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java.lang.Objectorg.apache.commons.jexl3.internal.introspection.IndexedType
public final class IndexedType
Abstract an indexed property container.
This allows getting properties from expressions like var.container.property
.
This stores the container name and class as well as the list of available getter and setter methods.
It implements JexlPropertyGet since such a container can only be accessed from its owning instance (not set).
Nested Class Summary | |
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static class |
IndexedType.IndexedContainer
A generic indexed property container, exposes get(key) and set(key, value) and solves method call dynamically based on arguments. |
Method Summary | |
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static JexlPropertyGet |
discover(Introspector is,
Object object,
String name)
Attempts to find an indexed-property getter in an object. |
Object |
invoke(Object obj)
Method used to get the property value of an object. |
boolean |
isCacheable()
Specifies if this JexlPropertyGet is cacheable and able to be reused for this class of object it was returned for. |
boolean |
tryFailed(Object rval)
Checks whether a tryInvoke failed or not. |
Object |
tryInvoke(Object obj,
Object key)
Attempts to reuse this JexlPropertyGet, checking that it is compatible with the actual set of arguments. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Method Detail |
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public static JexlPropertyGet discover(Introspector is, Object object, String name)
is
- the introspectorobject
- the objectname
- the container name
public Object invoke(Object obj) throws Exception
JexlPropertyGet
invoke
in interface JexlPropertyGet
obj
- the object to get the property value from.
Exception
- on any error.public Object tryInvoke(Object obj, Object key)
JexlPropertyGet
tryInvoke
in interface JexlPropertyGet
obj
- the object to invoke the property get uponkey
- the property key to get
public boolean tryFailed(Object rval)
JexlPropertyGet
tryFailed
in interface JexlPropertyGet
rval
- the value returned by tryInvoke
public boolean isCacheable()
JexlPropertyGet
isCacheable
in interface JexlPropertyGet
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