Purpose |
This page describes the special objects that are used in the Superx++ language. These objects can be accessed and manipulated just like any other Superx++ object. This page also describes the accessor statements used to get the entire objects as well.
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Accessor Statements |
getclasses |
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getclasses is a statement used to get the entire classes object.
getclasses
will get the entire classes object and is the equivalent of:
classes
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getexception |
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getexception is a statement used to get the entire exception object.
getexception
will get the entire exception object and is the equivalent of:
exception
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getmem |
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getmem is a statement used to get the entire mem object.
getmem
will get the entire mem object and is the equivalent of:
mem
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getxin |
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getxin is a statement used to get the entire xin object.
getxin
will get the entire xin object and is the equivalent of:
xin
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getxpp |
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getxpp is a statement used to get the entire xpp object.
getxpp
will get the entire xpp object and is the equivalent of:
xpp
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Special Objects |
classes |
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classes represents the run-time class memory.
classes
will get the object tree of all the currently defined classes.
<eval object="classes" member="child">
<parm type="int">2</parm>
</eval>
will get the 3rd class defined in the classes object tree.
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exception |
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exception represents the last exception that was raised in the Superx++ program.
exception
will get the entire exception object.
<eval object="exception/type" />
will get the type of the exception.
<eval object="exception/description" />
will get the description of the exception.
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mem |
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mem represents the run-time memory which contains all the instantiated objects.
mem
will get the object tree of all the currently instantiated objects.
<eval object="mem" member="child">
<parm type="int">2</parm>
</eval>
will get the 3rd object instantiated in the memory object tree.
<eval object="mem/MyEmployee" />
will get the MyEmployee object as a child node from the memory object.
<eval object="mem/MyEmployee">
<Personal>
<Name>Joe</Name>
<ID>12345</ID>
</Personal>
</eval>
will modify the MyEmployee object by giving it the Personal child node.
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xin |
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xin represents the input stream which contains the XML document to be passed as a hierarchical set of input parameters into a Superx++ program.
xin
will get the entire exception object.
<eval object="xin/MyParm" />
will get the MyParm object within the input stream.
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xpp |
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xpp represents the Superx++ program as currently defined in memory. It is useful in the cases where a program is modified and therefore is different in memory than in the source files.
xpp
will get the entire xpp object.
<eval object="xpp" member="child">
<parm type="int">2</parm>
</eval>
will get the 3rd object within the xpp object-- i.e. the 3rd statement in the program.
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