Class TagContext

java.lang.Object

io.opencensus.tags.TagContext

Direct Known Subclasses:

ContextUtils.EmptyTagContext, NoopTags.NoopTagContext, TagMapImpl

@Immutable
public abstract class TagContext
extends Object

A map from TagKey to TagValue that can be used to label anything that is associated with a specific operation.

For example, TagContexts can be used to label stats, log messages, or debugging information.

Since:

0.8

Constructor Summary

Constructors

Constructor	Description
TagContext()

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object other)	Returns true iff the other object is an instance of TagContext and contains the same key-value pairs.
protected abstract Iterator<Tag>	getIterator()	Returns an iterator over the tags in this TagContext.
final int	hashCode()
String	toString()

Methods inherited from class Object

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

Constructor Details

TagContext

public TagContext()

Method Details

getIterator

protected abstract Iterator<Tag> getIterator()

Returns an iterator over the tags in this TagContext.

Returns:

an iterator over the tags in this TagContext.

Since:

0.8

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(@Nullable
 Object other)

Returns true iff the other object is an instance of TagContext and contains the same key-value pairs. Implementations are free to override this method to provide better performance.

Overrides:

equals in class Object

hashCode

public final int hashCode()

Overrides:

hashCode in class Object