/**
* Adjusts the field list so that only the selected fields are read.
*
* @param readFunction
*/
private void setFieldList(JCoFunction readFunction) {
int length = 0;
JCoTable fields = readFunction.getTableParameterList().getTable("FIELDS"); // $NON-NLS-1$
fields.clear();
if (selectedFields.isEmpty()) {
for (final ITableField field : structure.getFieldList()) {
length += field.getLength();
fields.appendRow();
fields.setValue("FIELDNAME", field.getFieldName()); // $NON-NLS-1$
}
} else {
for (final String field : selectedFields) {
try {
length += structure.getField(field).getLength();
fields.appendRow();
fields.setValue("FIELDNAME", field); // $NON-NLS-1$
} catch (FieldNotFoundException e) {
throw new IllegalArgumentException(
MessageFormat.format(Messages.TableReader_UnknownField, field), e);
}
}
}
if (length > 512) {
throw new IllegalArgumentException(Messages.TableReader_ResultTooLong);
}
}
/**
* Executes RFC_READ_TABLE with a set of selection criteria specified as strings.
*
* @param selectionCriteria
* @return the contents read
* @throws JCoException
*/
public ITableContents read(String... selectionCriteria) throws JCoException {
JCoFunction readFunction = template.getFunction();
readFunction.getImportParameterList().setValue("QUERY_TABLE", tableName); // $NON-NLS-1$
JCoTable options = readFunction.getTableParameterList().getTable("OPTIONS"); // $NON-NLS-1$
options.clear();
if (selectionCriteria != null) {
for (final String criterion : selectionCriteria) {
if (criterion.length() > 72) {
throw new IllegalArgumentException(Messages.TableReader_SelectionCriteriaTooLong);
}
options.appendRow();
options.setValue("TEXT", criterion); // $NON-NLS-1$
}
}
setFieldList(readFunction);
readFunction.execute(destination);
return new TableContents(
tableName,
readFunction.getTableParameterList().getTable("FIELDS"), // $NON-NLS-1$
readFunction.getTableParameterList().getTable("DATA")); // $NON-NLS-1$
}
