TypeTable (Payara Project 5.193.1 API)

java.lang.Object
- com.sun.jdo.spi.persistence.support.sqlstore.query.util.type.TypeTable

```
public class TypeTable
extends Object
```
Version:

0.1

Author:

Michael Bouschen, Shing Wai Chan

Field Summary

Fields
Modifier and Type	Field and Description
`MathType`	`bigDecimalType` Represents the type java.math.BigDecimal
`MathType`	`bigIntegerType` Represents the type java.math.BigInteger
`BooleanType`	`booleanType` Represents the type boolean.
`IntegralType`	`byteType` Represents the type byte.
`IntegralType`	`charType` Represents the type char.
`protected ClassLoader`	`classLoader` Store class loader for Class.forName lookup
`FloatingPointType`	`doubleType` Represents the type double.
`static ErrorType`	`errorType` Represents the internal error type.
`FloatingPointType`	`floatType` Represents the type float.
`IntegralType`	`intType` Represents the type int.
`IntegralType`	`longType` Represents the type long.
`protected Model`	`model` The model used to access class meta info
`static NullType`	`nullType` Represents the type of null
`IntegralType`	`shortType` Represents the type short.
`StringType`	`stringType` Represents the type java.lang.String.
`protected Map`	`types` The list of actual known types.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`Type`	`binaryNumericPromotion(Type left, Type right)` Implements binary numeric promotion as defined in the Java Language Specification section 5.6.2
`Type`	`checkType(Class clazz)` Checks for the type with the specified name.
`Type`	`checkType(String name)` Checks for the type with the specified name.
`Type`	`getAvgReturnType(Type type)` Return JDO QL return type for Avg function for a given type.
`static TypeTable`	`getInstance(ClassLoader classLoader)`
`Type`	`getMinMaxReturnType(Type type)` Return JDO QL return type for Min/Max function for a given type.
`Type`	`getSumReturnType(Type type)` Return JDO QL return type for Sum function for a given type.
`boolean`	`isBooleanType(Type type)` Returns true if type is boolean or java.lang.Boolean
`boolean`	`isCharType(Type type)` Returns true if type is char or java.lang.Character
`boolean`	`isCollectionType(Type type)` Returns true if type denotes a collection type.
`boolean`	`isDoubleType(Type type)` Returns true if type is double or java.lang.Double
`boolean`	`isFloatingPointType(Type type)` Returns true if type is a floating point type or a Java wrapper class type wrapping a floating point integral type.
`boolean`	`isIntegralType(Type type)` Returns true if type is an integral type or a Java wrapper class type wrapping an integral type.
`boolean`	`isIntType(Type type)` Returns true if type is int or java.lang.Integer
`boolean`	`isJavaLangMathType(Type type)` Returns true if type denotes a collection type.
`boolean`	`isNumberType(Type type)` Returns true if type is a NumericType or compatible to java.lang.Number
`boolean`	`isPersistenceCapableType(Type type)` Returns true if type denotes a pertsistence capable class Note, it returns false for non ClassType values, especially for NullType and ErrorType.
`static void`	`removeInstance(ClassLoader classLoader)`
`Type`	`unaryNumericPromotion(Type type)` Implements unray numeric promotion as defined in the Java Language Specification section 5.6.1

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - nullType
```
public static final NullType nullType
```
    Represents the type of null
  - errorType
```
public static final ErrorType errorType
```
    Represents the internal error type.
  - booleanType
```
public BooleanType booleanType
```
    Represents the type boolean.
  - charType
```
public IntegralType charType
```
    Represents the type char.
  - byteType
```
public IntegralType byteType
```
    Represents the type byte.
  - shortType
```
public IntegralType shortType
```
    Represents the type short.
  - intType
```
public IntegralType intType
```
    Represents the type int.
  - longType
```
public IntegralType longType
```
    Represents the type long.
  - floatType
```
public FloatingPointType floatType
```
    Represents the type float.
  - doubleType
```
public FloatingPointType doubleType
```
    Represents the type double.
  - stringType
```
public StringType stringType
```
    Represents the type java.lang.String.
  - bigDecimalType
```
public MathType bigDecimalType
```
    Represents the type java.math.BigDecimal
  - bigIntegerType
```
public MathType bigIntegerType
```
    Represents the type java.math.BigInteger
  - model
```
protected Model model
```
    The model used to access class meta info
  - classLoader
```
protected ClassLoader classLoader
```
    Store class loader for Class.forName lookup
  - types
```
protected Map types
```
    The list of actual known types.
- Method Detail
  - getInstance
```
public static TypeTable getInstance(ClassLoader classLoader)
```
  - removeInstance
```
public static void removeInstance(ClassLoader classLoader)
```
  - checkType
```
public Type checkType(String name)
```
    Checks for the type with the specified name. First the internal type table is checked. If the type is not found it checks Class.forName. If the type is found the internal type table is updated (optimization for further access). If the type is neither in the type table nor found by forName null is returned and the type table is not changed. Otherwise the Type representation of the type is returned.
    
    Parameters:
    
    name - the name of the type to be checked.
    
    Returns:
    
    the Type object representing the type with the specified name or null when the type was not found.
  - checkType
```
public Type checkType(Class clazz)
```
    Checks for the type with the specified name. First the internal type table is checked. If the type is not found it checks Class.forName. If the type is found the internal type table is updated (optimization for further access). If the type is neither in the type table nor found by forName null is returned and the type table is not changed. Otherwise the Type representation of the type is returned.
    
    Parameters:
    
    clazz - the name of the type to be checked.
    
    Returns:
    
    the Type object representing the type with the specified name or null when the type was not found.
  - binaryNumericPromotion
```
public Type binaryNumericPromotion(Type left,
                                   Type right)
```
    Implements binary numeric promotion as defined in the Java Language Specification section 5.6.2
  - unaryNumericPromotion
```
public Type unaryNumericPromotion(Type type)
```
    Implements unray numeric promotion as defined in the Java Language Specification section 5.6.1
  - isNumberType
```
public boolean isNumberType(Type type)
```
    Returns true if type is a NumericType or compatible to java.lang.Number
  - isIntegralType
```
public boolean isIntegralType(Type type)
```
    Returns true if type is an integral type or a Java wrapper class type wrapping an integral type.
  - isFloatingPointType
```
public boolean isFloatingPointType(Type type)
```
    Returns true if type is a floating point type or a Java wrapper class type wrapping a floating point integral type.
  - isDoubleType
```
public boolean isDoubleType(Type type)
```
    Returns true if type is double or java.lang.Double
  - isIntType
```
public boolean isIntType(Type type)
```
    Returns true if type is int or java.lang.Integer
  - isCharType
```
public boolean isCharType(Type type)
```
    Returns true if type is char or java.lang.Character
  - isBooleanType
```
public boolean isBooleanType(Type type)
```
    Returns true if type is boolean or java.lang.Boolean
  - isPersistenceCapableType
```
public boolean isPersistenceCapableType(Type type)
```
    Returns true if type denotes a pertsistence capable class Note, it returns false for non ClassType values, especially for NullType and ErrorType.
  - isCollectionType
```
public boolean isCollectionType(Type type)
```
    Returns true if type denotes a collection type. Note, it returns false for non ClassType values, especially for NullType and ErrorType.
  - isJavaLangMathType
```
public boolean isJavaLangMathType(Type type)
```
    Returns true if type denotes a collection type. Note, it returns false for non ClassType values, especially for NullType and ErrorType.
  - getSumReturnType
```
public Type getSumReturnType(Type type)
```
    Return JDO QL return type for Sum function for a given type.
    
    Parameters:
    
    type - is a number data type
  - getAvgReturnType
```
public Type getAvgReturnType(Type type)
```
    Return JDO QL return type for Avg function for a given type.
    
    Parameters:
    
    type - is a number data type
  - getMinMaxReturnType
```
public Type getMinMaxReturnType(Type type)
```
    Return JDO QL return type for Min/Max function for a given type.
    
    Parameters:
    
    type - is an orderable data type

Class TypeTable

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

nullType

errorType

booleanType

charType

byteType

shortType

intType

longType

floatType

doubleType

stringType

bigDecimalType

bigIntegerType

model

classLoader

types

Method Detail

getInstance

removeInstance

checkType

checkType

binaryNumericPromotion

unaryNumericPromotion

isNumberType

isIntegralType

isFloatingPointType

isDoubleType

isIntType

isCharType

isBooleanType

isPersistenceCapableType

isCollectionType

isJavaLangMathType

getSumReturnType

getAvgReturnType

getMinMaxReturnType