@Override
public void visit(ExpressionList el) {
for (Iterator iter = el.getExpressions().iterator(); iter.hasNext(); ) {
Expression expression = (Expression) iter.next();
expression.accept(this);
}
}
public void visit(CaseExpression caseExpression) throws Exception {
if (caseExpression.getSwitchExpression() != null) {
caseExpression.getSwitchExpression().accept(this);
}
if (caseExpression.getWhenClauses() != null) {
for (Expression exp : caseExpression.getWhenClauses()) {
exp.accept(this);
}
}
if (caseExpression.getElseExpression() != null) {
caseExpression.getElseExpression().accept(this);
}
}
/** @brief The following functions override functions of the interfaces. */
public void visit(PlainSelect plainSelect) throws Exception {
if (plainSelect.getFromItem() != null) {
if (plainSelect.getFromItem().getAlias() != null) {
this.aliasTableNameList.add(plainSelect.getFromItem().getAlias().getName());
}
plainSelect.getFromItem().accept(this);
}
if (plainSelect.getJoins() != null) {
for (Iterator joinsIt = plainSelect.getJoins().iterator(); joinsIt.hasNext(); ) {
Join join = (Join) joinsIt.next();
if (join.getRightItem().getAlias() != null) {
this.aliasTableNameList.add(join.getRightItem().getAlias().getName());
}
if (join.getOnExpression() != null) {
join.getOnExpression().accept(this);
}
join.getRightItem().accept(this);
}
}
// Select selectItem From fromItem, joinItem Where whereClause.
if (plainSelect.getSelectItems() != null) {
for (SelectItem selectItem : plainSelect.getSelectItems()) {
selectItem.accept(this);
}
}
if (plainSelect.getWhere() != null) {
plainSelect.getWhere().accept(this);
}
if (plainSelect.getGroupByColumnReferences() != null) {
for (Iterator groupByIt = plainSelect.getGroupByColumnReferences().iterator();
groupByIt.hasNext(); ) {
Expression groupBy = (Expression) groupByIt.next();
groupBy.accept(this);
}
}
if (plainSelect.getClusterByElements() != null) {
for (Iterator clusterByit = plainSelect.getClusterByElements().iterator();
clusterByit.hasNext(); ) {
ClusterByElement clusterByElement = (ClusterByElement) clusterByit.next();
visit(clusterByElement);
}
}
if (plainSelect.getDistributeByElements() != null) {
for (Iterator distributeByIt = plainSelect.getDistributeByElements().iterator();
distributeByIt.hasNext(); ) {
DistributeByElement distributeByElement = (DistributeByElement) distributeByIt.next();
visit(distributeByElement);
}
}
if (plainSelect.getOrderByElements() != null) {
for (Iterator orderByIt = plainSelect.getOrderByElements().iterator();
orderByIt.hasNext(); ) {
OrderByElement orderByElement = (OrderByElement) orderByIt.next();
orderByElement.accept(this);
}
}
if (plainSelect.getSortByElements() != null) {
for (Iterator sortByIt = plainSelect.getSortByElements().iterator(); sortByIt.hasNext(); ) {
SortByElement sortByElement = (SortByElement) sortByIt.next();
visit(sortByElement);
}
}
if (plainSelect.getHaving() != null) {
plainSelect.getHaving().accept(this);
}
}
public void visit(ExpressionList expressionList) throws Exception {
for (Iterator iter = expressionList.getExpressions().iterator(); iter.hasNext(); ) {
Expression expression = (Expression) iter.next();
expression.accept(this);
}
}
public void visit(Function function) throws Exception {
if (function.getParameters() == null) return;
for (Expression exp : function.getParameters().getExpressions()) {
exp.accept(this);
}
}