public class EnvironmentAccessor extends Object implements PropertyAccessor
Environment
instance.Constructor and Description |
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EnvironmentAccessor() |
Modifier and Type | Method and Description |
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boolean |
canRead(EvaluationContext context,
Object target,
String name)
Can read any
Environment , thus always returns true. |
boolean |
canWrite(EvaluationContext context,
Object target,
String name)
Read-only: returns
false . |
Class<?>[] |
getSpecificTargetClasses()
Return an array of classes for which this resolver should be called.
|
TypedValue |
read(EvaluationContext context,
Object target,
String name)
Access the given target object by resolving the given property name against the given target
environment.
|
void |
write(EvaluationContext context,
Object target,
String name,
Object newValue)
Read-only: no-op.
|
public Class<?>[] getSpecificTargetClasses()
PropertyAccessor
Returning null
indicates this is a general resolver that
can be called in an attempt to resolve a property on any type.
getSpecificTargetClasses
in interface PropertyAccessor
null
if a general resolver)public boolean canRead(EvaluationContext context, @Nullable Object target, String name) throws AccessException
Environment
, thus always returns true.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, @Nullable Object target, String name) throws AccessException
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, @Nullable Object target, String name) throws AccessException
false
.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, @Nullable Object target, String name, @Nullable Object newValue) throws AccessException
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 value