DataType (org.tinygroup.dbrouter 2.0.9 API)

java.lang.Object
- org.tinygroup.dbrouter.value.DataType

```
public class DataType
extends Object
```
This class contains meta data information about data types, and can convert between Java objects and Values.

字段摘要

Fields
Modifier and Type Field and 描述

static int TYPE_RESULT_SET
This constant is used to represent the type of a ResultSet.

Fields
Modifier and Type	Field and 描述
`static int`	`TYPE_RESULT_SET` This constant is used to represent the type of a ResultSet.

构造方法摘要

Constructors
Constructor and 描述

DataType()

Constructors
Constructor and 描述
`DataType()`

方法摘要

Methods
Modifier and Type	Method and 描述
`static int`	`convertSQLTypeToValueType(int sqlType)` Convert a SQL type to a value type.
`static int`	`getAddProofType(int type)` Get the data type that will not overflow when calling 'add' 2 billion times.
`static DataType`	`getDataType(int type)` Get the data type object for the given value type.
`int`	`getDefaultDisplaySize()`
`static Object`	`getDefaultForPrimitiveType(Class<?> clazz)` Get the default value in the form of a Java object for the given Java class.
`long`	`getDefaultPrecision()`
`int`	`getDefaultScale()`
`String`	`getJdbc()`
`long`	`getMaxPrecision()`
`int`	`getMaxScale()`
`int`	`getMinScale()`
`String`	`getName()`
`static Class<?>`	`getNonPrimitiveClass(Class<?> clazz)` Convert primitive class names to java.lang.* class names.
`String`	`getParams()`
`String`	`getPrefix()`
`int`	`getSqlType()`
`int`	`getSqlTypePos()`
`String`	`getSuffix()`
`int`	`getType()`
`static DataType`	`getTypeByName(String s)` Get a data type object from a type name.
`static String`	`getTypeClassName(int type)` Get the name of the Java class for the given value type.
`static int`	`getTypeFromClass(Class<?> x)` Get the value type for the given Java class.
`static List<DataType>`	`getTypes()` Get the list of data types.
`boolean`	`isAutoIncrement()`
`boolean`	`isCaseSensitive()`
`boolean`	`isDecimal()`
`boolean`	`isHidden()`
`static boolean`	`isLargeObject(int type)` Check if the given value type is a large object (BLOB or CLOB).
`static boolean`	`isStringType(int type)` Check if the given value type is a String (VARCHAR,...).
`boolean`	`isSupportsPrecision()`
`boolean`	`isSupportsScale()`
`static boolean`	`supportsAdd(int type)` Check if the given value type supports the add operation.

从类 {0} 继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- 字段详细信息
  - TYPE_RESULT_SET
```
public static final int TYPE_RESULT_SET
```
    This constant is used to represent the type of a ResultSet. There is no equivalent java.sql.Types value, but Oracle uses it to represent a ResultSet (OracleTypes.CURSOR = -10).
    
    另请参见：
    常量字段值
- 构造方法详细信息
  - DataType
```
public DataType()
```
- 方法详细信息
  - getTypes
```
public static List<DataType> getTypes()
```
    Get the list of data types.
    
    返回：
    the list
  - getTypeClassName
```
public static String getTypeClassName(int type)
```
    Get the name of the Java class for the given value type.
    
    参数：
    type - the value type
    
    返回：
    the class name
  - convertSQLTypeToValueType
```
public static int convertSQLTypeToValueType(int sqlType)
```
    Convert a SQL type to a value type.
    
    参数：
    sqlType - the SQL type
    
    返回：
    the value type
  - getTypeFromClass
```
public static int getTypeFromClass(Class<?> x)
```
    Get the value type for the given Java class.
    
    参数：
    x - the Java class
    
    返回：
    the value type
  - getNonPrimitiveClass
```
public static Class<?> getNonPrimitiveClass(Class<?> clazz)
```
    Convert primitive class names to java.lang.* class names.
    
    参数：
    clazz - the class (for example: int)
    
    返回：
    the non-primitive class (for example: java.lang.Integer)
  - isLargeObject
```
public static boolean isLargeObject(int type)
```
    Check if the given value type is a large object (BLOB or CLOB).
    
    参数：
    type - the value type
    
    返回：
    true if the value type is a lob type
  - isStringType
```
public static boolean isStringType(int type)
```
    Check if the given value type is a String (VARCHAR,...).
    
    参数：
    type - the value type
    
    返回：
    true if the value type is a String type
  - supportsAdd
```
public static boolean supportsAdd(int type)
```
    Check if the given value type supports the add operation.
    
    参数：
    type - the value type
    
    返回：
    true if add is supported
  - getAddProofType
```
public static int getAddProofType(int type)
```
    Get the data type that will not overflow when calling 'add' 2 billion times.
    
    参数：
    type - the value type
    
    返回：
    the data type that supports adding
  - getDefaultForPrimitiveType
```
public static Object getDefaultForPrimitiveType(Class<?> clazz)
```
    Get the default value in the form of a Java object for the given Java class.
    
    参数：
    clazz - the Java class
    
    返回：
    the default object
  - getDataType
```
public static DataType getDataType(int type)
```
    Get the data type object for the given value type.
    
    参数：
    type - the value type
    
    返回：
    the data type object
  - getTypeByName
```
public static DataType getTypeByName(String s)
```
    Get a data type object from a type name.
    
    参数：
    s - the type name
    
    返回：
    the data type object
  - getType
```
public int getType()
```
  - getName
```
public String getName()
```
  - getSqlType
```
public int getSqlType()
```
  - getJdbc
```
public String getJdbc()
```
  - getSqlTypePos
```
public int getSqlTypePos()
```
  - getMaxPrecision
```
public long getMaxPrecision()
```
  - getMinScale
```
public int getMinScale()
```
  - getMaxScale
```
public int getMaxScale()
```
  - isDecimal
```
public boolean isDecimal()
```
  - getPrefix
```
public String getPrefix()
```
  - getSuffix
```
public String getSuffix()
```
  - getParams
```
public String getParams()
```
  - isAutoIncrement
```
public boolean isAutoIncrement()
```
  - isCaseSensitive
```
public boolean isCaseSensitive()
```
  - isSupportsPrecision
```
public boolean isSupportsPrecision()
```
  - isSupportsScale
```
public boolean isSupportsScale()
```
  - getDefaultPrecision
```
public long getDefaultPrecision()
```
  - getDefaultScale
```
public int getDefaultScale()
```
  - getDefaultDisplaySize
```
public int getDefaultDisplaySize()
```
  - isHidden
```
public boolean isHidden()
```

类 DataType

字段摘要

构造方法摘要

方法摘要

从类 {0} 继承的方法 java.lang.Object

字段详细信息

TYPE_RESULT_SET

构造方法详细信息

DataType

方法详细信息

getTypes

getTypeClassName

convertSQLTypeToValueType

getTypeFromClass

getNonPrimitiveClass

isLargeObject

isStringType

supportsAdd

getAddProofType

getDefaultForPrimitiveType

getDataType

getTypeByName

getType

getName

getSqlType

getJdbc

getSqlTypePos

getMaxPrecision

getMinScale

getMaxScale

isDecimal

getPrefix

getSuffix

getParams

isAutoIncrement

isCaseSensitive

isSupportsPrecision

isSupportsScale

getDefaultPrecision

getDefaultScale

getDefaultDisplaySize

isHidden