public class ReflectivePropertyAccessor extends Object implements PropertyAccessor
PropertyAccessor that uses reflection to access properties
for reading and writing.
A property can be accessed through a public getter method (when being read) or a public setter method (when being written), and also as a public field.
| Modifier and Type | Class and Description |
|---|---|
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.
|
| Constructor and Description |
|---|
ReflectivePropertyAccessor() |
| Modifier and Type | Method and Description |
|---|---|
boolean |
canRead(EvaluationContext context,
Object target,
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,
Object target,
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 evalContext,
Object target,
String name)
Attempt to create an optimized property accessor tailored for a property of a particular name on
a particular class.
|
protected Field |
findField(String name,
Class<?> clazz,
boolean mustBeStatic)
Find a field of a certain name on a specified class.
|
protected Method |
findGetterForProperty(String propertyName,
Class<?> clazz,
boolean mustBeStatic)
Find a getter method for the specified property.
|
protected Method |
findSetterForProperty(String propertyName,
Class<?> clazz,
boolean mustBeStatic)
Find a setter method for the specified property.
|
Member |
getLastReadInvokerPair() |
protected String |
getPropertyMethodSuffix(String propertyName)
Return the method suffix for a given property name.
|
protected String[] |
getPropertyMethodSuffixes(String propertyName)
Return the method suffixes for a given property name.
|
Class<?>[] |
getSpecificTargetClasses()
Returns
null which means this is a general purpose accessor. |
TypedValue |
read(EvaluationContext context,
Object target,
String name)
Called to read a property from a specified target object.
|
void |
write(EvaluationContext context,
Object target,
String name,
Object newValue)
Called to write to a property on a specified target object.
|
public Class<?>[] getSpecificTargetClasses()
null which means this is a general purpose accessor.getSpecificTargetClasses in interface PropertyAccessornull if a general resolver)public boolean canRead(EvaluationContext context, Object target, String name) throws AccessException
PropertyAccessorcanRead in interface PropertyAccessorcontext - 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 Member getLastReadInvokerPair()
public TypedValue read(EvaluationContext context, Object target, String name) throws AccessException
PropertyAccessorPropertyAccessor.canRead(org.springframework.expression.EvaluationContext, java.lang.Object, java.lang.String) also returns true.read in interface PropertyAccessorcontext - 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, Object target, String name) throws AccessException
PropertyAccessorcanWrite in interface PropertyAccessorcontext - 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, Object target, String name, Object newValue) throws AccessException
PropertyAccessorPropertyAccessor.canWrite(org.springframework.expression.EvaluationContext, java.lang.Object, java.lang.String) also returns true.write in interface PropertyAccessorcontext - 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 valueprotected Method findGetterForProperty(String propertyName, Class<?> clazz, boolean mustBeStatic)
protected Method findSetterForProperty(String propertyName, Class<?> clazz, boolean mustBeStatic)
protected String[] getPropertyMethodSuffixes(String propertyName)
protected String getPropertyMethodSuffix(String propertyName)
protected Field findField(String name, Class<?> clazz, boolean mustBeStatic)
public PropertyAccessor createOptimalAccessor(EvaluationContext evalContext, Object target, String name)