Examples with SearchClause com.alibaba.druid.sql.dialect.oracle.ast.clause.SearchClause used on opensource projects

Example 1 with SearchClause

use of com.alibaba.druid.sql.dialect.oracle.ast.clause.SearchClause in project druid by alibaba.

the class OracleSelectParser method withSubquery.

protected void withSubquery(SQLSelect select) {
    if (lexer.token() == Token.WITH) {
        lexer.nextToken();
        SQLWithSubqueryClause subqueryFactoringClause = new SQLWithSubqueryClause();
        for (; ; ) {
            OracleWithSubqueryEntry entry = new OracleWithSubqueryEntry();
            entry.setName((SQLIdentifierExpr) this.exprParser.name());
            if (lexer.token() == Token.LPAREN) {
                lexer.nextToken();
                exprParser.names(entry.getColumns());
                accept(Token.RPAREN);
            }
            accept(Token.AS);
            accept(Token.LPAREN);
            entry.setSubQuery(select());
            accept(Token.RPAREN);
            if (identifierEquals("SEARCH")) {
                lexer.nextToken();
                SearchClause searchClause = new SearchClause();
                if (lexer.token() != Token.IDENTIFIER) {
                    throw new ParserException("syntax erorr : " + lexer.token());
                }
                searchClause.setType(SearchClause.Type.valueOf(lexer.stringVal()));
                lexer.nextToken();
                acceptIdentifier("FIRST");
                accept(Token.BY);
                searchClause.addItem(exprParser.parseSelectOrderByItem());
                while (lexer.token() == (Token.COMMA)) {
                    lexer.nextToken();
                    searchClause.addItem(exprParser.parseSelectOrderByItem());
                }
                accept(Token.SET);
                searchClause.setOrderingColumn((SQLIdentifierExpr) exprParser.name());
                entry.setSearchClause(searchClause);
            }
            if (identifierEquals("CYCLE")) {
                lexer.nextToken();
                CycleClause cycleClause = new CycleClause();
                exprParser.exprList(cycleClause.getAliases(), cycleClause);
                accept(Token.SET);
                cycleClause.setMark(exprParser.expr());
                accept(Token.TO);
                cycleClause.setValue(exprParser.expr());
                accept(Token.DEFAULT);
                cycleClause.setDefaultValue(exprParser.expr());
                entry.setCycleClause(cycleClause);
            }
            subqueryFactoringClause.addEntry(entry);
            if (lexer.token() == Token.COMMA) {
                lexer.nextToken();
                continue;
            }
            break;
        }
        select.setWithSubQuery(subqueryFactoringClause);
    }
}