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

com.alibaba.druid.sql.ast.expr.SQLBinaryOpExpr

        return false;
    }


    private void visitorBinaryRight(SQLBinaryOpExpr x) {
        if (x.getRight() instanceof SQLBinaryOpExpr) {
            SQLBinaryOpExpr right = (SQLBinaryOpExpr) x.getRight();
            boolean rightRational = right.getOperator() == SQLBinaryOperator.BooleanAnd
                                    || right.getOperator() == SQLBinaryOperator.BooleanOr;


            if (right.getOperator().priority >= x.getOperator().priority) {
                if (rightRational) {
                    incrementIndent();
                }


                print('(');
                right.accept(this);
                print(')');


                if (rightRational) {
                    decrementIndent();
                }
            } else {
                right.accept(this);
            }
        } else {
            x.getRight().accept(this);
        }
    }

View Full Code Here

        }
    }


    private void visitBinaryLeft(SQLExpr left, SQLBinaryOperator op) {
        if (left instanceof SQLBinaryOpExpr) {
            SQLBinaryOpExpr binaryLeft = (SQLBinaryOpExpr) left;
            boolean leftRational = binaryLeft.getOperator() == SQLBinaryOperator.BooleanAnd
                                   || binaryLeft.getOperator() == SQLBinaryOperator.BooleanOr;


            if (binaryLeft.getOperator().priority > op.priority) {
                if (leftRational) {
                    incrementIndent();
                }
                print('(');
                left.accept(this);

View Full Code Here

        }


        for (;;) {
            if (x.getRight() instanceof SQLBinaryOpExpr) {
                if (x.getLeft() instanceof SQLBinaryOpExpr) {
                    SQLBinaryOpExpr leftBinaryExpr = (SQLBinaryOpExpr) x.getLeft();
                    if (leftBinaryExpr.getRight().equals(x.getRight())) {
                        x = leftBinaryExpr;
                        v.incrementReplaceCunt();
                        continue;
                    }
                }
                SQLExpr mergedRight = merge(v, (SQLBinaryOpExpr) x.getRight());
                if (mergedRight != x.getRight()) {
                    x = new SQLBinaryOpExpr(x.getLeft(), x.getOperator(), mergedRight);
                    v.incrementReplaceCunt();
                }
                x.setParent(parent);
            }


            break;
        }


        if (x.getLeft() instanceof SQLBinaryOpExpr) {
            SQLExpr mergedLeft = merge(v, (SQLBinaryOpExpr) x.getLeft());
            if (mergedLeft != x.getLeft()) {
                x = new SQLBinaryOpExpr(mergedLeft, x.getOperator(), x.getRight());
                v.incrementReplaceCunt();
            }
            x.setParent(parent);
        }


        // ID = ? OR ID = ? => ID = ?
        if (x.getOperator() == SQLBinaryOperator.BooleanOr) {
            if ((left instanceof SQLBinaryOpExpr) && (right instanceof SQLBinaryOpExpr)) {
                SQLBinaryOpExpr leftBinary = (SQLBinaryOpExpr) x.getLeft();
                SQLBinaryOpExpr rightBinary = (SQLBinaryOpExpr) x.getRight();


                if (mergeEqual(leftBinary, rightBinary)) {
                    v.incrementReplaceCunt();
                    return leftBinary;
                }

View Full Code Here

        }
        if (!(b instanceof SQLBinaryOpExpr)) {
            return false;
        }


        SQLBinaryOpExpr binaryA = (SQLBinaryOpExpr) a;
        SQLBinaryOpExpr binaryB = (SQLBinaryOpExpr) b;


        if (binaryA.getOperator() != SQLBinaryOperator.Equality) {
            return false;
        }


        if (binaryB.getOperator() != SQLBinaryOperator.Equality) {
            return false;
        }


        if (!(binaryA.getRight() instanceof SQLLiteralExpr || binaryA.getRight() instanceof SQLVariantRefExpr)) {
            return false;
        }


        if (!(binaryB.getRight() instanceof SQLLiteralExpr || binaryB.getRight() instanceof SQLVariantRefExpr)) {
            return false;
        }


        return binaryA.getLeft().toString().equals(binaryB.getLeft().toString());
    }

View Full Code Here

        if (expr instanceof SQLLiteralExpr) {
            return true;
        }


        if (expr instanceof SQLBinaryOpExpr) {
            SQLBinaryOpExpr binary = (SQLBinaryOpExpr) expr;
            return isLiteralExpr(binary.getLeft()) && isLiteralExpr(binary.getRight());
        }


        return false;
    }

View Full Code Here

    }


    public static boolean visit(ParameterizedVisitor v, SQLNullExpr x) {
        SQLObject parent = x.getParent();
        if (parent instanceof SQLBinaryOpExpr) {
            SQLBinaryOpExpr binaryOpExpr = (SQLBinaryOpExpr) parent;
            if (binaryOpExpr.getOperator() == SQLBinaryOperator.IsNot
                || binaryOpExpr.getOperator() == SQLBinaryOperator.Is) {
                v.print("NULL");
                return false;
            }
        }

View Full Code Here

            lexer.nextToken();
            
            if (lexer.token() == Token.NOT) {
                lexer.nextToken();
                SQLExpr rightExpr = primary();
                expr = new SQLBinaryOpExpr(expr, SQLBinaryOperator.IsNot, rightExpr);
            } else if (identifierEquals("A")) {
                lexer.nextToken();
                accept(Token.SET);
                expr = new OracleIsSetExpr(expr);
            } else {
                SQLExpr rightExpr = primary();
                expr = new SQLBinaryOpExpr(expr, SQLBinaryOperator.Is, rightExpr);
            }
            
            return expr;
        }
        return super.relationalRest(expr);

View Full Code Here

            
            rightExp = shift();


            rightExp = equalityRest(rightExp);


            expr = new SQLBinaryOpExpr(expr, SQLBinaryOperator.Equality, rightExp);
        } else if (lexer.token() == Token.BANGEQ) {
            lexer.nextToken();
            rightExp = shift();


            rightExp = equalityRest(rightExp);


            expr = new SQLBinaryOpExpr(expr, SQLBinaryOperator.NotEqual, rightExp);
        }


        return expr;
    }

View Full Code Here

        expr = super.exprRest(expr);
        
        if (lexer.token() == Token.COLONEQ) {
            lexer.nextToken();
            SQLExpr right = expr();
            expr = new SQLBinaryOpExpr(expr, SQLBinaryOperator.Assignment, right);
        }
        
        return expr;
    }

View Full Code Here

            lexer.nextToken();
            SQLExpr rightExp = equality();


            rightExp = relationalRest(rightExp);


            return new SQLBinaryOpExpr(expr, SQLBinaryOperator.RegExp, rightExp);
        }


        if (identifierEquals("RLIKE")) {
            lexer.nextToken();
            SQLExpr rightExp = equality();


            rightExp = relationalRest(rightExp);


            return new SQLBinaryOpExpr(expr, SQLBinaryOperator.RegExp, rightExp);
        }


        return super.relationalRest(expr);
    }

View Full Code Here

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