Package se.liu.ida.hefquin.engine.queryplan.executable.impl

Class GenericIntermediateResultBlockBuilderImpl

java.lang.Object

se.liu.ida.hefquin.engine.queryplan.executable.impl.GenericIntermediateResultBlockBuilderImpl

All Implemented Interfaces:

IntermediateResultBlockBuilder

public class GenericIntermediateResultBlockBuilderImpl
extends Object
implements IntermediateResultBlockBuilder

Field Summary

Fields

Modifier and Type	Field	Description
protected GenericIntermediateResultBlockImpl	block

Constructor Summary

Constructors

Constructor	Description
GenericIntermediateResultBlockBuilderImpl()

Method Summary

Modifier and Type	Method	Description
void	add(SolutionMapping element)	Adds the given result element to the currently-created block.
IntermediateResultBlock	finishCurrentBlock()	Finishes the creation of the currently-created block and returns this block.
int	sizeOfCurrentBlock()	Returns the current size of the currently-created block.
void	startNewBlock()	Starts creating a new IntermediateResultBlock.

Methods inherited from class java.lang.Object

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

Field Details

block

protected GenericIntermediateResultBlockImpl block

Constructor Details

GenericIntermediateResultBlockBuilderImpl

public GenericIntermediateResultBlockBuilderImpl()

Method Details

startNewBlock

public void startNewBlock()

Description copied from interface: IntermediateResultBlockBuilder

Starts creating a new IntermediateResultBlock. If creating the previous block has not been completed by calling IntermediateResultBlockBuilder.finishCurrentBlock(), then everything that was added into that uncompleted block will be discarded.

Specified by:

startNewBlock in interface IntermediateResultBlockBuilder

add

public void add(SolutionMapping element)

Description copied from interface: IntermediateResultBlockBuilder

Adds the given result element to the currently-created block. If no block was started so far or this is the first call of this method after IntermediateResultBlockBuilder.finishCurrentBlock() was called, then a new block will be started first (i.e., IntermediateResultBlockBuilder.startNewBlock() will be called internally).

Specified by:

add in interface IntermediateResultBlockBuilder

sizeOfCurrentBlock

public int sizeOfCurrentBlock()

Description copied from interface: IntermediateResultBlockBuilder

Returns the current size of the currently-created block. If no block was started so far or this is the first call of this method after IntermediateResultBlockBuilder.finishCurrentBlock() was called, then this method returns 0 (zero).

Specified by:

sizeOfCurrentBlock in interface IntermediateResultBlockBuilder

finishCurrentBlock

public IntermediateResultBlock finishCurrentBlock()

Description copied from interface: IntermediateResultBlockBuilder

Finishes the creation of the currently-created block and returns this block.

Specified by:

finishCurrentBlock in interface IntermediateResultBlockBuilder