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The following API in the LetterService is used to retrieve
data elements: public Map<String,List> getLetterDataElements(String letterID) throws ICCException;
This API returns a map having three string keys DDE, PH and Field. DDE is mapped with a list of DDEs ( List<DataDictionaryElement> ) for
this letter. This list includes all DDEs used in this letter as
variable and all other required DDEs.
For differentiating
Collection DDEs, a collection marker "[]" is used
in the path of DDE. For example, if the DDE person has account as
collection which has composite accNumber, then
path is set as person.account[].accNumber. Where
"[]" indicates that account is of
type collection.
PH is mapped with a list of Variables ( List<Variable>)
which are used in a letter and for which data is required. Any PH
variables which are bound as "Literal" or "Variable" or "Field"
or "Content" or "Data Dictionary (protected)" are not added to this
list. All place-holder variables having following binding in this
letter are added to this list:
Field is mapped with a list of Fields object ( List<Field>)
which are used in this letter and for which data is required. Any
Field which are bound as "Literal" or "Variable" or "Content" or
"Ignore" or "Data Dictionary (protected)" are not added to this
list. All fields having following binding in this letter are added
to this list:
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