SQLUtil (shardingsphere-sql-parser-statement 5.2.0 API)

java.lang.Object
- org.apache.shardingsphere.sql.parser.sql.common.util.SQLUtil

public final class SQLUtil
extends Object

SQL utility class.

构造器概要

构造器
构造器和说明

SQLUtil()

构造器
构造器和说明
`SQLUtil()`

方法概要

所有方法静态方法具体方法
限定符和类型	方法和说明
`static String`	`convertLikePatternToRegex(String pattern)` Convert like pattern to regex.
`static ExpressionSegment`	`createLiteralExpression(ASTNode astNode, int startIndex, int stopIndex, String text)` Create literal expression.
`static String`	`getExactlyExpression(String value)` Get exactly SQL expression.
`static Number`	`getExactlyNumber(String value, int radix)` Get exactly number value and type.
`static String`	`getExactlyValue(String value)` Get exactly value for SQL expression.
`static String`	`getExactlyValue(String value, String reservedCharacters)` Get exactly value for SQL expression.
`static String`	`getExpressionWithoutOutsideParentheses(String value)` Get exactly SQL expression without outside parentheses.
`static List<SubqueryTableSegment>`	`getSubqueryTableSegmentFromTableSegment(TableSegment tableSegment)` Get subquery from tableSegment.
`static boolean`	`isReadOnly(SQLStatement sqlStatement)` Determine whether SQL is read-only.
`static String`	`trimComment(String sql)` Trim the comment of SQL.
`static String`	`trimSemicolon(String sql)` Trim the semicolon of SQL.

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- 构造器详细资料
  - SQLUtil
```
public SQLUtil()
```
- 方法详细资料
  - getExactlyNumber
```
public static Number getExactlyNumber(String value,
                                      int radix)
```
    Get exactly number value and type.
    
    参数:
    
    value - string to be converted
    
    radix - radix
    
    返回:
    
    exactly number value and type
  - getExactlyValue
```
public static String getExactlyValue(String value)
```
    Get exactly value for SQL expression.
    remove special char for SQL expression
    
    参数:
    
    value - SQL expression
    
    返回:
    
    exactly SQL expression
  - getExactlyValue
```
public static String getExactlyValue(String value,
                                     String reservedCharacters)
```
    Get exactly value for SQL expression.
    remove special char for SQL expression
    
    参数:
    
    value - SQL expression
    
    reservedCharacters - characters to be reserved
    
    返回:
    
    exactly SQL expression
  - getExactlyExpression
```
public static String getExactlyExpression(String value)
```
    Get exactly SQL expression.
    remove space for SQL expression
    
    参数:
    
    value - SQL expression
    
    返回:
    
    exactly SQL expression
  - getExpressionWithoutOutsideParentheses
```
public static String getExpressionWithoutOutsideParentheses(String value)
```
    Get exactly SQL expression without outside parentheses.
    
    参数:
    
    value - SQL expression
    
    返回:
    
    exactly SQL expression
  - getSubqueryTableSegmentFromTableSegment
```
public static List<SubqueryTableSegment> getSubqueryTableSegmentFromTableSegment(TableSegment tableSegment)
```
    Get subquery from tableSegment.
    
    参数:
    
    tableSegment - TableSegment
    
    返回:
    
    exactly SubqueryTableSegment list
  - isReadOnly
```
public static boolean isReadOnly(SQLStatement sqlStatement)
```
    Determine whether SQL is read-only.
    
    参数:
    
    sqlStatement - SQL statement
    
    返回:
    
    true if read-only, otherwise false
  - createLiteralExpression
```
public static ExpressionSegment createLiteralExpression(ASTNode astNode,
                                                        int startIndex,
                                                        int stopIndex,
                                                        String text)
```
    Create literal expression.
    
    参数:
    
    astNode - AST node
    
    startIndex - start index
    
    stopIndex - stop index
    
    text - text
    
    返回:
    
    literal expression segment
  - trimSemicolon
```
public static String trimSemicolon(String sql)
```
    Trim the semicolon of SQL.
    
    参数:
    
    sql - SQL to be trim
    
    返回:
    
    SQL without semicolon
  - trimComment
```
public static String trimComment(String sql)
```
    Trim the comment of SQL.
    
    参数:
    
    sql - SQL to be trim
    
    返回:
    
    remove comment from SQL
  - convertLikePatternToRegex
```
public static String convertLikePatternToRegex(String pattern)
```
    Convert like pattern to regex.
    
    参数:
    
    pattern - like pattern
    
    返回:
    
    regex

类 SQLUtil

构造器概要

方法概要

从类继承的方法 java.lang.Object

构造器详细资料

SQLUtil

方法详细资料

getExactlyNumber

getExactlyValue

getExactlyValue

getExactlyExpression

getExpressionWithoutOutsideParentheses

getSubqueryTableSegmentFromTableSegment

isReadOnly

createLiteralExpression

trimSemicolon

trimComment

convertLikePatternToRegex