public StreamInterface findInfoStream(StepMeta infoStep) {
for (StreamInterface stream : getInfoStreams()) {
if (infoStep.equals(stream.getStepMeta())) {
return stream;
}
}
return null;
}
public StreamInterface findTargetStream(StepMeta targetStep) {
for (StreamInterface stream : getTargetStreams()) {
if (targetStep.equals(stream.getStepMeta())) {
return stream;
}
}
return null;
}
/**
* Standard method to return one or more SQLStatement objects that the step needs in order to work
* correctly. This can mean "create table", "create index" statements but also "alter table ...
* add/drop/modify" statements.
*
* @return The SQL Statements for this step or null if an error occurred. If nothing has to be
* done, the SQLStatement.getSQL() == null.
* @param transMeta TransInfo object containing the complete transformation
* @param stepMeta StepMeta object containing the complete step
* @param prev Row containing meta-data for the input fields (no data)
*/
public SQLStatement getSQLStatements(
TransMeta transMeta, StepMeta stepMeta, RowMetaInterface prev) throws KettleStepException {
// default: this doesn't require any SQL statements to be executed!
return new SQLStatement(stepMeta.getName(), null, null);
}