Examples of org.teiid.query.sql.symbol.GroupSymbol

org.teiid.query.sql.symbol.GroupSymbol

This is the server's representation of a metadata group symbol. The group symbol has a name, an optional definition, and a reference to a real metadata ID. Typically, a GroupSymbol will be created only from a name and possibly a definition if the group has an alias. The metadata ID is discovered only when resolving the query.

For example, if the original string contained a FROM clause such as "FROM Group1 AS G, Group2", there would be two GroupSymbols created. The first would have name=G, definition=Group1 and the second would have name=Group2, definition=null.

        TestParser.helpException("SELECT a from g OPTION xyx");         //$NON-NLS-1$
    }
    
    @Test public void testInsertWithOption() {
        Insert insert = new Insert();
        insert.setGroup(new GroupSymbol("m.g")); //$NON-NLS-1$
        List vars = new ArrayList();
        vars.add(new ElementSymbol("a"));         //$NON-NLS-1$
        insert.setVariables(vars);
        List values = new ArrayList();
        values.add(new Reference(0));

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                 insert);                     
    }
    
    @Test public void testDeleteWithOption() {
        Delete delete = new Delete();
        delete.setGroup(new GroupSymbol("m.g")); //$NON-NLS-1$
        Option option = new Option();
        option.setNoCache(true);       
        delete.setOption(option);
        TestParser.helpTest("DELETE FROM m.g OPTION NOCACHE",  //$NON-NLS-1$
                 "DELETE FROM m.g OPTION NOCACHE",  //$NON-NLS-1$

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                 delete);                     
    }
    
    @Test public void testUpdateWithOption() {
        Update update = new Update();     
        update.setGroup(new GroupSymbol("m.g")); //$NON-NLS-1$
        update.addChange(new ElementSymbol("a"), new Reference(0));
        Option option = new Option();
        option.setNoCache(true);
        Criteria crit = new CompareCriteria(new ElementSymbol("b"), CompareCriteria.EQ, new Reference(1)); //$NON-NLS-1$
        update.setCriteria(crit);

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        Select select = new Select();
        select.addSymbol(new AllSymbol());
        query.setSelect(select);
        From from = new From();
        UnaryFromClause ufc = new UnaryFromClause();
        ufc.setGroup(new GroupSymbol("t1")); //$NON-NLS-1$
        ufc.setOptional(true);
        from.addClause(ufc); 
        from.addGroup(new GroupSymbol("t2")); //$NON-NLS-1$
        query.setFrom(from);           


        TestParser.helpTest(sql, "SELECT * FROM /*+ optional */ t1, t2", query);         //$NON-NLS-1$
    }

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        Select select = new Select();
        select.addSymbol(new AllSymbol());
        query.setSelect(select);
        From from = new From();
        UnaryFromClause ufc = new UnaryFromClause();
        ufc.setGroup(new GroupSymbol("t1")); //$NON-NLS-1$
        ufc.setOptional(true);
        from.addClause(ufc); 
        from.addGroup(new GroupSymbol("t2")); //$NON-NLS-1$
        query.setFrom(from);           


        TestParser.helpTest(sql, "SELECT * FROM /*+ optional */ t1, t2", query);         //$NON-NLS-1$
    }

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        Select select = new Select();
        select.addSymbol(new AllSymbol());
        query.setSelect(select);
        From from = new From();
        UnaryFromClause ufc = new UnaryFromClause();
        ufc.setGroup(new GroupSymbol("t1")); //$NON-NLS-1$
        ufc.setOptional(true);
        from.addClause(ufc); 
        from.addGroup(new GroupSymbol("t2")); //$NON-NLS-1$
        query.setFrom(from);           


        TestParser.helpTest(sql, "SELECT * FROM /*+ optional */ t1, t2", query);         //$NON-NLS-1$
    }

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        Select select = new Select();
        select.addSymbol(new AllSymbol());
        query.setSelect(select);
        From from = new From();
        UnaryFromClause ufc = new UnaryFromClause();
        ufc.setGroup(new GroupSymbol("t1")); //$NON-NLS-1$
        ufc.setOptional(true);
        from.addClause(ufc); 
        from.addGroup(new GroupSymbol("t2")); //$NON-NLS-1$
        query.setFrom(from);           


        TestParser.helpTest(sql, "SELECT * FROM /*+ optional */ t1, t2", query);         //$NON-NLS-1$
    }

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        Select select = new Select();
        select.addSymbol(new AllSymbol());
        query.setSelect(select);
        From from = new From();
        UnaryFromClause ufc = new UnaryFromClause();
        ufc.setGroup(new GroupSymbol("t1")); //$NON-NLS-1$
        ufc.setOptional(true);
        from.addClause(ufc); 
        from.addGroup(new GroupSymbol("t2")); //$NON-NLS-1$
        query.setFrom(from);           


        TestParser.helpTest(sql, "SELECT * FROM /*+ optional */ t1, t2", query);         //$NON-NLS-1$
    }

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        Select select = new Select();
        select.addSymbol(new AllSymbol());
        query.setSelect(select);
        From from = new From();
        UnaryFromClause ufc = new UnaryFromClause();
        ufc.setGroup(new GroupSymbol("t1")); //$NON-NLS-1$
        ufc.setOptional(true);
        from.addClause(ufc); 
        from.addGroup(new GroupSymbol("t2")); //$NON-NLS-1$
        query.setFrom(from);           


        TestParser.helpTest(sql, "SELECT * FROM /*+ optional */ t1, t2", query);         //$NON-NLS-1$
    }

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        Query query = new Query();
        Select select = new Select();
        select.addSymbol(new AllSymbol());
        query.setSelect(select);
        From from = new From();
        from.addGroup(new GroupSymbol("t1")); //$NON-NLS-1$
        UnaryFromClause ufc = new UnaryFromClause();
        ufc.setGroup(new GroupSymbol("t2")); //$NON-NLS-1$
        ufc.setOptional(true);
        from.addClause(ufc); 
        query.setFrom(from);           


        TestParser.helpTest(sql, "SELECT * FROM t1, /*+ optional */ t2", query);         //$NON-NLS-1$

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