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java.lang.Objectorg.apache.commons.jexl2.internal.AbstractExecutor
org.apache.commons.jexl2.internal.AbstractExecutor.Method
public abstract static class AbstractExecutor.Method
Abstract class that is used to execute an arbitrary method.
Nested Class Summary | |
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protected static class |
AbstractExecutor.Method.Parameter
A helper class to pass the method & parameters. |
Nested classes/interfaces inherited from class org.apache.commons.jexl2.internal.AbstractExecutor |
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AbstractExecutor.Get, AbstractExecutor.Method, AbstractExecutor.Set |
Field Summary | |
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protected MethodKey |
key
The method key discovered from the arguments. |
Fields inherited from class org.apache.commons.jexl2.internal.AbstractExecutor |
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method, objectClass, TRY_FAILED |
Constructor Summary | |
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protected |
AbstractExecutor.Method(java.lang.Class<?> c,
AbstractExecutor.Method.Parameter km)
Creates a new instance. |
Method Summary | |
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abstract java.lang.Object |
execute(java.lang.Object obj,
java.lang.Object[] args)
Invokes the method to be executed. |
java.lang.Class<?> |
getReturnType()
Returns the return type of the method invoked. |
java.lang.Object |
getTargetProperty()
Gets the property targeted by this executor. |
java.lang.Object |
invoke(java.lang.Object obj,
java.lang.Object[] params)
Invocation method, called when the method invocation should be performed and a value returned. |
java.lang.Object |
tryExecute(java.lang.String name,
java.lang.Object obj,
java.lang.Object[] args)
Tries to reuse this executor, checking that it is compatible with the actual set of arguments. |
java.lang.Object |
tryInvoke(java.lang.String name,
java.lang.Object obj,
java.lang.Object[] params)
Attempts to reuse this JexlMethod, checking that it is compatible with the actual set of arguments. |
Methods inherited from class org.apache.commons.jexl2.internal.AbstractExecutor |
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equals, equals, getMethod, getMethodName, getTargetClass, hashCode, isAlive, isCacheable, tryFailed |
Methods inherited from class java.lang.Object |
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clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait |
Methods inherited from interface org.apache.commons.jexl2.introspection.JexlMethod |
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isCacheable, tryFailed |
Field Detail |
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protected final MethodKey key
Constructor Detail |
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protected AbstractExecutor.Method(java.lang.Class<?> c, AbstractExecutor.Method.Parameter km)
c
- the class this executor applies tokm
- the method and MethodKey to encapsulate.Method Detail |
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public final java.lang.Object invoke(java.lang.Object obj, java.lang.Object[] params) throws java.lang.Exception
invoke
in interface JexlMethod
obj
- the objectparams
- method parameters.
java.lang.Exception
- on any error.public final java.lang.Object tryInvoke(java.lang.String name, java.lang.Object obj, java.lang.Object[] params)
tryInvoke
in interface JexlMethod
name
- the method nameobj
- the object to invoke the method uponparams
- the method arguments
public java.lang.Object getTargetProperty()
getTargetProperty
in class AbstractExecutor
public final java.lang.Class<?> getReturnType()
getReturnType
in interface JexlMethod
public abstract java.lang.Object execute(java.lang.Object obj, java.lang.Object[] args) throws java.lang.IllegalAccessException, java.lang.reflect.InvocationTargetException
obj
- the object to invoke the method uponargs
- the method arguments
java.lang.IllegalAccessException
- Method is inaccessible.
java.lang.reflect.InvocationTargetException
- Method body throws an exception.public java.lang.Object tryExecute(java.lang.String name, java.lang.Object obj, java.lang.Object[] args)
obj
- the object to invoke the method uponname
- the method nameargs
- the method arguments
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