org.frameworkset.util

Class GenericCollectionTypeResolver

java.lang.Object

org.frameworkset.util.GenericCollectionTypeResolver

public abstract class GenericCollectionTypeResolver
extends java.lang.Object

Title: GenericCollectionTypeResolver.java

Description:

bboss workgroup

Copyright (c) 2008

Constructor Summary

Constructors

Constructor and Description
GenericCollectionTypeResolver()

Method Summary

Modifier and Type	Method and Description
static java.lang.Class	getCollectionFieldType(java.lang.reflect.Field collectionField) Determine the generic element type of the given Collection field.
static java.lang.Class	getCollectionFieldType(java.lang.reflect.Field collectionField, int nestingLevel) Determine the generic element type of the given Collection field.
static java.lang.Class	getCollectionParameterType(MethodParameter methodParam) Determine the generic element type of the given Collection parameter.
static java.lang.Class	getCollectionReturnType(java.lang.reflect.Method method) Determine the generic element type of the given Collection return type.
static java.lang.Class	getCollectionReturnType(java.lang.reflect.Method method, int nestingLevel) Determine the generic element type of the given Collection return type.
static java.lang.Class	getCollectionType(java.lang.Class collectionClass) Determine the generic element type of the given Collection class (if it declares one through a generic superclass or generic interface).
static java.lang.Class	getMapKeyFieldType(java.lang.reflect.Field mapField) Determine the generic key type of the given Map field.
static java.lang.Class	getMapKeyFieldType(java.lang.reflect.Field mapField, int nestingLevel) Determine the generic key type of the given Map field.
static java.lang.Class	getMapKeyParameterType(MethodParameter methodParam) Determine the generic key type of the given Map parameter.
static java.lang.Class	getMapKeyReturnType(java.lang.reflect.Method method) Determine the generic key type of the given Map return type.
static java.lang.Class	getMapKeyReturnType(java.lang.reflect.Method method, int nestingLevel) Determine the generic key type of the given Map return type.
static java.lang.Class	getMapKeyType(java.lang.Class mapClass) Determine the generic key type of the given Map class (if it declares one through a generic superclass or generic interface).
static java.lang.Class	getMapValueFieldType(java.lang.reflect.Field mapField) Determine the generic value type of the given Map field.
static java.lang.Class	getMapValueFieldType(java.lang.reflect.Field mapField, int nestingLevel) Determine the generic value type of the given Map field.
static java.lang.Class	getMapValueParameterType(MethodParameter methodParam) Determine the generic value type of the given Map parameter.
static java.lang.Class	getMapValueReturnType(java.lang.reflect.Method method) Determine the generic value type of the given Map return type.
static java.lang.Class	getMapValueReturnType(java.lang.reflect.Method method, int nestingLevel) Determine the generic value type of the given Map return type.
static java.lang.Class	getMapValueType(java.lang.Class mapClass) Determine the generic value type of the given Map class (if it declares one through a generic superclass or generic interface).

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

GenericCollectionTypeResolver

public GenericCollectionTypeResolver()

Method Detail

getCollectionType

public static java.lang.Class getCollectionType(java.lang.Class collectionClass)

Determine the generic element type of the given Collection class (if it declares one through a generic superclass or generic interface).

Parameters:

collectionClass - the collection class to introspect

Returns:

the generic type, or null if none

getMapKeyType

public static java.lang.Class getMapKeyType(java.lang.Class mapClass)

Determine the generic key type of the given Map class (if it declares one through a generic superclass or generic interface).

Parameters:

mapClass - the map class to introspect

Returns:

the generic type, or null if none

getMapValueType

public static java.lang.Class getMapValueType(java.lang.Class mapClass)

Determine the generic value type of the given Map class (if it declares one through a generic superclass or generic interface).

Parameters:

mapClass - the map class to introspect

Returns:

the generic type, or null if none

getCollectionFieldType

public static java.lang.Class getCollectionFieldType(java.lang.reflect.Field collectionField)

Determine the generic element type of the given Collection field.

Parameters:

collectionField - the collection field to introspect

Returns:

the generic type, or null if none

getCollectionFieldType

public static java.lang.Class getCollectionFieldType(java.lang.reflect.Field collectionField,
                                                     int nestingLevel)

Determine the generic element type of the given Collection field.

Parameters:

collectionField - the collection field to introspect

nestingLevel - the nesting level of the target type (typically 1; e.g. in case of a List of Lists, 1 would indicate the nested List, whereas 2 would indicate the element of the nested List)

Returns:

the generic type, or null if none

getMapKeyFieldType

public static java.lang.Class getMapKeyFieldType(java.lang.reflect.Field mapField)

Determine the generic key type of the given Map field.

Parameters:

mapField - the map field to introspect

Returns:

the generic type, or null if none

getMapKeyFieldType

public static java.lang.Class getMapKeyFieldType(java.lang.reflect.Field mapField,
                                                 int nestingLevel)

Determine the generic key type of the given Map field.

Parameters:

mapField - the map field to introspect

nestingLevel - the nesting level of the target type (typically 1; e.g. in case of a List of Lists, 1 would indicate the nested List, whereas 2 would indicate the element of the nested List)

Returns:

the generic type, or null if none

getMapValueFieldType

public static java.lang.Class getMapValueFieldType(java.lang.reflect.Field mapField)

Determine the generic value type of the given Map field.

Parameters:

mapField - the map field to introspect

Returns:

the generic type, or null if none

getMapValueFieldType

public static java.lang.Class getMapValueFieldType(java.lang.reflect.Field mapField,
                                                   int nestingLevel)

Determine the generic value type of the given Map field.

Parameters:

mapField - the map field to introspect

nestingLevel - the nesting level of the target type (typically 1; e.g. in case of a List of Lists, 1 would indicate the nested List, whereas 2 would indicate the element of the nested List)

Returns:

the generic type, or null if none

getCollectionParameterType

public static java.lang.Class getCollectionParameterType(MethodParameter methodParam)

Determine the generic element type of the given Collection parameter.

Parameters:

methodParam - the method parameter specification

Returns:

the generic type, or null if none

getMapKeyParameterType

public static java.lang.Class getMapKeyParameterType(MethodParameter methodParam)

Determine the generic key type of the given Map parameter.

Parameters:

methodParam - the method parameter specification

Returns:

the generic type, or null if none

getMapValueParameterType

public static java.lang.Class getMapValueParameterType(MethodParameter methodParam)

Determine the generic value type of the given Map parameter.

Parameters:

methodParam - the method parameter specification

Returns:

the generic type, or null if none

getCollectionReturnType

public static java.lang.Class getCollectionReturnType(java.lang.reflect.Method method)

Determine the generic element type of the given Collection return type.

Parameters:

method - the method to check the return type for

Returns:

the generic type, or null if none

getCollectionReturnType

public static java.lang.Class getCollectionReturnType(java.lang.reflect.Method method,
                                                      int nestingLevel)

Determine the generic element type of the given Collection return type.

If the specified nesting level is higher than 1, the element type of a nested Collection/Map will be analyzed.

Parameters:

method - the method to check the return type for

nestingLevel - the nesting level of the target type (typically 1; e.g. in case of a List of Lists, 1 would indicate the nested List, whereas 2 would indicate the element of the nested List)

Returns:

the generic type, or null if none

getMapKeyReturnType

public static java.lang.Class getMapKeyReturnType(java.lang.reflect.Method method)

Determine the generic key type of the given Map return type.

Parameters:

method - the method to check the return type for

Returns:

the generic type, or null if none

getMapKeyReturnType

public static java.lang.Class getMapKeyReturnType(java.lang.reflect.Method method,
                                                  int nestingLevel)

Determine the generic key type of the given Map return type.

Parameters:

method - the method to check the return type for

nestingLevel - the nesting level of the target type (typically 1; e.g. in case of a List of Lists, 1 would indicate the nested List, whereas 2 would indicate the element of the nested List)

Returns:

the generic type, or null if none

getMapValueReturnType

public static java.lang.Class getMapValueReturnType(java.lang.reflect.Method method)

Determine the generic value type of the given Map return type.

Parameters:

method - the method to check the return type for

Returns:

the generic type, or null if none

getMapValueReturnType

public static java.lang.Class getMapValueReturnType(java.lang.reflect.Method method,
                                                    int nestingLevel)

Determine the generic value type of the given Map return type.

Parameters:

method - the method to check the return type for

nestingLevel - the nesting level of the target type (typically 1; e.g. in case of a List of Lists, 1 would indicate the nested List, whereas 2 would indicate the element of the nested List)

Returns:

the generic type, or null if none