private Object isPartOfUniqueConstraintKey(EColumn owner) {
for (EReferenceConstraint refConstraint : owner.getReferencingConstraints())
if (refConstraint instanceof EUniqueConstraint) return true;
return false;
}
private boolean isPrimaryKey(EColumn owner) {
for (EReferenceConstraint refConstraint : owner.getReferencingConstraints())
if (refConstraint instanceof EPrimaryKey) return true;
return false;
}
private boolean isPartOfForeingKey(EColumn owner) {
for (EReferenceConstraint refConstraint : owner.getReferencingConstraints())
if (refConstraint instanceof EForeignKey) return true;
return false;
}
private void setPrimaryKey(EColumn owner, boolean newValue) {
boolean oldValue = isPrimaryKey(owner);
if (oldValue == newValue) return;
EBaseTable baseTable = (EBaseTable) owner.getTable();
EPrimaryKey pk = baseTable.getPrimaryKey();
if (newValue) {
if (pk == null) {
pk = EConstraintsFactory.eINSTANCE.createPrimaryKey();
baseTable.getConstraints().add(pk);
}
if (!pk.getMembers().contains(owner)) pk.getMembers().add(owner);
} else if (pk != null) {
if (pk.getMembers().contains(owner)) pk.getMembers().remove(owner);
}
}
private ETable getTable(EColumn column) {
return (ETable) column.eContainer();
}