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Java Source Code / Java Documentation » Scripting » jython » org.python.core 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   org.python.core.MergeState

MergeState
class MergeState (Code)
The MergeState class is a java implementation of the sort created Tim Peters and added to CPython2.3. The algorithm is described in details in the file python/dist/src/Objects/listsort.txt in the CPython development CVS.


Field Summary
final static  intMAX_MERGE_PENDING
     The maximum number of entries in a MergeState's pending-runs stack. This is enough to sort arrays of size up to about 32 * phi ** MAX_MERGE_PENDING where phi ~= 1.618.
final static  intMERGESTATE_TEMP_SIZE
    
final static  intMIN_GALLOP
     If a run wins MIN_GALLOP times in a row, we switch to galloping mode, and stay there until both runs win less often than MIN_GALLOP consecutive times.

Constructor Summary
 MergeState(PyObject[] data, int size, PyObject compare)
    

Method Summary
 voidassert_(boolean expr)
    
 voidbinarysort(int lo, int hi, int start)
    
 intcount_run(int lo, int hi, boolean[] descending)
    
public  voidgetmem(int need)
    
 voidmerge_at(int i)
    
 voidmerge_collapse()
    
 intmerge_compute_minrun(int localN)
    
 voidmerge_force_collapse()
    
 voidmerge_hi(int pa, int na, int pb, int nb)
    
 voidmerge_lo(int pa, int na, int pb, int nb)
    
 voidreverse_slice(int lo, int hi)
    
public  voidsort()
    

Field Detail
MAX_MERGE_PENDING
final static int MAX_MERGE_PENDING(Code)
The maximum number of entries in a MergeState's pending-runs stack. This is enough to sort arrays of size up to about 32 * phi ** MAX_MERGE_PENDING where phi ~= 1.618. 85 is ridiculously large enough, good for an array with 2**64 elements.



MERGESTATE_TEMP_SIZE
final static int MERGESTATE_TEMP_SIZE(Code)
Initial temp array size



MIN_GALLOP
final static int MIN_GALLOP(Code)
If a run wins MIN_GALLOP times in a row, we switch to galloping mode, and stay there until both runs win less often than MIN_GALLOP consecutive times. See listsort.txt for more info.




Constructor Detail
MergeState
MergeState(PyObject[] data, int size, PyObject compare)(Code)




Method Detail
assert_
void assert_(boolean expr)(Code)



binarysort
void binarysort(int lo, int hi, int start)(Code)



count_run
int count_run(int lo, int hi, boolean[] descending)(Code)



getmem
public void getmem(int need)(Code)



merge_at
void merge_at(int i)(Code)



merge_collapse
void merge_collapse()(Code)



merge_compute_minrun
int merge_compute_minrun(int localN)(Code)



merge_force_collapse
void merge_force_collapse()(Code)



merge_hi
void merge_hi(int pa, int na, int pb, int nb)(Code)



merge_lo
void merge_lo(int pa, int na, int pb, int nb)(Code)



reverse_slice
void reverse_slice(int lo, int hi)(Code)



sort
public void sort()(Code)



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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