Package com.alibaba.druid.sql.ast.expr

Examples of com.alibaba.druid.sql.ast.expr.SQLIdentifierExpr

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            accept(Token.FOR);

            if (lexer.token() == (Token.LPAREN)) {
                lexer.nextToken();
                while (true) {
                    pivot.getPivotFor().add(new SQLIdentifierExpr(lexer.stringVal()));
                    lexer.nextToken();

                    if (!(lexer.token() == (Token.COMMA))) break;
                    lexer.nextToken();
                }

                accept(Token.RPAREN);
            } else {
                pivot.getPivotFor().add(new SQLIdentifierExpr(lexer.stringVal()));
                lexer.nextToken();
            }

            accept(Token.IN);
            accept(Token.LPAREN);
            if (lexer.token() == (Token.LPAREN)) {
                throw new ParserException("TODO");
            }

            if (lexer.token() == (Token.SELECT)) {
                throw new ParserException("TODO");
            }

            for (;;) {
                item = new OracleSelectPivot.Item();
                item.setExpr(this.createExprParser().expr());
                item.setAlias(as());
                pivot.getPivotIn().add(item);

                if (lexer.token() != Token.COMMA) {
                    break;
                }

                lexer.nextToken();
            }

            accept(Token.RPAREN);

            accept(Token.RPAREN);

            tableSource.setPivot(pivot);
        } else if (identifierEquals("UNPIVOT")) {
            lexer.nextToken();

            OracleSelectUnPivot unPivot = new OracleSelectUnPivot();
            if (identifierEquals("INCLUDE")) {
                lexer.nextToken();
                acceptIdentifier("NULLS");
                unPivot.setNullsIncludeType(OracleSelectUnPivot.NullsIncludeType.INCLUDE_NULLS);
            } else if (identifierEquals("EXCLUDE")) {
                lexer.nextToken();
                acceptIdentifier("NULLS");
                unPivot.setNullsIncludeType(OracleSelectUnPivot.NullsIncludeType.EXCLUDE_NULLS);
            }

            accept(Token.LPAREN);

            if (lexer.token() == (Token.LPAREN)) {
                lexer.nextToken();
                this.createExprParser().exprList(unPivot.getItems());
                accept(Token.RPAREN);
            } else {
                unPivot.getItems().add(this.createExprParser().expr());
            }

            accept(Token.FOR);

            if (lexer.token() == (Token.LPAREN)) {
                lexer.nextToken();
                while (true) {
                    unPivot.getPivotFor().add(new SQLIdentifierExpr(lexer.stringVal()));
                    lexer.nextToken();

                    if (!(lexer.token() == (Token.COMMA))) break;
                    lexer.nextToken();
                }

                accept(Token.RPAREN);
            } else {
                unPivot.getPivotFor().add(new SQLIdentifierExpr(lexer.stringVal()));
                lexer.nextToken();
            }

            accept(Token.IN);
            accept(Token.LPAREN);
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    public static boolean visit(MappingVisitor visitor, SQLExprTableSource x) {
        SQLExpr expr = x.getExpr();

        if (expr instanceof SQLIdentifierExpr) {
            SQLIdentifierExpr tableExpr = (SQLIdentifierExpr) expr;
            String entityName = tableExpr.getName();

            Entity entity = (Entity) x.getAttribute(MAPPING_ENTITY);

            if (entity == null) {
                entity = visitor.getEntity(entityName);
            }

            if (entity == null) {
                throw new DruidMappingException("entity not found : " + entityName);
            }

            if (x.getParent() instanceof SQLSelectQueryBlock) {
                SQLSelectQueryBlock queryBlock = (SQLSelectQueryBlock) x.getParent();
                if (queryBlock.getAttribute(MAPPING_ENTITY) == null) {
                    queryBlock.putAttribute(MAPPING_ENTITY, entity);
                }
            }

            x.putAttribute(MAPPING_ENTITY, entity);
            String tableName = visitor.resolveTableName(entity);
            tableExpr.setName(tableName);

            visitor.getTableSources().put(entityName, x);
        }

        if (x.getAlias() != null) {
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            String alias = null;
            if (visitor.getContext().isGenerateAlias()) {
                alias = '"' + property.getName() + '"';
            }

            SQLExpr expr = new SQLIdentifierExpr(columnName);

            expr.putAttribute(MAPPING_ENTITY, entity);
            expr.putAttribute(MAPPING_PROPERTY, property);

            SQLSelectItem selelctItem = new SQLSelectItem(expr, alias);

            x.getSelectList().add(selelctItem);
        }
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        return true;
    }

    public static boolean visit(MappingVisitor visitor, SQLPropertyExpr x) {
        SQLIdentifierExpr ownerExpr = (SQLIdentifierExpr) x.getOwner();
        String ownerName = ownerExpr.getName();

        String propertyName = x.getName();

        Property property = null;
        Entity entity = visitor.getEntity(ownerName);
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            expr.setParent(selectItem);
        }

        if (x.getFrom() == null) {
            Entity firstEntity = visitor.getEngine().getFirstEntity(visitor.getContext());
            SQLExprTableSource from = new SQLExprTableSource(new SQLIdentifierExpr(firstEntity.getName()));
            from.putAttribute(MAPPING_ENTITY, firstEntity);
            x.setFrom(from);
            x.putAttribute(MAPPING_ENTITY, firstEntity);
        }
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    }

    public static void setTableSource(MappingEngine engine, SQLDeleteStatement stmt, MappingContext context) {
        if (stmt.getExprTableSource() == null) {
            Entity entity = engine.getFirstEntity(context);
            stmt.setTableSource(new SQLIdentifierExpr(entity.getName()));
        }
    }
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    }

    public static void setTableSource(MappingEngine engine, SQLUpdateStatement stmt, MappingContext context) {
        if (stmt.getTableSource() == null) {
            Entity entity = engine.getFirstEntity(context);
            stmt.setTableSource(new SQLIdentifierExpr(entity.getName()));
        }
    }
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    }

    public static void setTableSource(MappingEngine engine, SQLInsertStatement stmt, MappingContext context) {
        if (stmt.getTableSource() == null) {
            Entity entity = engine.getFirstEntity(context);
            stmt.setTableSource(new SQLIdentifierExpr(entity.getName()));
        }
    }
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                    throw new ParserException("syntax error : " + lexer.token());
                }
            case LITERAL_ALIAS:
                String alias = '"' + lexer.stringVal() + '"';
                lexer.nextToken();
                return primaryRest(new SQLIdentifierExpr(alias));
            case EXTRACT:
                lexer.nextToken();
                OracleExtractExpr extract = new OracleExtractExpr();

                accept(Token.LPAREN);

                extract.setUnit(OracleDateTimeUnit.valueOf(lexer.stringVal().toUpperCase()));
                lexer.nextToken();

                accept(Token.FROM);

                extract.setFrom(expr());

                accept(Token.RPAREN);

                return primaryRest(extract);
            case TIMESTAMP:
                return primaryRest(parseTimestamp());
            case DATE:
                return primaryRest(parseDate());
            case BINARY_FLOAT:
                OracleBinaryFloatExpr floatExpr = new OracleBinaryFloatExpr();
                floatExpr.setValue(Float.parseFloat(lexer.numberString()));
                lexer.nextToken();
                return primaryRest(floatExpr);
            case BINARY_DOUBLE:
                OracleBinaryDoubleExpr doubleExpr = new OracleBinaryDoubleExpr();
                doubleExpr.setValue(Double.parseDouble(lexer.numberString()));

                lexer.nextToken();
                return primaryRest(doubleExpr);
            case TABLE:
                lexer.nextToken();
                return primaryRest(new SQLIdentifierExpr("TABLE"));
            case PLUS:
                lexer.nextToken();
                switch (lexer.token()) {
                    case LITERAL_INT:
                        sqlExpr = new SQLIntegerExpr(lexer.integerValue());
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            char mark_ch = lexer.current();
            int mark_bp = lexer.bp();
            lexer.nextToken();
            if (lexer.token() == Token.LOCAL) {
                lexer.nextToken();
                expr = new OracleDatetimeExpr(expr, new SQLIdentifierExpr("LOCAL"));
            } else {
                if (lexer.token() == Token.TIME) {
                    lexer.nextToken();
                } else {
                    lexer.reset(mark_bp, mark_ch, Token.AT);
                    return expr;
                }
                accept(Token.ZONE);
               
                SQLExpr timeZone = primary();
                expr = new OracleDatetimeExpr(expr, timeZone);
            }
        }
       
        SQLExpr restExpr = super.primaryRest(expr);
       
        if (restExpr != expr && restExpr instanceof SQLMethodInvokeExpr) {
            SQLMethodInvokeExpr methodInvoke = (SQLMethodInvokeExpr) restExpr;
            if (methodInvoke.getParameters().size() == 1) {
                SQLExpr paramExpr = methodInvoke.getParameters().get(0);
                if (paramExpr instanceof SQLIdentifierExpr && "+".equals(((SQLIdentifierExpr) paramExpr).getName())) {
                    OracleOuterExpr outerExpr = new OracleOuterExpr();
                    if (methodInvoke.getOwner() == null) {
                        outerExpr.setExpr(new SQLIdentifierExpr(methodInvoke.getMethodName()));
                    } else {
                        outerExpr.setExpr(new SQLPropertyExpr(methodInvoke.getOwner(), methodInvoke.getMethodName()));
                    }
                    return outerExpr;
                }
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Related Classes of com.alibaba.druid.sql.ast.expr.SQLIdentifierExpr

  • com.alibaba.druid.mapping.spi.MappingVisitorUtils
  • com.alibaba.druid.sql.ast.statement.SQLDeleteStatement
  • com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowColumnsStatement
  • com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowIndexesStatement
  • com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowKeysStatement
  • com.alibaba.druid.sql.dialect.mysql.parser.MySqlDDLParser
  • com.alibaba.druid.sql.dialect.mysql.parser.MySqlExprParser
  • com.alibaba.druid.sql.dialect.mysql.parser.MySqlSelectParser
  • com.alibaba.druid.sql.dialect.mysql.parser.MySqlStatementParser
  • com.alibaba.druid.sql.dialect.odps.parser.OdpsSelectParser
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