Package org.qubership.atp.dataset.model.utils

Class DslAttrHandler

java.lang.Object

org.qubership.atp.dataset.model.utils.DslAttrHandler

All Implemented Interfaces:

TraverseAndLeafsHandler<DataSetList,Attribute,List<String>>, TraverseHandler<DataSetList,Attribute>

public class DslAttrHandler
extends Object
implements TraverseAndLeafsHandler<DataSetList,Attribute,List<String>>

Constructor Summary

Constructors

Constructor	Description
DslAttrHandler()

Method Summary

Modifier and Type	Method	Description
TraverseAndLeafsHandler<?,DataSetList,List<String>>	backToPreviousParent()	Invoked when iteration goes upper to parents in a tree hierarchy.
List<String>	constructLeaf(DataSetList leaf)	May return null if leaf should be filtered.
TraverseAndLeafsHandler<Attribute,?,List<String>>	forwardToNewParent(DataSetList parent)	Invoked when iteration goes deeper to children which becomes new parent in a tree hierarchy.
Iterator<? extends Attribute>	getChildren(DataSetList item)	Explains how to get children from parent.

Methods inherited from class java.lang.Object

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

Constructor Details

DslAttrHandler

public DslAttrHandler()

Method Details

backToPreviousParent

@Nonnull
public TraverseAndLeafsHandler<?,DataSetList,List<String>> backToPreviousParent()

Description copied from interface: TraverseHandler

Invoked when iteration goes upper to parents in a tree hierarchy.

Specified by:

backToPreviousParent in interface TraverseAndLeafsHandler<DataSetList,Attribute,List<String>>

Specified by:

backToPreviousParent in interface TraverseHandler<DataSetList,Attribute>

Returns:

handler of previous depth.

forwardToNewParent

@Nonnull
public TraverseAndLeafsHandler<Attribute,?,List<String>> forwardToNewParent(@Nonnull
 DataSetList parent)

Description copied from interface: TraverseHandler

Invoked when iteration goes deeper to children which becomes new parent in a tree hierarchy.

Specified by:

forwardToNewParent in interface TraverseAndLeafsHandler<DataSetList,Attribute,List<String>>

Specified by:

forwardToNewParent in interface TraverseHandler<DataSetList,Attribute>

Returns:

handler of deeper depth level.

getChildren

public Iterator<? extends Attribute> getChildren(@Nonnull
 DataSetList item)

Description copied from interface: TraverseHandler

Explains how to get children from parent. May return null. Invoked when iteration goes deeper.

Specified by:

getChildren in interface TraverseHandler<DataSetList,Attribute>

Parameters:

item - go get children from

Returns:

children

constructLeaf

@Nullable
public List<String> constructLeaf(@Nonnull
 DataSetList leaf)

Description copied from interface: TraverseAndLeafsHandler

May return null if leaf should be filtered.

Specified by:

constructLeaf in interface TraverseAndLeafsHandler<DataSetList,Attribute,List<String>>

Parameters:

leaf - leaf.

Returns:

leaf object.