public class ReflectivePropertyAccessor extends java.lang.Object implements PropertyAccessor
Modifier and Type | Class and Description |
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private static class |
ReflectivePropertyAccessor.CacheKey |
private static class |
ReflectivePropertyAccessor.InvokerPair
Captures the member (method/field) to call reflectively to access a property value
and the type descriptor for the value returned by the reflective call.
|
private static class |
ReflectivePropertyAccessor.OptimalPropertyAccessor
An optimized form of a PropertyAccessor that will use reflection but only knows
how to access a particular property on a particular class.
|
Modifier and Type | Field and Description |
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private java.util.Map<ReflectivePropertyAccessor.CacheKey,ReflectivePropertyAccessor.InvokerPair> |
readerCache |
private java.util.Map<ReflectivePropertyAccessor.CacheKey,TypeDescriptor> |
typeDescriptorCache |
private java.util.Map<ReflectivePropertyAccessor.CacheKey,java.lang.reflect.Member> |
writerCache |
Constructor and Description |
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ReflectivePropertyAccessor() |
Modifier and Type | Method and Description |
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boolean |
canRead(EvaluationContext context,
java.lang.Object target,
java.lang.String name)
Called to determine if a resolver instance is able to access a specified property on a specified target object.
|
boolean |
canWrite(EvaluationContext context,
java.lang.Object target,
java.lang.String name)
Called to determine if a resolver instance is able to write to a specified property on a specified target object.
|
PropertyAccessor |
createOptimalAccessor(EvaluationContext eContext,
java.lang.Object target,
java.lang.String name)
Attempt to create an optimized property accessor tailored for a property of a particular name on
a particular class.
|
protected java.lang.reflect.Field |
findField(java.lang.String name,
java.lang.Class<?> clazz,
boolean mustBeStatic)
Find a field of a certain name on a specified class
|
private java.lang.reflect.Field |
findField(java.lang.String name,
java.lang.Class<?> clazz,
java.lang.Object target) |
protected java.lang.reflect.Method |
findGetterForProperty(java.lang.String propertyName,
java.lang.Class<?> clazz,
boolean mustBeStatic)
Find a getter method for the specified property.
|
private java.lang.reflect.Method |
findGetterForProperty(java.lang.String propertyName,
java.lang.Class<?> clazz,
java.lang.Object target) |
protected java.lang.reflect.Method |
findSetterForProperty(java.lang.String propertyName,
java.lang.Class<?> clazz,
boolean mustBeStatic)
Find a setter method for the specified property.
|
private java.lang.reflect.Method |
findSetterForProperty(java.lang.String propertyName,
java.lang.Class<?> clazz,
java.lang.Object target) |
protected java.lang.String |
getPropertyMethodSuffix(java.lang.String propertyName) |
private java.lang.reflect.Method[] |
getSortedClassMethods(java.lang.Class<?> clazz)
Returns class methods ordered with non bridge methods appearing higher.
|
java.lang.Class<?>[] |
getSpecificTargetClasses()
Return an array of classes for which this resolver should be called.
|
private TypeDescriptor |
getTypeDescriptor(EvaluationContext context,
java.lang.Object target,
java.lang.String name) |
TypedValue |
read(EvaluationContext context,
java.lang.Object target,
java.lang.String name)
Called to read a property from a specified target object
|
void |
write(EvaluationContext context,
java.lang.Object target,
java.lang.String name,
java.lang.Object newValue)
Called to write to a property on a specified target object.
|
private final java.util.Map<ReflectivePropertyAccessor.CacheKey,ReflectivePropertyAccessor.InvokerPair> readerCache
private final java.util.Map<ReflectivePropertyAccessor.CacheKey,java.lang.reflect.Member> writerCache
private final java.util.Map<ReflectivePropertyAccessor.CacheKey,TypeDescriptor> typeDescriptorCache
public java.lang.Class<?>[] getSpecificTargetClasses()
PropertyAccessor
getSpecificTargetClasses
in interface PropertyAccessor
public boolean canRead(EvaluationContext context, java.lang.Object target, java.lang.String name) throws AccessException
PropertyAccessor
canRead
in interface PropertyAccessor
context
- the evaluation context in which the access is being attemptedtarget
- the target object upon which the property is being accessedname
- the name of the property being accessedAccessException
- if there is any problem determining whether the property can be readpublic TypedValue read(EvaluationContext context, java.lang.Object target, java.lang.String name) throws AccessException
PropertyAccessor
read
in interface PropertyAccessor
context
- the evaluation context in which the access is being attemptedtarget
- the target object upon which the property is being accessedname
- the name of the property being accessedAccessException
- if there is any problem accessing the property valuepublic boolean canWrite(EvaluationContext context, java.lang.Object target, java.lang.String name) throws AccessException
PropertyAccessor
canWrite
in interface PropertyAccessor
context
- the evaluation context in which the access is being attemptedtarget
- the target object upon which the property is being accessedname
- the name of the property being accessedAccessException
- if there is any problem determining whether the property can be written topublic void write(EvaluationContext context, java.lang.Object target, java.lang.String name, java.lang.Object newValue) throws AccessException
PropertyAccessor
write
in interface PropertyAccessor
context
- the evaluation context in which the access is being attemptedtarget
- the target object upon which the property is being accessedname
- the name of the property being accessednewValue
- the new value for the propertyAccessException
- if there is any problem writing to the property valueprivate TypeDescriptor getTypeDescriptor(EvaluationContext context, java.lang.Object target, java.lang.String name)
private java.lang.reflect.Method findGetterForProperty(java.lang.String propertyName, java.lang.Class<?> clazz, java.lang.Object target)
private java.lang.reflect.Method findSetterForProperty(java.lang.String propertyName, java.lang.Class<?> clazz, java.lang.Object target)
private java.lang.reflect.Field findField(java.lang.String name, java.lang.Class<?> clazz, java.lang.Object target)
protected java.lang.reflect.Method findGetterForProperty(java.lang.String propertyName, java.lang.Class<?> clazz, boolean mustBeStatic)
protected java.lang.reflect.Method findSetterForProperty(java.lang.String propertyName, java.lang.Class<?> clazz, boolean mustBeStatic)
private java.lang.reflect.Method[] getSortedClassMethods(java.lang.Class<?> clazz)
protected java.lang.String getPropertyMethodSuffix(java.lang.String propertyName)
protected java.lang.reflect.Field findField(java.lang.String name, java.lang.Class<?> clazz, boolean mustBeStatic)
public PropertyAccessor createOptimalAccessor(EvaluationContext eContext, java.lang.Object target, java.lang.String name)