Package pyxb :: Package binding :: Module content :: Class ContentModelTransition

Class ContentModelTransition

object --+    
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   cscRoot --+
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            ContentModelTransition

Represents a transition in the content model DFA.

If the next object in the DOM model conforms to the specified term, it is consumed and the specified next state is entered.

Instance Methods

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term(self)
The matching term for this transition to succeed.

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currentStateRef(self)

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_currentStateRef(self, current_state_ref)

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nextState(self)
The next state in the DFA

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elementUse(self)

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termType(self)

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__init__(self, next_state, element_use=None, term=None)
Create a transition to a new state upon receipt of a term, storing the successful match using the provided ElementUse.

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__cmp__(self, other)
Sort transitions so elements precede model groups precede wildcards.

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__processElementTransition(self, value, element_use)

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__validateConsume(self, key, available_symbols_im, output_sequence_im, candidates)

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validate(self, available_symbols_im, output_sequence_im, candidates)
Determine whether it is possible to take this transition using the available symbols.

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allowsEpsilonTransition(self)
Determine whether it is possible to take this transition without consuming any symbols.

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attemptTransition(self, ctd_instance, value, element_use, dfa_stack)
Attempt to make the appropriate transition.

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Inherited from object: __delattr__, __getattribute__, __hash__, __new__, __reduce__, __reduce_ex__, __repr__, __setattr__, __str__

Class Variables

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__term = None

__currentStateRef = None

__nextState = None

__elementUse = None

TT_element = 1

TT_modelGroupAll = 2

TT_wildcard = 3

__termType = None

Properties

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Inherited from object: __class__

Method Details

[hide private]

init(self, next_state, element_use=None, term=None)
(Constructor)

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Create a transition to a new state upon receipt of a term, storing the successful match using the provided ElementUse.

Overrides: object.__init__

cmp(self, other)
(Comparison operator)

source code

Sort transitions so elements precede model groups precede wildcards. Also sort within each subsequence.

validate(self, available_symbols_im, output_sequence_im, candidates)

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Determine whether it is possible to take this transition using the available symbols.

Parameters:

available_symbols_im - As with ContentModel.validate. The map will not be modified by this method.
output_sequence_im - As with the return value of ContentModel.validate. The sequence will not be modified by this event (it is used as a prefix for new candidates).
candidates - A list of candidate validation paths.

Returns:

True iff the transition could be made.

allowsEpsilonTransition(self)

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Determine whether it is possible to take this transition without consuming any symbols.

This is only possible if this is a transition to a final state using an "all" model group for which every alternative is effectively optional.

attemptTransition(self, ctd_instance, value, element_use, dfa_stack)

source code

Attempt to make the appropriate transition.

Parameters:

ctd_instance (basis.complexTypeDefinition) - The binding instance for which we are attempting to set values by walking the content model.
value (xml.dom.Node or basis._TypeBinding_mixin) - The potential value that would be consumed if this transition can be made.
dfa_stack (DFAStack) - The current state of processing this and enclosing content models.

Returns:

True iff value is acceptable for this transition

Class ContentModelTransition

__init__(self, next_state, element_use=None, term=None) (Constructor)

__cmp__(self, other) (Comparison operator)

validate(self, available_symbols_im, output_sequence_im, candidates)

allowsEpsilonTransition(self)

attemptTransition(self, ctd_instance, value, element_use, dfa_stack)

init(self, next_state, element_use=None, term=None)
(Constructor)

cmp(self, other)
(Comparison operator)