WSDL Interface (ADT)

Author(s): Per Cederberg.

This module provides an interface to the WSDL data, evaluating delayed queries as necessary. The actual implementation of the WSDL data structure is hidden, making it an abstract data type. The interface provides for all the basic needs of access.

The WSDL data is a tree structure with nodes of various types, having any number of children. The child nodes may be new WSDL node in the tree or the actual data.

In the current implementation the interface to the WOF modules is a mock-up really interfacing a specialized module producing WSDL data from a prolog database.

• Usage and interface (wsdl)
• Documentation on exports (wsdl)

Usage and interface (wsdl)

Documentation on exports (wsdl)

PREDICATE: env2wsdl/3:

Usage 1: env2wsdl(+Env,-(ID),-(WSDLTerm))

• Description: Converts a PiLLoW Env into a WSDLTerm if possible, i.e. if it is a <rw> environment, otherwise the predicates fails. The predicate will also return the object ID as a string.

Usage 2: env2wsdl(-(Env),+ID,+WSDLTerm)

• Description: Converts a WSDLTerm into a valid PiLLoW Env. The object ID has to be given.

PREDICATE: wsdl_type/2:

Usage: wsdl_type(+WSDLTerm,-(Type))

• Description: Returns the Type of the WSDLTerm. The Type name will be given as an atom.

PREDICATE: wsdl_attributes/2:

Usage: wsdl_attributes(+WSDLTerm,-(AttributeLs))

• Description: Returns the AttributeLs of the WSDLTerm. The AttributeLs is a list of terms Name=Value.

PREDICATE: wsdl_data/2:

Usage: wsdl_data(WSDLTerm,-(DataLs))

• Description: Returns a DataLs containing all the data in the WSDLTerm and it's subterms, removing the actual WSDL structure.

PREDICATE: wsdl_child/3:

Usage: wsdl_child(?(Nth),+WSDLTerm,-(Child))

• Description: Returns the Nth Child of the WSDLTerm. If the number Nth is variable, the predicate returns all children upon backtracking. The numbering is just like nth/2 in the lists module. Note that the node data will be returned as a child.

PREDICATE: wsdl_children/2:

Usage: wsdl_children(+WSDLTerm,-(ChildLs))

• Description: Returns a ChildLs (a list of all the children) of the WSDLTerm. Note that the node data will be returned in the ChildLs.

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