Package org.simpleframework.xml.core
Class InstanceFactory.ClassInstance
- java.lang.Object
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- org.simpleframework.xml.core.InstanceFactory.ClassInstance
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- All Implemented Interfaces:
Instance
- Enclosing class:
- InstanceFactory
private class InstanceFactory.ClassInstance extends java.lang.Object implements Instance
TheClassInstance
object is used to create an object by using aClass
to determine the type. If the given class can not be instantiated then this throws an exception when the instance is requested. For performance an instantiator is given as it contains a reflection cache for constructors.
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Constructor Summary
Constructors Constructor Description ClassInstance(java.lang.Class type)
Constructor for theClassInstance
object.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description java.lang.Object
getInstance()
This method is used to acquire an instance of the type that is defined by this object.java.lang.Class
getType()
This is the type of the object instance that will be created by thegetInstance
method.boolean
isReference()
This is used to determine if the type is a reference type.java.lang.Object
setInstance(java.lang.Object value)
This method is used acquire the value from the type and if possible replace the value for the type.
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Constructor Detail
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ClassInstance
public ClassInstance(java.lang.Class type)
Constructor for theClassInstance
object. This is used to create an instance of the specified type. If the given type can not be instantiated then an exception is thrown.- Parameters:
type
- this is the type that is to be instantiated
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Method Detail
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getInstance
public java.lang.Object getInstance() throws java.lang.Exception
This method is used to acquire an instance of the type that is defined by this object. If for some reason the type can not be instantiated an exception is thrown from this.- Specified by:
getInstance
in interfaceInstance
- Returns:
- an instance of the type this object represents
- Throws:
java.lang.Exception
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setInstance
public java.lang.Object setInstance(java.lang.Object value) throws java.lang.Exception
This method is used acquire the value from the type and if possible replace the value for the type. If the value can not be replaced then an exception should be thrown. This is used to allow primitives to be inserted into a graph.- Specified by:
setInstance
in interfaceInstance
- Parameters:
value
- this is the value to insert as the type- Returns:
- an instance of the type this object represents
- Throws:
java.lang.Exception
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getType
public java.lang.Class getType()
This is the type of the object instance that will be created by thegetInstance
method. This allows the deserialization process to perform checks against the field.
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isReference
public boolean isReference()
This is used to determine if the type is a reference type. A reference type is a type that does not require any XML deserialization based on its annotations. Values that are references could be substitutes objects or existing ones.- Specified by:
isReference
in interfaceInstance
- Returns:
- this returns true if the object is a reference
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