org.apache.shardingsphere.sql.parser.sql.common.util

类 SQLUtil

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()

方法概要

限定符和类型	方法和说明
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	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.

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

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