org.apache.beam.sdk.transforms.display

Class DisplayData.Path

java.lang.Object

org.apache.beam.sdk.transforms.display.DisplayData.Path

All Implemented Interfaces:

java.io.Serializable

Enclosing class:

DisplayData

public static class DisplayData.Path
extends java.lang.Object
implements java.io.Serializable

Structured path of registered display data within a component hierarchy.

Display data items registered directly by a component will have the root path. If the component includes a sub-component, its display data will be registered at the path specified. Each sub-component path is created by appending a child element to the path of its parent component, forming a hierarchy.

See Also:

Serialized Form

Method Summary

Modifier and Type	Method and Description
static DisplayData.Path	absolute(java.lang.String firstPath, java.lang.String... paths) Construct a path from an absolute component path hierarchy.
boolean	equals(java.lang.Object obj)
DisplayData.Path	extend(java.lang.String path) Extend the path by appending a sub-component path.
java.util.List<java.lang.String>	getComponents() Hierarchy list of component paths making up the full path, starting with the top-level child component path.
int	hashCode()
static DisplayData.Path	root() Path for display data registered by a top-level component.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Method Detail

root

public static DisplayData.Path root()

Path for display data registered by a top-level component.

absolute

public static DisplayData.Path absolute(java.lang.String firstPath,
                                        java.lang.String... paths)

Construct a path from an absolute component path hierarchy.

For the root path, use root().

Parameters:

firstPath - Path of the first sub-component.

paths - Additional path components.

getComponents

public java.util.List<java.lang.String> getComponents()

Hierarchy list of component paths making up the full path, starting with the top-level child component path. For the root path, returns the empty list.

extend

public DisplayData.Path extend(java.lang.String path)

Extend the path by appending a sub-component path. The new path element is added to the end of the path hierarchy.

Returns a new DisplayData.Path instance; the originating DisplayData.Path is not modified.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object