The BasicLibrary stereotype identifies a Library part that
contains EGL-written functions and values for runtime use in other
EGL logic parts.
The following rules apply to a BasicLibrary:
- Any main logic part (Program, Service, Handler, or another Library)
can reference the functions, variables, and constants of a Library
without specifying the Library name if that logic part includes the
Library in a use statement.
- Library functions cannot include the following statements:
- converse
- display
- forward
- show
- transfer
- You can use the private modifier on
a function, variable, or constant declaration to keep the element
from being used outside of the Library. You might do this when the
element is used only by a function within the Library.
- Public Library functions (the default) are available outside of
the Library and cannot have loose type parameters. A loose type is
a special case of primitive type that is available only if you want
the parameter to accept a range of argument lengths. For more information,
see Loose types.
The following example shows a BasicLibrary part:
package com.companyb.customer;
Record CustomerRecord type SQLRecord
customerNumber CHAR(6);
customerName CHAR(25);
customerBalance BIN(9,2);
end
Library CustomerLibrary type BasicLibrary
// Function Declarations
function getCustomerName(
myCustomerNumber CHAR(6) in,
myCustomerName CHAR(25) inOut)
myCustomer CustomerRecord;
myCustomer.customerNumber = myCustomerNumber;
get myCustomer;
myCustomerName = myCustomer.customerName;
end
end