/**
* Get the meta data
*
* @param meta
*/
private void getMeta(MultiMergeJoinMeta meta) {
StepIOMetaInterface stepIOMeta = meta.getStepIOMeta();
List<StreamInterface> infoStreams = stepIOMeta.getInfoStreams();
StreamInterface stream;
String streamDescription;
ArrayList<String> inputStepNameList = new ArrayList<String>();
ArrayList<String> keyList = new ArrayList<String>();
CCombo wInputStep;
String inputStepName;
for (int i = 0; i < wInputStepArray.length; i++) {
wInputStep = wInputStepArray[i];
inputStepName = wInputStep.getText();
if (Const.isEmpty(inputStepName)) {
continue;
}
inputStepNameList.add(inputStepName);
keyList.add(keyValTextBox[i].getText());
if (infoStreams.size() < inputStepNameList.size()) {
streamDescription = BaseMessages.getString(PKG, "MultiMergeJoin.InfoStream.Description");
stream = new Stream(StreamType.INFO, null, streamDescription, StreamIcon.INFO, null);
stepIOMeta.addStream(stream);
}
}
int inputStepCount = inputStepNameList.size();
meta.allocateInputSteps(inputStepCount);
meta.allocateKeys(inputStepCount);
String[] inputSteps = meta.getInputSteps();
String[] keyFields = meta.getKeyFields();
infoStreams = stepIOMeta.getInfoStreams();
for (int i = 0; i < inputStepCount; i++) {
inputStepName = inputStepNameList.get(i);
inputSteps[i] = inputStepName;
stream = infoStreams.get(i);
stream.setStepMeta(transMeta.findStep(inputStepName));
keyFields[i] = keyList.get(i);
}
meta.setJoinType(joinTypeCombo.getText());
}
/** Copy information from the meta-data input to the dialog fields. */
public void getData() {
String[] inputStepNames = joinMeta.getInputSteps();
if (inputStepNames != null) {
String inputStepName;
String[] keyFields = joinMeta.getKeyFields();
String keyField;
for (int i = 0; i < inputStepNames.length; i++) {
inputStepName = Const.NVL(inputStepNames[i], "");
wInputStepArray[i].setText(inputStepName);
keyField = Const.NVL(keyFields[i], "");
keyValTextBox[i].setText(keyField);
}
String joinType = joinMeta.getJoinType();
if (joinType != null && joinType.length() > 0) {
joinTypeCombo.setText(joinType);
} else {
joinTypeCombo.setText(MultiMergeJoinMeta.join_types[0]);
}
}
wStepname.selectAll();
wStepname.setFocus();
}