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com.voytechs.jnetstream.npl
Class ArrayDimensionNode  

java.lang.Object
  com.voytechs.jnetstream.npl.Node
      com.voytechs.jnetstream.npl.NodeList
          com.voytechs.jnetstream.npl.ArrayDimensionNode

All Implemented Interfaces:

Visitable

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public class ArrayDimensionNode

extends NodeList

Support class that allows muti-dimensional array manipulation. Since array references can have dynamic code associated with array lookup, a number of convenience functions are performed by the class. 1) Bounds checking for MAX and MIN bounds for all dimensions. 2) Node traversal for each dimension 3) Scalar array size computation which also needs to be done at run time because of dynamic code.

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Field Summary
private  boolean	constantDimension
private static boolean	debug
private  int	scalarSize

 

Fields inherited from class com.voytechs.jnetstream.npl.NodeList

 

Fields inherited from class com.voytechs.jnetstream.npl.Node

token

 

Constructor Summary

ArrayDimensionNode()

 

Method Summary
int	calculateArraySize()
protected static int	calculateArraySize(ArrayDimensionNode max, int level)
int	calculateScalarSize(ArrayDimensionNode dim)           Calculates the scalar dimension of the entire array.
protected static int	calculateScalarSize(ArrayDimensionNode max, ArrayDimensionNode dim)
boolean	checkBoundary(ArrayDimensionNode dim)           Checks that "dim" is within allocated limits of the array dimension.
java.lang.String	createLabel(int scalar)
ArrayDimensionNode	evaluateToStatic()           This method evaluates the code to its NodeInt equivelent and creates a new Dimension object with static values.
static void	main(java.lang.String[] args)           Test function for ArrayDimensionNode
int	toScalar()
int	toScalar(ArrayDimensionNode dim)           Returns the scalar equivelent value of the entire array.

 

Methods inherited from class com.voytechs.jnetstream.npl.NodeList

add, add, addFirst, addLast, canOptimize, clear, contains, empty, get, getBoolean, getFirst, getInt, getLast, getString, indexOf, merge, optimize, remove, remove, size, toString, visit

 

Methods inherited from class com.voytechs.jnetstream.npl.Node

getToken, setToken

 

Methods inherited from class java.lang.Object

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

 

Field Detail

debug

private static final boolean debug

See Also:

Constant Field Values

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constantDimension

private boolean constantDimension

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scalarSize

private int scalarSize

Constructor Detail

ArrayDimensionNode

public ArrayDimensionNode()

Method Detail

toScalar

public int toScalar(ArrayDimensionNode dim)
             throws NodeException

Returns the scalar equivelent value of the entire array. Since the value has to be evaluated dynamically, there some caching of the value is done to improve performance.

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toScalar

public int toScalar()
             throws NodeException

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calculateScalarSize

public int calculateScalarSize(ArrayDimensionNode dim)
                        throws NodeException

Calculates the scalar dimension of the entire array. This is how many elements the array takes overall.

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calculateScalarSize

protected static int calculateScalarSize(ArrayDimensionNode max,
                                         ArrayDimensionNode dim)
                                  throws NodeException

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calculateArraySize

public int calculateArraySize()
                       throws NodeException

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calculateArraySize

protected static int calculateArraySize(ArrayDimensionNode max,
                                        int level)
                                 throws NodeException

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createLabel

public java.lang.String createLabel(int scalar)
                             throws NodeException

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checkBoundary

public boolean checkBoundary(ArrayDimensionNode dim)
                      throws NodeException

Checks that "dim" is within allocated limits of the array dimension.

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evaluateToStatic

public ArrayDimensionNode evaluateToStatic()
                                    throws NodeException

This method evaluates the code to its NodeInt equivelent and creates a new Dimension object with static values. This is needed for when arrays are first instantiated, the dynamic code can only be run once, otherwise array dimensions could suddenly change on us. Make sure this method is called only when all the reference have been resolved and context loaded with primitives. Otherwise an NodeException will be thrown if references can not be properly dereferenced.

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main

public static void main(java.lang.String[] args)

Test function for ArrayDimensionNode

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Home >> All >> com >> voytechs >> jnetstream >> [ npl overview ]	PREV CLASS  NEXT CLASS
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