licensed under GPL v2 or higher.
Method Summary |
static boolean |
classHasClass(java.lang.Class cl,
java.lang.String name,
boolean staticRequired)
Checks if the specified class has the given inner class. |
static boolean |
classHasField(java.lang.Class cl,
java.lang.String name,
boolean staticRequired)
Checks if the specified class has the given field. |
static boolean |
classHasMethod(java.lang.Class cl,
java.lang.String name,
boolean staticRequired)
Checks if the specified class has the given method. |
static java.lang.Class |
getClass(java.lang.Class cl,
java.lang.String name,
boolean staticRequired)
Returns an inner class of the class with the given simple name |
static java.lang.Class[] |
getClasses(java.lang.Object o)
Returns the list of classes of the object |
static java.lang.String[] |
getClassNames(java.lang.Object o)
Returns the list of class names of the object |
static java.lang.String |
getCompletionName(java.lang.reflect.Member m)
Completion name of a member. |
static java.lang.reflect.Constructor |
getConstructor(java.lang.Class o_clazz,
java.lang.Class[] arg_clazz,
boolean[] arg_is_null)
Attempts to find the best-matching constructor of the class
o_clazz with the parameter types arg_clazz |
static java.lang.String[] |
getFieldNames(java.lang.Class cl,
boolean staticRequired)
Returns the names of the fields of a given class |
static java.lang.String |
getFieldTypeName(java.lang.Class cl,
java.lang.String field)
|
static java.lang.reflect.Method |
getMethod(java.lang.Class o_clazz,
java.lang.String name,
java.lang.Class[] arg_clazz,
boolean[] arg_is_null)
Attempts to find the best-matching method of the class o_clazz with the method name name and arguments types defined by arg_clazz . |
static java.lang.String[] |
getMethodNames(java.lang.Class cl,
boolean staticRequired)
Returns the completion names of the methods of a given class. |
static java.lang.String[] |
getSimpleClassNames(java.lang.Object o,
boolean addConditionClasses)
Returns the list of simple class names of the object |
static java.lang.Class[] |
getStaticClasses(java.lang.Class cl)
Returns the static inner classes of the class |
static java.lang.reflect.Field[] |
getStaticFields(java.lang.Class cl)
Returns the static fields of the class |
static java.lang.reflect.Method[] |
getStaticMethods(java.lang.Class cl)
Returns the static methods of the class |
static boolean |
hasClass(java.lang.Object o,
java.lang.String name)
Checks if the class of the object has the given inner class. |
static boolean |
hasField(java.lang.Object o,
java.lang.String name)
Checks if the class of the object has the given field. |
static boolean |
hasMethod(java.lang.Object o,
java.lang.String name)
Checks if the class of the object has the given method. |
static java.lang.Object |
invokeMethod(java.lang.Class o_clazz,
java.lang.Object o,
java.lang.String name,
java.lang.Object[] args,
java.lang.Class[] clazzes)
Invoke a method of a given class
First the appropriate method is resolved by getMethod and
then invokes the method |
static boolean |
isStatic(java.lang.Class clazz)
Indicates if a class is static |
static boolean |
isStatic(java.lang.reflect.Member member)
Indicates if a member of a Class (field, method ) is static |
static java.lang.Object |
newInstance(java.lang.Class o_clazz,
java.lang.Object[] args,
java.lang.Class[] clazzes)
Object creator. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
RJavaTools
public RJavaTools()
getClass
public static java.lang.Class getClass(java.lang.Class cl,
java.lang.String name,
boolean staticRequired)
- Returns an inner class of the class with the given simple name
- Parameters:
cl
- classname
- simple name of the inner classstaticRequired
- boolean, if true
the inner class is required to be static
getStaticClasses
public static java.lang.Class[] getStaticClasses(java.lang.Class cl)
- Returns the static inner classes of the class
- Parameters:
cl
- class
- Returns:
- an array of classes or null if cl does not have static inner classes
isStatic
public static boolean isStatic(java.lang.Class clazz)
- Indicates if a class is static
- Parameters:
clazz
- class
- Returns:
- true if the class is static
getStaticFields
public static java.lang.reflect.Field[] getStaticFields(java.lang.Class cl)
- Returns the static fields of the class
- Parameters:
cl
- class
- Returns:
- an array of static fields
getStaticMethods
public static java.lang.reflect.Method[] getStaticMethods(java.lang.Class cl)
- Returns the static methods of the class
- Parameters:
cl
- class
- Returns:
- an array of static fields
getFieldNames
public static java.lang.String[] getFieldNames(java.lang.Class cl,
boolean staticRequired)
- Returns the names of the fields of a given class
- Parameters:
cl
- classstaticRequired
- if true only static fields are returned
- Returns:
- the public (and maybe only static) names of the fields.
getMethodNames
public static java.lang.String[] getMethodNames(java.lang.Class cl,
boolean staticRequired)
- Returns the completion names of the methods of a given class.
See the getMethodCompletionName method below
- Parameters:
cl
- classstaticRequired
- if true only static methods are returned
- Returns:
- the public (and maybe only static) names of the methods.
getCompletionName
public static java.lang.String getCompletionName(java.lang.reflect.Member m)
- Completion name of a member.
For fields, it just returns the name of the fields
For methods, this returns the name of the method
plus a suffix that depends on the number of arguments of the method.
The string "()" is added
if the method has no arguments, and the string "(" is added
if the method has one or more arguments.
isStatic
public static boolean isStatic(java.lang.reflect.Member member)
- Indicates if a member of a Class (field, method ) is static
- Parameters:
member
- class member
- Returns:
- true if the member is static
hasField
public static boolean hasField(java.lang.Object o,
java.lang.String name)
- Checks if the class of the object has the given field. The
getFields method of Class is used so only public fields are
checked
- Parameters:
o
- objectname
- name of the field
- Returns:
true
if the class of o
has the field name
hasClass
public static boolean hasClass(java.lang.Object o,
java.lang.String name)
- Checks if the class of the object has the given inner class. The
getClasses method of Class is used so only public classes are
checked
- Parameters:
o
- objectname
- (simple) name of the inner class
- Returns:
true
if the class of o
has the class name
classHasField
public static boolean classHasField(java.lang.Class cl,
java.lang.String name,
boolean staticRequired)
- Checks if the specified class has the given field. The
getFields method of Class is used so only public fields are
checked
- Parameters:
cl
- class objectname
- name of the fieldstaticRequired
- if true
then the field is required to be static
- Returns:
true
if the class cl
has the field name
classHasMethod
public static boolean classHasMethod(java.lang.Class cl,
java.lang.String name,
boolean staticRequired)
- Checks if the specified class has the given method. The
getMethods method of Class is used so only public methods are
checked
- Parameters:
cl
- classname
- name of the methodstaticRequired
- if true
then the method is required to be static
- Returns:
true
if the class cl
has the method name
classHasClass
public static boolean classHasClass(java.lang.Class cl,
java.lang.String name,
boolean staticRequired)
- Checks if the specified class has the given inner class. The
getClasses method of Class is used so only public classes are
checked
- Parameters:
cl
- classname
- name of the inner classstaticRequired
- if true
then the method is required to be static
- Returns:
true
if the class cl
has the field name
hasMethod
public static boolean hasMethod(java.lang.Object o,
java.lang.String name)
- Checks if the class of the object has the given method. The
getMethods method of Class is used so only public methods are
checked
- Parameters:
o
- objectname
- name of the method
- Returns:
true
if the class of o
has the field name
newInstance
public static java.lang.Object newInstance(java.lang.Class o_clazz,
java.lang.Object[] args,
java.lang.Class[] clazzes)
throws java.lang.Throwable
- Object creator. Find the best constructor based on the parameter classes
and invoke newInstance on the resolved constructor
- Throws:
java.lang.Throwable
invokeMethod
public static java.lang.Object invokeMethod(java.lang.Class o_clazz,
java.lang.Object o,
java.lang.String name,
java.lang.Object[] args,
java.lang.Class[] clazzes)
throws java.lang.Throwable
- Invoke a method of a given class
First the appropriate method is resolved by getMethod and
then invokes the method
- Throws:
java.lang.Throwable
getConstructor
public static java.lang.reflect.Constructor getConstructor(java.lang.Class o_clazz,
java.lang.Class[] arg_clazz,
boolean[] arg_is_null)
throws java.lang.SecurityException,
java.lang.NoSuchMethodException
- Attempts to find the best-matching constructor of the class
o_clazz with the parameter types arg_clazz
- Parameters:
o_clazz
- Class to look for a constructorarg_clazz
- parameter typesarg_is_null
- indicates if each argument is null
- Returns:
null
if no constructor is found, or the constructor
- Throws:
java.lang.SecurityException
java.lang.NoSuchMethodException
getMethod
public static java.lang.reflect.Method getMethod(java.lang.Class o_clazz,
java.lang.String name,
java.lang.Class[] arg_clazz,
boolean[] arg_is_null)
throws java.lang.SecurityException,
java.lang.NoSuchMethodException
- Attempts to find the best-matching method of the class
o_clazz
with the method name name
and arguments types defined by arg_clazz
.
The lookup is performed by finding the most specific methods that matches the supplied arguments (see also isMoreSpecific(java.lang.reflect.Method, java.lang.reflect.Method)
).
- Parameters:
o_clazz
- class in which to look for the methodname
- method namearg_clazz
- an array of classes defining the types of argumentsarg_is_null
- indicates if each argument is null
- Returns:
null
if no matching method could be found or the best matching method.
- Throws:
java.lang.SecurityException
java.lang.NoSuchMethodException
getClasses
public static java.lang.Class[] getClasses(java.lang.Object o)
- Returns the list of classes of the object
- Parameters:
o
- an Object
getClassNames
public static java.lang.String[] getClassNames(java.lang.Object o)
- Returns the list of class names of the object
- Parameters:
o
- an Object
getSimpleClassNames
public static java.lang.String[] getSimpleClassNames(java.lang.Object o,
boolean addConditionClasses)
- Returns the list of simple class names of the object
- Parameters:
o
- an Object
getFieldTypeName
public static java.lang.String getFieldTypeName(java.lang.Class cl,
java.lang.String field)
- Parameters:
cl
- classfield
- name of the field
- Returns:
- the class name of the field of the class (or null)
if the class does not have the given field)