXMLRoot()

getUnmappedChildNodes

private java.util.ArrayList getUnmappedChildNodes(org.w3c.dom.NodeList nodes)

getFragmentToCompare

private org.eclipse.persistence.internal.oxm.XPathFragment getFragmentToCompare(XMLField field,
                                                                                XMLField context)

isUnmappedContent

private boolean isUnmappedContent(org.w3c.dom.Node node)

getNodeToReplace

public org.w3c.dom.Node getNodeToReplace(org.w3c.dom.Node parent)

writeSimpleValue

private void writeSimpleValue(XMLField xmlRootField,
                              DOMRecord row,
                              org.eclipse.persistence.internal.sessions.AbstractSession session,
                              java.lang.Object originalObject,
                              java.lang.Object value,
                              org.w3c.dom.Node root,
                              org.w3c.dom.Node toReplace,
                              boolean wasXMLRoot)

getConverter

public XMLConverter getConverter()

setConverter

public void setConverter(XMLConverter converter)

isMixedContent

public boolean isMixedContent()

setMixedContent

public void setMixedContent(boolean mixed)

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