Class JAXBElement<T>
- All Implemented Interfaces:
Serializable
JAXB representation of an Xml Element.
This class represents information about an Xml Element from both the element declaration within a schema and the element instance value within an xml document with the following properties
- element's xml tag name
- value represents the element instance's atttribute(s) and content model
- element declaration's declaredType (xs:element @type attribute)
- scope of element declaration
- boolean nil property. (element instance's xsi:nil attribute)
The declaredType and scope property are the JAXB class binding for the xml type definition.
Scope is either JAXBElement.GlobalScope
or the Java class representing the
complex type definition containing the schema element declaration.
There is a property constraint that if value is null, then nil must be true. The converse is not true to enable representing a nil element with attribute(s). If nil is true, it is possible that value is non-null so it can hold the value of the attributes associated with a nil element.
- Since:
- JAXB 2.0
- See Also:
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Nested Class Summary
Modifier and TypeClassDescriptionstatic final class
Designates global scope for an xml element. -
Field Summary
Modifier and TypeFieldDescriptionJava datatype binding for xml element declaration's type.protected final QName
xml element tag nameprotected boolean
true iff the xml element instance has xsi:nil="true".protected final Class
Scope of xml element declaration representing this xml element instance.protected T
xml element value. -
Constructor Summary
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Method Summary
Modifier and TypeMethodDescriptionReturns the Java binding of the xml element declaration's type attribute.getName()
Returns the xml element tag name.getScope()
Returns scope of xml element declaration.getValue()
Return the content model and attribute values for this element.boolean
Returns true iff this xml element declaration is global.boolean
isNil()
Returns true iff this element instance content model is nil.boolean
Returns true iff this xml element instance's value has a different type than xml element declaration's declared type.void
setNil
(boolean value) Set whether this element has nil content.void
Set the content model and attributes of this xml element.
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Field Details
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name
xml element tag name -
declaredType
Java datatype binding for xml element declaration's type. -
scope
Scope of xml element declaration representing this xml element instance. Can be one of the following values: -JAXBElement.GlobalScope
for global xml element declaration. - local element declaration has a scope set to the Java class representation of complex type defintion containing xml element declaration. -
value
xml element value. Represents content model and attributes of an xml element instance. -
nil
protected boolean niltrue iff the xml element instance has xsi:nil="true".
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Constructor Details
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JAXBElement
Construct an xml element instance.
- Parameters:
name
- Java binding of xml element tag namedeclaredType
- Java binding of xml element declaration's typescope
- Java binding of scope of xml element declaration. Passing null is the same as passing GlobalScope.classvalue
- Java instance representing xml element's value.- See Also:
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JAXBElement
Construct an xml element instance. This is just a convenience method for new JAXBElement(name,declaredType,GlobalScope.class,value)
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Method Details
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getDeclaredType
Returns the Java binding of the xml element declaration's type attribute. -
getName
Returns the xml element tag name. -
setValue
Set the content model and attributes of this xml element.
When this property is set to null, isNil() must by true. Details of constraint are described at
isNil()
.- See Also:
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getValue
Return the content model and attribute values for this element.
See
isNil()
for a description of a property constraint when this value is null -
getScope
Returns scope of xml element declaration.- Returns:
- GlobalScope.class if this element is of global scope.
- See Also:
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isNil
public boolean isNil()Returns true iff this element instance content model is nil.
This property always returns true when
getValue()
is null. Note that the converse is not true, when this property is true,getValue()
can contain a non-null value for attribute(s). It is valid for a nil xml element to have attribute(s). -
setNil
public void setNil(boolean value) Set whether this element has nil content.
- See Also:
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isGlobalScope
public boolean isGlobalScope()Returns true iff this xml element declaration is global. -
isTypeSubstituted
public boolean isTypeSubstituted()Returns true iff this xml element instance's value has a different type than xml element declaration's declared type.
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