How to use

supportsGroupBy

method

in

org.teiid.translator.ExecutionFactory

/**
 * Whether the source supports grouping with multiple distinct aggregates
 * @return
 */
public boolean supportsGroupByMultipleDistinctAggregates() {
  return supportsGroupBy();
}

tgtCaps.setCapabilitySupport(Capability.QUERY_FROM_ANSI_JOIN, srcCaps.useAnsiJoin());
tgtCaps.setCapabilitySupport(Capability.REQUIRES_CRITERIA, srcCaps.requiresCriteria());
tgtCaps.setCapabilitySupport(Capability.QUERY_GROUP_BY, srcCaps.supportsGroupBy());
tgtCaps.setCapabilitySupport(Capability.QUERY_ONLY_SINGLE_TABLE_GROUP_BY, srcCaps.supportsOnlySingleTableGroupBy());
tgtCaps.setCapabilitySupport(Capability.QUERY_HAVING, srcCaps.supportsHaving());
  Assertion.assertTrue(!srcCaps.supportsUnions());
  Assertion.assertTrue(!srcCaps.supportsSelectDistinct());
  Assertion.assertTrue(!srcCaps.supportsGroupBy());

tgtCaps.setCapabilitySupport(Capability.QUERY_FROM_ANSI_JOIN, srcCaps.useAnsiJoin());
tgtCaps.setCapabilitySupport(Capability.REQUIRES_CRITERIA, srcCaps.requiresCriteria());
tgtCaps.setCapabilitySupport(Capability.QUERY_GROUP_BY, srcCaps.supportsGroupBy());
tgtCaps.setCapabilitySupport(Capability.QUERY_ONLY_SINGLE_TABLE_GROUP_BY, srcCaps.supportsOnlySingleTableGroupBy());
tgtCaps.setCapabilitySupport(Capability.QUERY_HAVING, srcCaps.supportsHaving());
  Assertion.assertTrue(!srcCaps.supportsUnions());
  Assertion.assertTrue(!srcCaps.supportsSelectDistinct());
  Assertion.assertTrue(!srcCaps.supportsGroupBy());

@TranslatorProperty(display="Supports GROUP BY", advanced=true)
@Override
public boolean supportsGroupBy() {
  if (supportsGroupBy != null) {
    return supportsGroupBy;
  }
  return delegate.supportsGroupBy();
}
public void setSupportsGroupBy(boolean value) {

tgtCaps.setCapabilitySupport(Capability.QUERY_FROM_ANSI_JOIN, srcCaps.useAnsiJoin());
tgtCaps.setCapabilitySupport(Capability.REQUIRES_CRITERIA, srcCaps.requiresCriteria());
tgtCaps.setCapabilitySupport(Capability.QUERY_GROUP_BY, srcCaps.supportsGroupBy());
tgtCaps.setCapabilitySupport(Capability.QUERY_ONLY_SINGLE_TABLE_GROUP_BY, srcCaps.supportsOnlySingleTableGroupBy());
tgtCaps.setCapabilitySupport(Capability.QUERY_HAVING, srcCaps.supportsHaving());
  Assertion.assertTrue(!srcCaps.supportsUnions());
  Assertion.assertTrue(!srcCaps.supportsSelectDistinct());
  Assertion.assertTrue(!srcCaps.supportsGroupBy());