Class AbstractExecutor.Set
- java.lang.Object
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- org.apache.commons.jexl2.internal.AbstractExecutor
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- org.apache.commons.jexl2.internal.AbstractExecutor.Set
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- All Implemented Interfaces:
JexlPropertySet
- Direct Known Subclasses:
DuckSetExecutor
,ListSetExecutor
,MapSetExecutor
,PropertySetExecutor
- Enclosing class:
- AbstractExecutor
public abstract static class AbstractExecutor.Set extends AbstractExecutor implements JexlPropertySet
Abstract class that is used to execute an arbitrary 'set' method.
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Nested Class Summary
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Nested classes/interfaces inherited from class org.apache.commons.jexl2.internal.AbstractExecutor
AbstractExecutor.Get, AbstractExecutor.Method, AbstractExecutor.Set
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Field Summary
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Fields inherited from class org.apache.commons.jexl2.internal.AbstractExecutor
method, objectClass, TRY_FAILED
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Constructor Summary
Constructors Modifier Constructor Description protected
Set(java.lang.Class<?> theClass, java.lang.reflect.Method theMethod)
Default and sole constructor.
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Method Summary
All Methods Instance Methods Abstract Methods Concrete Methods Modifier and Type Method Description abstract java.lang.Object
execute(java.lang.Object obj, java.lang.Object value)
Sets the property value of an object.java.lang.Object
invoke(java.lang.Object obj, java.lang.Object arg)
Method used to set the property value of an object.java.lang.Object
tryExecute(java.lang.Object obj, java.lang.Object key, java.lang.Object value)
Tries to reuse this executor, checking that it is compatible with the actual set of arguments.java.lang.Object
tryInvoke(java.lang.Object obj, java.lang.Object key, java.lang.Object value)
Attempts to reuse this JexlPropertySet, checking that it is compatible with the actual set of arguments.-
Methods inherited from class org.apache.commons.jexl2.internal.AbstractExecutor
equals, equals, getMethod, getMethodName, getTargetClass, getTargetProperty, hashCode, isAlive, isCacheable, tryFailed
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Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface org.apache.commons.jexl2.introspection.JexlPropertySet
isCacheable, tryFailed
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Constructor Detail
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Set
protected Set(java.lang.Class<?> theClass, java.lang.reflect.Method theMethod)
Default and sole constructor.- Parameters:
theClass
- the class this executor applies totheMethod
- the method held by this executor
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Method Detail
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invoke
public final java.lang.Object invoke(java.lang.Object obj, java.lang.Object arg) throws java.lang.Exception
Method used to set the property value of an object.- Specified by:
invoke
in interfaceJexlPropertySet
- Parameters:
obj
- Object on which the property setter will be called with the valuearg
- value to be set- Returns:
- the value returned from the set operation (impl specific)
- Throws:
java.lang.Exception
- on any error.
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tryInvoke
public final java.lang.Object tryInvoke(java.lang.Object obj, java.lang.Object key, java.lang.Object value)
Attempts to reuse this JexlPropertySet, checking that it is compatible with the actual set of arguments.- Specified by:
tryInvoke
in interfaceJexlPropertySet
- Parameters:
obj
- the object to invoke the 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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execute
public abstract java.lang.Object execute(java.lang.Object obj, java.lang.Object value) throws java.lang.IllegalAccessException, java.lang.reflect.InvocationTargetException
Sets the property value of an object.- Parameters:
obj
- The object to set the property in.value
- The value.- Returns:
- The return value.
- Throws:
java.lang.IllegalAccessException
- Method is inaccessible.java.lang.reflect.InvocationTargetException
- Method body throws an exception.
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tryExecute
public java.lang.Object tryExecute(java.lang.Object obj, java.lang.Object key, java.lang.Object value)
Tries to reuse this executor, checking that it is compatible with the actual set of arguments.Compatibility means that:
o
must be of the same class as this executor's target class,property
must be of the same class as this executor's target property (for list and map based executors) and have the same value (for other types) and thatarg
must be a valid argument for this executor underlying method.- Parameters:
obj
- The object to invoke the method from.key
- The property to set in the object.value
- The value to use as the property value.- Returns:
- The return value or TRY_FAILED if checking failed.
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