Package com.im.df.api.ddl

Class DFDataTree.Path

java.lang.Object

com.im.df.api.ddl.DFDataTree.Path

Enclosing interface:

DFDataTree

public static final class DFDataTree.Path
extends java.lang.Object

Defines a path in DFDataTree. The path contains a sequence of DFDataTree.Edges, a DFDataTree.Vertex which is the furthermost known Vertex from the root Vertex and the row ID in that Vertex.

Since:

15.7.27

Method Summary

Modifier and Type	Method	Description
static DFDataTree.Path	create(DFDataTree dataTree, DFDataTree.Vertex vertex)	Creates a new data tree path without edges.
static DFDataTree.Path	create(DFDataTree dataTree, java.util.List<DFDataTree.Edge> edges)	Creates a new data tree path containing a sequence of DFEntitys which should be updated.
boolean	equals(java.lang.Object obj)
com.google.common.collect.ImmutableList<DFDataTree.Edge>	getEdges()	Returns the edges in the data tree path.
DFDataTree.Vertex	getFirstVertex()
DFDataTree.Vertex	getLastVertex()
DFDataTree.Vertex	getVertex()	Returns the last vertex on the path.
int	hashCode()

Methods inherited from class java.lang.Object

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

Method Detail

create

public static DFDataTree.Path create(DFDataTree dataTree,
                                     DFDataTree.Vertex vertex)

Creates a new data tree path without edges. This will be translated to basic update in one DFEntity.

Parameters:

dataTree - The data tree

vertex - The vertex to update.

Returns:

New data tree path.

create

public static DFDataTree.Path create(DFDataTree dataTree,
                                     java.util.List<DFDataTree.Edge> edges)

Creates a new data tree path containing a sequence of DFEntitys which should be updated. This will be translated to sequence of inserts and updates in the entities.

Parameters:

dataTree - The data tree

edges - The edges on the path.

Returns:

New data tree path.

getVertex

public DFDataTree.Vertex getVertex()

Returns the last vertex on the path.

Returns:

Last vertex on the path.

getFirstVertex

public DFDataTree.Vertex getFirstVertex()

getLastVertex

public DFDataTree.Vertex getLastVertex()

getEdges

public com.google.common.collect.ImmutableList<DFDataTree.Edge> getEdges()

Returns the edges in the data tree path.

Returns:

The edges.

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object