* Some examples of where values may be accessed: *
**
* {@link ObjectReference#getValue(com.sun.jdi.Field) * ObjectReference.getValue(Field)} * - value of a field * * {@link StackFrame#getValue(com.sun.jdi.LocalVariable) * StackFrame.getValue(LocalVariable)} * - value of a variable * * {@link VirtualMachine#mirrorOf(double) * VirtualMachine.mirrorOf(double)} * - created in the target VM by the JDI client * * {@link com.sun.jdi.event.ModificationWatchpointEvent#valueToBe() * ModificationWatchpointEvent.valueToBe()} * - returned with an event *
* The following table illustrates which subinterfaces of Value * are used to mirror values in the target VM -- *
| Subinterfaces of {@link PrimitiveValue} | *|||
|---|---|---|---|
| Kind of value | *For example - expression in target |
* Is mirrored as an instance of |
* {@link Type} of value {@link #type() Value.type()} |
*
| a boolean | *{@code true} | *{@link BooleanValue} | *{@link BooleanType} | *
| a byte | *{@code (byte)4} | *{@link ByteValue} | *{@link ByteType} | *
| a char | *{@code 'a'} | *{@link CharValue} | *{@link CharType} | *
| a double | *{@code 3.1415926} | *{@link DoubleValue} | *{@link DoubleType} | *
| a float | *{@code 2.5f} | *{@link FloatValue} | *{@link FloatType} | *
| an int | *{@code 22} | *{@link IntegerValue} | *{@link IntegerType} | *
| a long | *{@code 1024L} | *{@link LongValue} | *{@link LongType} | *
| a short | *{@code (short)12} | *{@link ShortValue} | *{@link ShortType} | *
| a void | ** | {@link VoidValue} | *{@link VoidType} | *
| Subinterfaces of {@link ObjectReference} | *|||
| Kind of value | *For example - expression in target |
* Is mirrored as an instance of |
* {@link Type} of value {@link #type() Value.type()} |
*
| a class instance | *{@code this} | *{@link ObjectReference} | *{@link ClassType} | *
| an array | *{@code new int[5]} | *{@link ArrayReference} | *{@link ArrayType} | *
| a string | *{@code "hello"} | *{@link StringReference} | *{@link ClassType} | *
| a thread | *{@code Thread.currentThread()} | *{@link ThreadReference} | *{@link ClassType} | *
| a thread group | * {@code Thread.currentThread()} {@code .getThreadGroup()} |
* {@link ThreadGroupReference} | *{@link ClassType} | *
| a {@code java.lang.Class} instance |
* {@code this.getClass()} | *{@link ClassObjectReference} | *{@link ClassType} | *
| a class loader | * {@code this.getClass()} {@code .getClassLoader()} |
* {@link ClassLoaderReference} | *{@link ClassType} | *
| Other | *|||
| Kind of value | *For example - expression in target |
* Is mirrored as | *{@link Type} of value | *
| null | *{@code null} | *{@code null} | *n/a | *