Package com.im.df.api.dml

Class VertexStates

java.lang.Object

com.im.df.api.dml.VertexStates

public final class VertexStates
extends java.lang.Object

Common utilities related to DFResultSet.VertexStates.

Method Summary

Modifier and Type	Method	Description
static DFResultSet.VertexState	findVertexState(DFResultSet.VertexState vs, DFField field)	Finds VertexState corresponding to the given field.
static com.google.common.base.Optional<java.lang.Comparable<?>>	getIDForFirstSelectedRow(DFResultSet.VertexState vs, boolean useSubSelection)	Returns ID for the first select row in a given VertexState.

Methods inherited from class java.lang.Object

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

Method Detail

findVertexState

public static DFResultSet.VertexState findVertexState(DFResultSet.VertexState vs,
                                                      DFField field)

Finds VertexState corresponding to the given field. I.e. field.getEntity() and foundVertexState.getVertex().getEntity() represents the same entity.

Parameters:

vs - VertexState from the same data tree as the VertexState associated with the entity owning the given field.

field - the field of interest

Returns:

found VertexState or null

getIDForFirstSelectedRow

public static com.google.common.base.Optional<java.lang.Comparable<?>> getIDForFirstSelectedRow(DFResultSet.VertexState vs,
                                                                                                boolean useSubSelection)

Returns ID for the first select row in a given VertexState.

Parameters:

vs - the VertexState of interest

useSubSelection - whether first index of selection or sub-selection shall be used

Returns:

the ID or none if there are no rows in VertexState