| java.lang.Object
 org.conform.mdl.Statement
All known Subclasses: org.conform.mdl.Expression,
| Statement | | class Statement (Code) | | A Statement object represents a primitive statement
in which a single method is applied to a target and
a set of arguments - as in "a.setFoo(b)".
Note that where this example uses names
to denote the target and its argument, a statement
object does not require a name space and is constructed with
the values themselves.
The statement object associates the named method
with its environment as a simple set of values:
the target and an array of argument values.
since:
1.4
version:
1.18 01/23/03
author:
Philip Milne |
| Constructor Summary | |
| public | Statement(Object target, String methodName, Object[] arguments)
Creates a new Statement object with a target,
methodName and arguments as per the parameters. |
| Statement | | public Statement(Object target, String methodName, Object[] arguments)(Code) | | Creates a new Statement object with a target,
methodName and arguments as per the parameters.
Parameters:
target - The target of this statement.
Parameters:
methodName - The methodName of this statement.
Parameters:
arguments - The arguments of this statement. |
| execute | | public void execute() throws Exception(Code) | | The execute method finds a method whose name is the same
as the methodName property, and invokes the method on
the target.
When the target's class defines many methods with the given name
the implementation should choose the most specific method using
the algorithm specified in the Java Language Specification
(15.11). The dynamic class of the target and arguments are used
in place of the compile-time type information and, like the
java.lang.reflect.Method class itself, conversion between
primitive values and their associated wrapper classes is handled
internally.
The following method types are handled as special cases:
-
Static methods may be called by using a class object as the target.
-
The reserved method name "new" may be used to call a class's constructor
as if all classes defined static "new" methods. Constructor invocations
are typically considered
Expressions rather than Statements
as they return a value.
-
The method names "get" and "set" defined in the
java.util.List
interface may also be applied to array instances, mapping to
the static methods of the same name in the Array class.
|
| getArguments | | public Object[] getArguments()(Code) | | Returns the arguments of this statement.
the arguments of this statement. |
| getMethod | | static Method getMethod(Class targetClass, String methodName, Class[] argClasses)(Code) | | A wrapper to findMethod(), which will cache its results if
isCaching() returns true. See clear().
|
| getMethodName | | public String getMethodName()(Code) | | Returns the name of the method.
The name of the method. |
| getTarget | | public Object getTarget()(Code) | | Returns the target of this statement.
The target of this statement. |
| setCaching | | static void setCaching(boolean b)(Code) | | |
| toString | | public String toString()(Code) | | Prints the value of this statement using a Java-style syntax.
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