java.lang.Object
- com.jogamp.gluegen.JavaType

```
public class JavaType
extends Object
```
Describes a java-side representation of a type that is used to represent the same data on both the Java-side and C-side during a JNI operation. Also contains some utility methods for creating common types.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static StringBuilder`	`appendDescriptor(StringBuilder buf, Class<?> c, boolean useTrueType)`	Appends the descriptor (internal type signature) corresponding to the given Class c.
`static StringBuilder`	`appendJNIDescriptor(StringBuilder res, Class<?> c, boolean useTrueType)`	Appends the native (JNI) method-name descriptor corresponding to the given Class c, i.e.
`Object`	`clone()`
`static JavaType`	`createForCArray(Type elementType)`	Creates a JavaType corresponding to an array of the given element type.
`static JavaType`	`createForCCharPointer()`
`static JavaType`	`createForCDoublePointer()`
`static JavaType`	`createForCFloatPointer()`
`static JavaType`	`createForCInt32Pointer()`
`static JavaType`	`createForCInt64Pointer()`
`static JavaType`	`createForClass(Class<?> clazz)`	Creates a JavaType corresponding to the given Java type.
`static JavaType`	`createForCShortPointer()`
`static JavaType`	`createForCStruct(String name)`	Creates a JavaType corresponding to the specified C CompoundType name; for example, if "Foo" is supplied, then this JavaType represents a "Foo *" by way of a StructAccessor.
`static JavaType`	`createForCVoidPointer()`
`static JavaType`	`createForJNIEnv()`
`static JavaType`	`createForNamedClass(String name)`	Creates a JavaType corresponding to the given named Java class, not necessarily existing yet.
`static JavaType`	`createForOpaqueClass(Class<?> clazz)`	Creates a JavaType corresponding to the given opaque Java type.
`static JavaType`	`createForStringClass(Class<?> clazz, boolean pascalString)`
`boolean`	`equals(Object arg)`
`static JavaType`	`forNIOBufferClass()`
`static JavaType`	`forNIOByteBufferArrayClass()`
`static JavaType`	`forNIOByteBufferClass()`
`static JavaType`	`forNIODoubleBufferClass()`
`static JavaType`	`forNIOFloatBufferClass()`
`static JavaType`	`forNIOIntBufferClass()`
`static JavaType`	`forNIOLongBufferClass()`
`static JavaType`	`forNIOPointerBufferClass()`
`static JavaType`	`forNIOShortBufferClass()`
`static JavaType`	`forObjectClass()`
`String`	`getDebugString()`
`String`	`getDescriptor()`	Returns the descriptor (internal type signature) corresponding to this type.
`String`	`getDescriptor(JavaConfiguration cfg)`
`Type`	`getElementCType()`
`JavaType`	`getElementType()`
`Class<?>`	`getJavaClass()`	Returns the Java Class corresponding to this type.
`String`	`getJNIMethodDesciptor()`	Returns the native (JNI) method-name descriptor corresponding to this type, i.e.
`String`	`getName()`	Returns the Java type name corresponding to this type.
`String`	`getName(JavaConfiguration cfg)`
`StringBuilder`	`getSignature(StringBuilder sb)`
`int`	`hashCode()`
`boolean`	`isArray()`
`boolean`	`isArrayOfCompoundTypeWrappers()`
`boolean`	`isByte()`
`boolean`	`isByteArray()`
`boolean`	`isCCharPointerType()`
`boolean`	`isCDoublePointerType()`
`boolean`	`isCFloatPointerType()`
`boolean`	`isCInt32PointerType()`
`boolean`	`isCInt64PointerType()`
`boolean`	`isCompoundTypeWrapper()`
`boolean`	`isCPrimitivePointerType()`
`boolean`	`isCShortPointerType()`
`boolean`	`isCVoidPointerType()`
`boolean`	`isDouble()`
`boolean`	`isDoubleArray()`
`boolean`	`isFloat()`
`boolean`	`isFloatArray()`
`boolean`	`isInt()`
`boolean`	`isIntArray()`
`boolean`	`isJNIEnv()`
`boolean`	`isLong()`
`boolean`	`isLongArray()`
`boolean`	`isNamedClass()`
`boolean`	`isNIOBuffer()`
`boolean`	`isNIOBufferArray()`
`boolean`	`isNIOByteBuffer()`
`boolean`	`isNIOByteBufferArray()`
`boolean`	`isNIOLongBuffer()`
`boolean`	`isNIOPointerBuffer()`
`boolean`	`isOpaqued()`
`boolean`	`isPascalString()`
`boolean`	`isPascalStringArray()`
`boolean`	`isPascalStringVariant()`
`boolean`	`isPrimitive()`
`boolean`	`isPrimitiveArray()`
`boolean`	`isShort()`
`boolean`	`isShortArray()`
`boolean`	`isString()`
`boolean`	`isStringArray()`
`boolean`	`isVoid()`
`String`	`jniTypeName()`	Returns the String corresponding to the JNI type for this type, or NULL if it can't be represented (i.e., it's a boxing class that we need to call getBuffer() on.)
`static String`	`toJNIMethodDescriptor(String descriptor)`	Converts the assumed descriptor (internal type signature) to a native (JNI) method-name descriptor, i.e.
`static StringBuilder`	`toJNIMethodDescriptor(StringBuilder descriptor, int start)`	Converts the assumed descriptor (internal type signature) to a native (JNI) method-name descriptor, i.e.
`String`	`toString()`

Methods inherited from class java.lang.Object
finalize, getClass, notify, notifyAll, wait, wait, wait

- Method Detail
  - equals
```
public boolean equals(Object arg)
```
    Overrides:
    
    equals in class Object
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class Object
  - getElementType
```
public JavaType getElementType()
```
  - getElementCType
```
public Type getElementCType()
```
  - createForOpaqueClass
```
public static JavaType createForOpaqueClass(Class<?> clazz)
```
    Creates a JavaType corresponding to the given opaque Java type. This can be used to represent arrays of primitive values or Strings; the emitters understand how to perform proper conversion from the corresponding C type.
  - createForClass
```
public static JavaType createForClass(Class<?> clazz)
```
    Creates a JavaType corresponding to the given Java type. This can be used to represent arrays of primitive values or Strings; the emitters understand how to perform proper conversion from the corresponding C type.
  - createForStringClass
```
public static JavaType createForStringClass(Class<?> clazz,
                                            boolean pascalString)
```
  - createForNamedClass
```
public static JavaType createForNamedClass(String name)
```
    Creates a JavaType corresponding to the given named Java class, not necessarily existing yet.
  - createForCStruct
```
public static JavaType createForCStruct(String name)
```
    Creates a JavaType corresponding to the specified C CompoundType name; for example, if "Foo" is supplied, then this JavaType represents a "Foo *" by way of a StructAccessor.
  - createForCArray
```
public static JavaType createForCArray(Type elementType)
```
    Creates a JavaType corresponding to an array of the given element type. This is used to represent arrays of "Foo **" which should be mapped to Foo[] in Java.
  - createForCVoidPointer
```
public static JavaType createForCVoidPointer()
```
  - createForCCharPointer
```
public static JavaType createForCCharPointer()
```
  - createForCShortPointer
```
public static JavaType createForCShortPointer()
```
  - createForCInt32Pointer
```
public static JavaType createForCInt32Pointer()
```
  - createForCInt64Pointer
```
public static JavaType createForCInt64Pointer()
```
  - createForCFloatPointer
```
public static JavaType createForCFloatPointer()
```
  - createForCDoublePointer
```
public static JavaType createForCDoublePointer()
```
  - createForJNIEnv
```
public static JavaType createForJNIEnv()
```
  - forObjectClass
```
public static JavaType forObjectClass()
```
  - forNIOBufferClass
```
public static JavaType forNIOBufferClass()
```
  - forNIOByteBufferClass
```
public static JavaType forNIOByteBufferClass()
```
  - forNIOShortBufferClass
```
public static JavaType forNIOShortBufferClass()
```
  - forNIOIntBufferClass
```
public static JavaType forNIOIntBufferClass()
```
  - forNIOLongBufferClass
```
public static JavaType forNIOLongBufferClass()
```
  - forNIOPointerBufferClass
```
public static JavaType forNIOPointerBufferClass()
```
  - forNIOFloatBufferClass
```
public static JavaType forNIOFloatBufferClass()
```
  - forNIODoubleBufferClass
```
public static JavaType forNIODoubleBufferClass()
```
  - forNIOByteBufferArrayClass
```
public static JavaType forNIOByteBufferArrayClass()
```
  - getJavaClass
```
public Class<?> getJavaClass()
```
    Returns the Java Class corresponding to this type. Returns null if this object corresponds to a C primitive array type.
  - getName
```
public String getName()
```
    Returns the Java type name corresponding to this type.
  - getName
```
public String getName(JavaConfiguration cfg)
```
  - getDescriptor
```
public String getDescriptor()
```
    Returns the descriptor (internal type signature) corresponding to this type.
  - getDescriptor
```
public String getDescriptor(JavaConfiguration cfg)
```
  - getJNIMethodDesciptor
```
public String getJNIMethodDesciptor()
```
    Returns the native (JNI) method-name descriptor corresponding to this type, i.e. replacing chars getDescriptor() as follows
    
    `_` -> `_1`
    
    `/` -> `_`
    
    `;` -> `_2`
    
    `[` -> `_3`
    See Also:
    
    Spec 2, Chapter 2, Resolving Native Method Names, toJNIMethodDescriptor(String)
  - appendDescriptor
```
public static StringBuilder appendDescriptor(StringBuilder buf,
                                             Class<?> c,
                                             boolean useTrueType)
```
    Appends the descriptor (internal type signature) corresponding to the given Class c.
    
    Parameters:
    
    buf - the StringBuilder sink
    
    c - the Class to append the descriptor for
    
    useTrueType - if true, use the actual Class name for non primitives, otherwise java.lang.Object will be used (flattened)
    
    Returns:
    
    the given StringBuilder sink for chaining
  - appendJNIDescriptor
```
public static StringBuilder appendJNIDescriptor(StringBuilder res,
                                                Class<?> c,
                                                boolean useTrueType)
```
    Appends the native (JNI) method-name descriptor corresponding to the given Class c, i.e. replacing chars appendDescriptor(StringBuilder, Class, boolean) as follows
    
    `_` -> `_1`
    
    `/` -> `_`
    
    `;` -> `_2`
    
    `[` -> `_3`
    
    Only the newly appended segment to the StringBuilder sink will be converted to (JNI) method-name using toJNIMethodDescriptor(StringBuilder, int).
    Parameters:
    
    buf - the StringBuilder sink
    
    c - the Class to append the descriptor for
    
    useTrueType - if true, use the actual Class name for non primitives, otherwise java.lang.Object will be used (flattened)
    
    Returns:
    
    the given StringBuilder sink for chaining
    
    See Also:
    
    Spec 2, Chapter 2, Resolving Native Method Names, #toJNIMethodDescriptor(StringBuilder)
  - toJNIMethodDescriptor
```
public static String toJNIMethodDescriptor(String descriptor)
```
    Converts the assumed descriptor (internal type signature) to a native (JNI) method-name descriptor, i.e. replacing chars getDescriptor() as follows
    
    `_` -> `_1`
    
    `/` -> `_`
    
    `;` -> `_2`
    
    `[` -> `_3`
    Parameters:
    
    descriptor - the char sequence holding the original descriptor
    
    See Also:
    
    Spec 2, Chapter 2, Resolving Native Method Names
  - toJNIMethodDescriptor
```
public static StringBuilder toJNIMethodDescriptor(StringBuilder descriptor,
                                                  int start)
```
    Converts the assumed descriptor (internal type signature) to a native (JNI) method-name descriptor, i.e. replacing chars getDescriptor() as follows
    
    `_` -> `_1`
    
    `/` -> `_`
    
    `;` -> `_2`
    
    `[` -> `_3`
    Parameters:
    
    descriptor - the char buffer holding the original descriptor
    
    start - start position of the segment to convert, use 0 if whole buffr shall be converted
    
    Returns:
    
    returns passed descriptor buffer for chaining
    
    See Also:
    
    Spec 2, Chapter 2, Resolving Native Method Names
  - jniTypeName
```
public String jniTypeName()
```
    Returns the String corresponding to the JNI type for this type, or NULL if it can't be represented (i.e., it's a boxing class that we need to call getBuffer() on.)
  - isOpaqued
```
public boolean isOpaqued()
```
  - isNIOBuffer
```
public boolean isNIOBuffer()
```
  - isNIOByteBuffer
```
public boolean isNIOByteBuffer()
```
  - isNIOByteBufferArray
```
public boolean isNIOByteBufferArray()
```
  - isNIOBufferArray
```
public boolean isNIOBufferArray()
```
  - isNIOLongBuffer
```
public boolean isNIOLongBuffer()
```
  - isNIOPointerBuffer
```
public boolean isNIOPointerBuffer()
```
  - isString
```
public boolean isString()
```
  - isPascalStringVariant
```
public boolean isPascalStringVariant()
```
  - isPascalString
```
public boolean isPascalString()
```
  - isArray
```
public boolean isArray()
```
  - isFloatArray
```
public boolean isFloatArray()
```
  - isDoubleArray
```
public boolean isDoubleArray()
```
  - isByteArray
```
public boolean isByteArray()
```
  - isIntArray
```
public boolean isIntArray()
```
  - isShortArray
```
public boolean isShortArray()
```
  - isLongArray
```
public boolean isLongArray()
```
  - isStringArray
```
public boolean isStringArray()
```
  - isPascalStringArray
```
public boolean isPascalStringArray()
```
  - isPrimitive
```
public boolean isPrimitive()
```
  - isPrimitiveArray
```
public boolean isPrimitiveArray()
```
  - isShort
```
public boolean isShort()
```
  - isFloat
```
public boolean isFloat()
```
  - isDouble
```
public boolean isDouble()
```
  - isByte
```
public boolean isByte()
```
  - isLong
```
public boolean isLong()
```
  - isInt
```
public boolean isInt()
```
  - isVoid
```
public boolean isVoid()
```
  - isNamedClass
```
public boolean isNamedClass()
```
  - isCompoundTypeWrapper
```
public boolean isCompoundTypeWrapper()
```
  - isArrayOfCompoundTypeWrappers
```
public boolean isArrayOfCompoundTypeWrappers()
```
  - isCPrimitivePointerType
```
public boolean isCPrimitivePointerType()
```
  - isCVoidPointerType
```
public boolean isCVoidPointerType()
```
  - isCCharPointerType
```
public boolean isCCharPointerType()
```
  - isCShortPointerType
```
public boolean isCShortPointerType()
```
  - isCInt32PointerType
```
public boolean isCInt32PointerType()
```
  - isCInt64PointerType
```
public boolean isCInt64PointerType()
```
  - isCFloatPointerType
```
public boolean isCFloatPointerType()
```
  - isCDoublePointerType
```
public boolean isCDoublePointerType()
```
  - isJNIEnv
```
public boolean isJNIEnv()
```
  - clone
```
public Object clone()
```
    Overrides:
    
    clone in class Object
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object
  - getSignature
```
public final StringBuilder getSignature(StringBuilder sb)
```
  - getDebugString
```
public String getDebugString()
```

Class JavaType

Method Summary

Methods inherited from class java.lang.Object

Method Detail

equals

hashCode

getElementType

getElementCType

createForOpaqueClass

createForClass

createForStringClass

createForNamedClass

createForCStruct

createForCArray

createForCVoidPointer

createForCCharPointer

createForCShortPointer

createForCInt32Pointer

createForCInt64Pointer

createForCFloatPointer

createForCDoublePointer

createForJNIEnv

forObjectClass

forNIOBufferClass

forNIOByteBufferClass

forNIOShortBufferClass

forNIOIntBufferClass

forNIOLongBufferClass

forNIOPointerBufferClass

forNIOFloatBufferClass

forNIODoubleBufferClass

forNIOByteBufferArrayClass

getJavaClass

getName

getName

getDescriptor

getDescriptor

getJNIMethodDesciptor

appendDescriptor

appendJNIDescriptor

toJNIMethodDescriptor

toJNIMethodDescriptor

jniTypeName

isOpaqued

isNIOBuffer

isNIOByteBuffer

isNIOByteBufferArray

isNIOBufferArray

isNIOLongBuffer

isNIOPointerBuffer

isString

isPascalStringVariant

isPascalString

isArray

isFloatArray

isDoubleArray

isByteArray

isIntArray

isShortArray

isLongArray

isStringArray

isPascalStringArray

isPrimitive

isPrimitiveArray

isShort

isFloat

isDouble

isByte

isLong

isInt

isVoid

isNamedClass

isCompoundTypeWrapper

isArrayOfCompoundTypeWrappers

isCPrimitivePointerType

isCVoidPointerType

isCCharPointerType

isCShortPointerType

isCInt32PointerType

isCInt64PointerType