com.tinkerpop.gremlin.process.graph.step.map.match

Interface Enumerator<T>

All Known Implementing Classes:

CrossJoinEnumerator, InnerJoinEnumerator, IteratorEnumerator, SerialEnumerator, SimpleEnumerator

public interface Enumerator<T>

An array of key/value maps accessible by index. The total size of the enumerator may be unknown when it is created; it grows when successive solutions are requested, computing as many as necessary.

Author:

Joshua Shinavier (http://fortytwo.net)

Method Summary

Modifier and Type	Method and Description
int	size()
boolean	visitSolution(int index, java.util.function.BiConsumer<java.lang.String,T> visitor) Provides access to a solution, allowing it to be printed, put into a map, etc.

Method Detail

size

int size()

Returns:

the number of solutions so far known; the enumerator has at least this many. This should be a relatively cheap operation.

visitSolution

boolean visitSolution(int index,
                      java.util.function.BiConsumer<java.lang.String,T> visitor)

Provides access to a solution, allowing it to be printed, put into a map, etc.

Parameters:

index - the index of the solution

visitor - a consumer for each key/value pair in the solution

Returns:

whether a solution exists at the given index and was visited