org.redline_rpm.header

Class AbstractHeader.AbstractEntry<T>

java.lang.Object

org.redline_rpm.header.AbstractHeader.AbstractEntry<T>

All Implemented Interfaces:

AbstractHeader.Entry<T>

Enclosing class:

AbstractHeader

public abstract class AbstractHeader.AbstractEntry<T>
extends Object
implements AbstractHeader.Entry<T>

Field Summary

Fields

Modifier and Type	Field and Description
protected int	count
protected int	offset
protected int	size
protected int	tag
protected T	values

Constructor Summary

Constructors

Constructor and Description
AbstractHeader.AbstractEntry()

Method Summary

Methods

Modifier and Type	Method and Description
int	getOffset(int offset)
int	getTag()
abstract int	getType() Returns the data type of this entry.
T	getValues()
void	incCount(int count)
void	index(ByteBuffer index, int position) Writes the index entry into the provided buffer at the current position.
abstract void	read(ByteBuffer buffer) Reads this entries value from the provided buffer using the set count.
boolean	ready() Returns true if this entry is ready to write, indicated by the presence of a set of values.
void	setCount(int count)
void	setOffset(int offset)
void	setSize(int size)
void	setTag(AbstractHeader.Tag tag)
void	setTag(int tag)
void	setValues(T values)
abstract int	size() Returns the size this entry will need in the provided data buffer to write it's contents, corrected for any trailing zeros to fill to a boundary.
String	toString()
protected abstract void	typeCheck(T values) Fails fast if Tag and T are not compatible.
abstract void	write(ByteBuffer data) Writes this entries index to the index buffer and its values to the output channel provided.

Methods inherited from class java.lang.Object

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

Field Detail

size

protected int size

tag

protected int tag

count

protected int count

offset

protected int offset

values

protected T values

Constructor Detail

AbstractHeader.AbstractEntry

public AbstractHeader.AbstractEntry()

Method Detail

setTag

public void setTag(AbstractHeader.Tag tag)

setTag

public void setTag(int tag)

Specified by:

setTag in interface AbstractHeader.Entry<T>

setSize

public void setSize(int size)

Specified by:

setSize in interface AbstractHeader.Entry<T>

setCount

public void setCount(int count)

Specified by:

setCount in interface AbstractHeader.Entry<T>

incCount

public void incCount(int count)

Specified by:

incCount in interface AbstractHeader.Entry<T>

setOffset

public void setOffset(int offset)

Specified by:

setOffset in interface AbstractHeader.Entry<T>

typeCheck

protected abstract void typeCheck(T values)

Fails fast if Tag and T are not compatible.

Parameters:

values -

Throws:

ClassCastException - - if the type of values is not compatible with the type required by tag.type()

setValues

public void setValues(T values)

Specified by:

setValues in interface AbstractHeader.Entry<T>

Parameters:

values -

Throws:

ClassCastException - - if the type of values is not compatible with the type required by tag.type()

getValues

public T getValues()

Specified by:

getValues in interface AbstractHeader.Entry<T>

getTag

public int getTag()

Specified by:

getTag in interface AbstractHeader.Entry<T>

getOffset

public int getOffset(int offset)

Specified by:

getOffset in interface AbstractHeader.Entry<T>

ready

public boolean ready()

Returns true if this entry is ready to write, indicated by the presence of a set of values.

Specified by:

ready in interface AbstractHeader.Entry<T>

Returns:

true if ready

getType

public abstract int getType()

Returns the data type of this entry.

Specified by:

getType in interface AbstractHeader.Entry<T>

size

public abstract int size()

Returns the size this entry will need in the provided data buffer to write it's contents, corrected for any trailing zeros to fill to a boundary.

Specified by:

size in interface AbstractHeader.Entry<T>

read

public abstract void read(ByteBuffer buffer)

Reads this entries value from the provided buffer using the set count.

Specified by:

read in interface AbstractHeader.Entry<T>

write

public abstract void write(ByteBuffer data)

Writes this entries index to the index buffer and its values to the output channel provided.

Specified by:

write in interface AbstractHeader.Entry<T>

index

public void index(ByteBuffer index,
         int position)

Writes the index entry into the provided buffer at the current position.

Specified by:

index in interface AbstractHeader.Entry<T>

toString

public String toString()

Overrides:

toString in class Object