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Java Source Code / Java Documentation » Database DBMS » db4o 6.4 » EDU.purdue.cs.bloat.file 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   EDU.purdue.cs.bloat.file.Attribute
      EDU.purdue.cs.bloat.file.Code

Code
public class Code extends Attribute (Code)
Code is used to store the Code attribute of a method in a class file. The Code attribute stores the raw bytecode of the method, the maximum stack height and maximum number of locals used by the method, and the exception handlers used in the method. Code may have several attributes. The local variable table and the line number table are modeled explicitly. All other attributes are modeled as generic attributes.
See Also:   EDU.purdue.cs.bloat.reflect.Catch
See Also:    Catch
See Also:   GenericAttribute
See Also:   EDU.purdue.cs.bloat.reflect.LineNumberDebugInfo
See Also:   LocalVariableTable
author:
   Nate Nystrom (author:
   href="mailto:nystrom@cs.purdue.edu">nystrom@cs.purdue.edu)



Constructor Summary
 Code(ClassInfo classInfo, int codeIndex)
    
public  Code(ClassInfo classInfo, DataInputStream in, int index, int len)
     Constructor.

Method Summary
public  Objectclone()
    
public  byte[]code()
     Get the bytes of the code.
public  intcodeLength()
    
public  Catch[]exceptionHandlers()
     Get the exception handlers in the method.
public  intlength()
     Get the length of the attribute.
public  LineNumberDebugInfo[]lineNumbers()
     Get the line number debug info for the code.
public  LocalDebugInfo[]locals()
     Get the local variable debug info for the code.
public  intmaxLocals()
     Get the maximum number of locals used by the code.
public  intmaxStack()
     Get the maximum height of the operand stack used by the code.
public  voidsetCode(byte[] code)
     Set the bytes of the code.
public  voidsetExceptionHandlers(Catch[] handlers)
     Set the exception handlers in the method.
public  voidsetLineNumbers(LineNumberDebugInfo[] lineNumbers)
     Set the line number debug info for the code.
public  voidsetLocals(LocalDebugInfo[] locals)
     Set the local variable debug info for the code.
public  voidsetMaxLocals(int maxLocals)
     Set the maximum number of locals used by the code.
public  voidsetMaxStack(int maxStack)
     Set the maximum height of the operand stack used by the code.
public  StringtoString()
     Returns a string representation of the attribute.
public  voidwriteData(DataOutputStream out)
     Write the attribute to a data stream.


Constructor Detail
Code
Code(ClassInfo classInfo, int codeIndex)(Code)
Constructor for creating a Code from scratch
Parameters:
  codeIndex - The index in the constant pool for the UTF8 "Code"



Code
public Code(ClassInfo classInfo, DataInputStream in, int index, int len) throws IOException(Code)
Constructor. Create a Code attribute from a data stream.
Parameters:
  in - The data stream containing the class file.
Parameters:
  index - The index into the constant pool of the name of the attribute.
Parameters:
  len - The length of the attribute, excluding the header.
exception:
  IOException - If an error occurs while reading.




Method Detail
clone
public Object clone()(Code)



code
public byte[] code()(Code)
Get the bytes of the code. The code.



codeLength
public int codeLength()(Code)
Return the length of the code array



exceptionHandlers
public Catch[] exceptionHandlers()(Code)
Get the exception handlers in the method. The handlers.



length
public int length()(Code)
Get the length of the attribute. The length of the attribute.



lineNumbers
public LineNumberDebugInfo[] lineNumbers()(Code)
Get the line number debug info for the code. The line number debug info for the code.



locals
public LocalDebugInfo[] locals()(Code)
Get the local variable debug info for the code. The local variable debug info for the code.



maxLocals
public int maxLocals()(Code)
Get the maximum number of locals used by the code. The maximum number of locals.



maxStack
public int maxStack()(Code)
Get the maximum height of the operand stack used by the code. The maximum number of locals.



setCode
public void setCode(byte[] code)(Code)
Set the bytes of the code.
Parameters:
  code - The code.



setExceptionHandlers
public void setExceptionHandlers(Catch[] handlers)(Code)
Set the exception handlers in the method.
Parameters:
  handlers - The handlers.



setLineNumbers
public void setLineNumbers(LineNumberDebugInfo[] lineNumbers)(Code)
Set the line number debug info for the code.
Parameters:
  lineNumbers - The line number debug info for the code.



setLocals
public void setLocals(LocalDebugInfo[] locals)(Code)
Set the local variable debug info for the code.
Parameters:
  locals - The local variable debug info for the code.



setMaxLocals
public void setMaxLocals(int maxLocals)(Code)
Set the maximum number of locals used by the code.
Parameters:
  maxLocals - The maximum number of locals.



setMaxStack
public void setMaxStack(int maxStack)(Code)
Set the maximum height of the operand stack used by the code.
Parameters:
  maxStack - The maximum height of the stack.



toString
public String toString()(Code)
Returns a string representation of the attribute.



writeData
public void writeData(DataOutputStream out) throws IOException(Code)
Write the attribute to a data stream.
Parameters:
  out - The data stream of the class file.
exception:
  IOException - If an error occurs while writing.



Fields inherited from EDU.purdue.cs.bloat.file.Attribute
protected int length(Code)(Java Doc)
protected int nameIndex(Code)(Java Doc)

Methods inherited from EDU.purdue.cs.bloat.file.Attribute
public Object clone()(Code)(Java Doc)
public int length()(Code)(Java Doc)
public int nameIndex()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
abstract public void writeData(DataOutputStream out) throws IOException(Code)(Java Doc)

Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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