Class DuckSetExecutor
java.lang.Object
org.apache.commons.jexl3.internal.introspection.AbstractExecutor
org.apache.commons.jexl3.internal.introspection.AbstractExecutor.Set
org.apache.commons.jexl3.internal.introspection.DuckSetExecutor
- All Implemented Interfaces:
JexlPropertySet
Specialized executor to set a property of an object.
Duck as in duck-typing for an interface like:
interface Setable {
Object set(Object property, Object value);
}
or
interface Putable {
Object put(Object property, Object value);
}
- Since:
- 2.0
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Nested Class Summary
Nested classes/interfaces inherited from class org.apache.commons.jexl3.internal.introspection.AbstractExecutor
AbstractExecutor.Get, AbstractExecutor.Method, AbstractExecutor.Set
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Field Summary
FieldsModifier and TypeFieldDescriptionprivate final Object
The property, may be null.private final Class<?>
The property value class.Fields inherited from class org.apache.commons.jexl3.internal.introspection.AbstractExecutor
method, objectClass, TRY_FAILED
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Constructor Summary
ConstructorsModifierConstructorDescriptionprivate
DuckSetExecutor
(Class<?> clazz, Method method, Object key, Object value) Creates an instance. -
Method Summary
Modifier and TypeMethodDescriptionstatic DuckSetExecutor
discover
(Introspector is, Class<?> clazz, Object key, Object value) Discovers a DuckSetExecutor.Gets the property targeted by this executor.Method used to set the property value of an object.Attempts to reuse this JexlPropertySet, checking that it is compatible with the actual set of arguments.Methods inherited from class org.apache.commons.jexl3.internal.introspection.AbstractExecutor
castInteger, castString, classOf, equals, equals, getMethod, getMethodName, getTargetClass, hashCode, initMarker, isAlive, isCacheable, makeArgs, tryFailed
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait
Methods inherited from interface org.apache.commons.jexl3.introspection.JexlPropertySet
isCacheable, tryFailed
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Field Details
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property
The property, may be null. -
valueClass
The property value class.
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Constructor Details
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DuckSetExecutor
Creates an instance.- Parameters:
clazz
- the class the set method applies tomethod
- the method called through this executorkey
- the key to use as 1st argument to the set methodvalue
- the value to use as 2nd argument to the set method
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Method Details
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discover
Discovers a DuckSetExecutor.- Parameters:
is
- the introspectorclazz
- the class to find the set method fromkey
- the key to use as 1st argument to the set methodvalue
- the value to use as 2nd argument to the set method- Returns:
- the executor if found, null otherwise
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getTargetProperty
Description copied from class:AbstractExecutor
Gets the property targeted by this executor.- Overrides:
getTargetProperty
in classAbstractExecutor
- Returns:
- the target property
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invoke
public Object invoke(Object obj, Object value) throws IllegalAccessException, InvocationTargetException Description copied from interface:JexlPropertySet
Method used to set the property value of an object.- Parameters:
obj
- Object on which the property setter will be called with the valuevalue
- value to be set- Returns:
- the value returned from the set operation (impl specific)
- Throws:
IllegalAccessException
InvocationTargetException
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tryInvoke
Description copied from interface:JexlPropertySet
Attempts to reuse this JexlPropertySet, checking that it is compatible with the actual set of arguments.- Parameters:
obj
- the object to invoke the get uponkey
- the property key to getvalue
- the property value to set- Returns:
- the result of the method invocation that should be checked by tryFailed to determine if it succeeded or failed.
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