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## com.sun.squawk.debugger
Class DataType.FrameID

    java.lang.Object
      com.sun.squawk.debugger.DataType
          com.sun.squawk.debugger.DataType.FrameID

Enclosing class:
  DataType

    public static final class DataType.FrameID

extends DataType

Represents JDWP identifiers for individual stack frames.

Nested Class Summary

Nested classes/interfaces inherited from class com.sun.squawk.debugger.DataType
`DataType.FieldID, DataType.FrameID, DataType.Location, DataType.MethodID, DataType.ObjectID, DataType.ReferenceTypeID, DataType.TaggedObjectID`

Field Summary
`int` | `frame` The position of the frame within the call stack.
`static int` | `SIZE` The size (in bytes) of this identifier as sent over a JDWP connection.
`DataType.ObjectID` | `threadID` The JDWP of the thread owning this frame.

Constructor Summary
`DataType.FrameID(DataType.ObjectID thread, int frame)`

Method Summary
`boolean` | `equals(Object o)` Indicates whether some other object is "equal to" this one.
`int` | `hashCode()` Returns a hash code value for the object.
`String` | `toString()` Returns a string representation of the object.

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

Field Detail

### SIZE

    public static final int SIZE

  The size (in bytes) of this identifier as sent over a JDWP connection.

  See Also:
    Constant Field Values

### threadID

    public final DataType.ObjectID threadID

  The JDWP of the thread owning this frame.

### frame

    public final int frame

  The position of the frame within the call stack. The inner most frame has position 0, it's caller has position 1 etc.

Constructor Detail

### DataType.FrameID

    public DataType.FrameID(DataType.ObjectID thread,
                            int frame)

Method Detail

### equals

    public boolean equals(Object o)

  Indicates whether some other object is "equal to" this one.

  The `equals` method implements an equivalence relation:

  - It is reflexive: for any reference value `x`, `x.equals(x)` should return `true`.
  - It is symmetric: for any reference values `x` and `y`, `x.equals(y)` should return `true` if and only if `y.equals(x)` returns `true`.
  - It is transitive: for any reference values `x`, `y`, and `z`, if `x.equals(y)` returns `true` and `y.equals(z)` returns `true`, then `x.equals(z)` should return `true`.
  - It is consistent: for any reference values `x` and `y`, multiple invocations of `x.equals(y)` consistently return `true` or consistently return `false`, provided no information used in `equals` comparisons on the object is modified.
  - For any non-null reference value `x`, `x.equals(null)` should return `false`.

  The `equals` method for class `Object` implements the most discriminating possible equivalence relation on objects; that is, for any reference values `x` and `y`, this method returns `true` if and only if `x` and `y` refer to the same object (`x==y` has the value `true`).

  Specified by:
    `equals` in class `DataType`
  Parameters:
    `o` - the reference object with which to compare.
  Returns:
    `true` if this object is the same as the obj argument; `false` otherwise.
  See Also:
    `Boolean.hashCode()`, `Hashtable`

### hashCode

    public int hashCode()

  Returns a hash code value for the object. This method is supported for the benefit of hashtables such as those provided by `java.util.Hashtable`.

  The general contract of `hashCode` is:

  - Whenever it is invoked on the same object more than once during an execution of a Java application, the `hashCode` method must consistently return the same integer, provided no information used in `equals` comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
  - If two objects are equal according to the `equals(Object)` method, then calling the `hashCode` method on each of the two objects must produce the same integer result.
  - It is not required that if two objects are unequal according to the `Object.equals(java.lang.Object)` method, then calling the `hashCode` method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hashtables.

  As much as is reasonably practical, the hashCode method defined by class `Object` does return distinct integers for distinct objects. (This is typically implemented by converting the internal address of the object into an integer, but this implementation technique is not required by the JavaTM programming language.)

  Specified by:
    `hashCode` in class `DataType`
  Returns:
    a hash code value for this object.
  See Also:
    `Object.equals(java.lang.Object)`, `Hashtable`

### toString

    public String toString()

  Returns a string representation of the object. In general, the `toString` method returns a string that "textually represents" this object. The result should be a concise but informative representation that is easy for a person to read. It is recommended that all subclasses override this method.

  The `toString` method for class `Object` returns a string consisting of the name of the class of which the object is an instance, the at-sign character ``@`', and the unsigned hexadecimal representation of the hash code of the object. In other words, this method returns a string equal to the value of:

  >      getClass().getName() + '@' + Integer.toHexString(hashCode())

  Specified by:
    `toString` in class `DataType`
  Returns:
    a string representation of the object.

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