Package org.apache.cayenne.reflect
Interface PropertyDescriptor
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- All Known Subinterfaces:
ArcProperty,AttributeProperty,Property,ToManyMapProperty,ToManyProperty,ToOneProperty
- All Known Implementing Classes:
BaseArcProperty,BaseProperty,BaseToManyProperty,BaseToOneProperty,SimpleAttributeProperty
public interface PropertyDescriptorDefines bean property API used by Cayenne to access object data, do faulting and graph maintenance tasks.- Since:
- 4.0
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description StringgetName()Returns property name.voidinjectValueHolder(Object object)If a property is implemented as a ValueHolder, this operation would create an unfaulted value holder and inject it into the object, if an object doesn't have it set yet.ObjectreadProperty(Object object)Returns a property value, inflating unresolved object if need.ObjectreadPropertyDirectly(Object object)Returns a property value of an object without disturbing the object fault status.booleanvisit(PropertyVisitor visitor)A visitor accept method.voidwriteProperty(Object object, Object oldValue, Object newValue)Sets a property value, inflating unresolved object if need.voidwritePropertyDirectly(Object object, Object oldValue, Object newValue)Sets a property value of an object without disturbing the object fault status.
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Method Detail
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getName
String getName()
Returns property name.
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readPropertyDirectly
Object readPropertyDirectly(Object object) throws PropertyException
Returns a property value of an object without disturbing the object fault status.- Throws:
PropertyException
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readProperty
Object readProperty(Object object) throws PropertyException
Returns a property value, inflating unresolved object if need.- Throws:
PropertyException
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writePropertyDirectly
void writePropertyDirectly(Object object, Object oldValue, Object newValue) throws PropertyException
Sets a property value of an object without disturbing the object fault status. Old value of the property is specified as a hint and can be ignored by the property implementor.- Throws:
PropertyException
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writeProperty
void writeProperty(Object object, Object oldValue, Object newValue) throws PropertyException
Sets a property value, inflating unresolved object if need. Old value of the property is specified as a hint and can be ignored by the property implementor.- Throws:
PropertyException
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visit
boolean visit(PropertyVisitor visitor)
A visitor accept method.- Returns:
- a status returned by the corresponding callback method of the visitor. It serves as an indication of whether peer properties processing is still needed.
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injectValueHolder
void injectValueHolder(Object object) throws PropertyException
If a property is implemented as a ValueHolder, this operation would create an unfaulted value holder and inject it into the object, if an object doesn't have it set yet.- Throws:
PropertyException
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