oracle.pgx.api.graphbuilder

Class Changes<VID>

java.lang.Object

oracle.pgx.api.graphbuilder.Changes<VID>

public final class Changes<VID>
extends java.lang.Object

A class holding graph change information

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Changes.ChangesIntent

Constructor Summary

Constructors

Constructor and Description
Changes(IdType idType, Changes.ChangesIntent intent)

Method Summary

Modifier and Type	Method and Description
void	addEdge(long id, VID srcId, VID dstId) Adds the edge with the given id, source vertex and destination vertex
void	addVertex(VID id) Adds the vertex with the given id.
void	addVertexLabel(VID id, java.lang.String label) Adds a label to the given vertex
void	assertVertexExists(VID vertexId)
static <T extends oracle.pgx.api.graphbuilder.ElementChanges> java.util.Map<java.lang.String,PropertyType>	extractPropertyType(java.util.List<? extends oracle.pgx.common.util.ChangeTrackingMap.ChangeSetEntry<?,T>> changes) Extracts the property types from a list of changes as map propertyKey -> propertyType
static IdType	extractVertexIdType(java.util.List<? extends oracle.pgx.common.util.ChangeTrackingMap.ChangeSetEntry<?,VertexChanges>> vertexChanges, java.util.List<oracle.pgx.common.util.ChangeTrackingMap.ChangeSetEntry<java.lang.Long,EdgeChanges>> edgeChanges)
static void	fixEdgeChanges(java.util.List<oracle.pgx.common.util.ChangeTrackingMap.ChangeSetEntry<java.lang.Long,EdgeChanges>> changes, java.util.Map<java.lang.String,PropertyType> expectedPropTypes, IdType expectedVertexIdType) fixed edge changes from possible json encoding errors
static void	fixVertexChanges(java.util.List<? extends oracle.pgx.common.util.ChangeTrackingMap.ChangeSetEntry<?,VertexChanges>> changes, java.util.Map<java.lang.String,PropertyType> expectedPropTypes, IdType expectedVertexIdType) fixes vertex changes from possible json encoding errors
OnAddExistingElement	getAddExistingEdgePolicy()
OnAddExistingElement	getAddExistingVertexPolicy()
java.util.List<oracle.pgx.common.util.ChangeTrackingMap.ChangeSetEntry<java.lang.Long,EdgeChanges>>	getEdgeChanges() Returns the cached edge changes
ChangeType	getEdgeChangeType(long id)
java.util.Map<java.lang.String,PropertyType>	getEdgePropTypes()
IdType	getIdType()
int	getNumEdgeChanges() The number of cached edge changes
int	getNumVertexChanges() The number of cached vertex changes
java.util.List<oracle.pgx.common.util.ChangeTrackingMap.ChangeSetEntry<VID,VertexChanges>>	getVertexChanges() Returns the cached vertex changes
ChangeType	getVertexChangeType(VID id)
java.util.Map<java.lang.String,PropertyType>	getVertexPropTypes()
void	removeEdge(long edgeId)
void	removeVertex(VID vertexId)
void	removeVertexLabel(VID id, java.lang.String label)
void	resetEdge(long edgeId) Resets the changes for the given id
void	resetVertex(VID vertexId) Resets the changes for the given vertex If the vertex was added, all edges which used this vertex are reset as well
void	setAddExistingEdgePolicy(OnAddExistingElement addExistingEdgePolicy)
void	setAddExistingVertexPolicy(OnAddExistingElement addExistingVertexPolicy)
void	setEdgeLabel(long id, java.lang.String label) Sets the label of a given edge
void	setEdgeProperty(long id, java.lang.String key, java.lang.Object value) Sets the property of the given edge to the given value
void	setVertexProperty(VID id, java.lang.String key, java.lang.Object value) Sets the property of the given vertex to the given value
java.lang.String	toString()
void	updateEdge(long id)
void	updateVertex(VID id)

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

Changes

public Changes(IdType idType,
               Changes.ChangesIntent intent)

Method Detail

addEdge

public void addEdge(long id,
                    VID srcId,
                    VID dstId)

Adds the edge with the given id, source vertex and destination vertex

Parameters:

id - the id of the edge to add

srcId - the id of the source vertex

dstId - the id of the destination vertex

addVertex

public void addVertex(VID id)

Adds the vertex with the given id.

Parameters:

id - the id of the new vertex

addVertexLabel

public void addVertexLabel(VID id,
                           java.lang.String label)

Adds a label to the given vertex

Parameters:

id - the id of the vertex

label - the label to add

assertVertexExists

public final void assertVertexExists(VID vertexId)

extractPropertyType

public static <T extends oracle.pgx.api.graphbuilder.ElementChanges> java.util.Map<java.lang.String,PropertyType> extractPropertyType(java.util.List<? extends oracle.pgx.common.util.ChangeTrackingMap.ChangeSetEntry<?,T>> changes)

Extracts the property types from a list of changes as map propertyKey -> propertyType

Parameters:

changes - the list of changes to extract the types from

Returns:

a map from propertyKey to propertyType

extractVertexIdType

public static IdType extractVertexIdType(java.util.List<? extends oracle.pgx.common.util.ChangeTrackingMap.ChangeSetEntry<?,VertexChanges>> vertexChanges,
                                         java.util.List<oracle.pgx.common.util.ChangeTrackingMap.ChangeSetEntry<java.lang.Long,EdgeChanges>> edgeChanges)

fixEdgeChanges

public static void fixEdgeChanges(java.util.List<oracle.pgx.common.util.ChangeTrackingMap.ChangeSetEntry<java.lang.Long,EdgeChanges>> changes,
                                  java.util.Map<java.lang.String,PropertyType> expectedPropTypes,
                                  IdType expectedVertexIdType)
                           throws java.io.IOException

fixed edge changes from possible json encoding errors

Parameters:

changes - the changes to fix

expectedPropTypes - the expected property types

expectedVertexIdType - the expected vertex id type

Throws:

java.io.IOException

fixVertexChanges

public static void fixVertexChanges(java.util.List<? extends oracle.pgx.common.util.ChangeTrackingMap.ChangeSetEntry<?,VertexChanges>> changes,
                                    java.util.Map<java.lang.String,PropertyType> expectedPropTypes,
                                    IdType expectedVertexIdType)
                             throws java.io.IOException

fixes vertex changes from possible json encoding errors

Parameters:

changes - the changes to fix

expectedPropTypes - the expected property types

expectedVertexIdType - the expected vertex id type

Throws:

java.io.IOException

getAddExistingEdgePolicy

public OnAddExistingElement getAddExistingEdgePolicy()

getAddExistingVertexPolicy

public OnAddExistingElement getAddExistingVertexPolicy()

getEdgeChanges

public java.util.List<oracle.pgx.common.util.ChangeTrackingMap.ChangeSetEntry<java.lang.Long,EdgeChanges>> getEdgeChanges()

Returns the cached edge changes

Returns:

a collection of vertex changes

getEdgeChangeType

public ChangeType getEdgeChangeType(long id)

getEdgePropTypes

public java.util.Map<java.lang.String,PropertyType> getEdgePropTypes()

getIdType

public IdType getIdType()

getNumEdgeChanges

public int getNumEdgeChanges()

The number of cached edge changes

Returns:

the number of cached edge changes

getNumVertexChanges

public int getNumVertexChanges()

The number of cached vertex changes

Returns:

the number of cached vertex changes

getVertexChanges

public java.util.List<oracle.pgx.common.util.ChangeTrackingMap.ChangeSetEntry<VID,VertexChanges>> getVertexChanges()

Returns the cached vertex changes

Returns:

a collection of vertex changes

getVertexChangeType

public ChangeType getVertexChangeType(VID id)

getVertexPropTypes

public java.util.Map<java.lang.String,PropertyType> getVertexPropTypes()

removeEdge

public void removeEdge(long edgeId)

removeVertex

public void removeVertex(VID vertexId)

removeVertexLabel

public void removeVertexLabel(VID id,
                              java.lang.String label)

resetEdge

public void resetEdge(long edgeId)

Resets the changes for the given id

Parameters:

edgeId - the id of the edge to reset

resetVertex

public void resetVertex(VID vertexId)

Resets the changes for the given vertex

If the vertex was added, all edges which used this vertex are reset as well

Parameters:

vertexId - the id of the vertex to reset

setAddExistingEdgePolicy

public void setAddExistingEdgePolicy(OnAddExistingElement addExistingEdgePolicy)

setAddExistingVertexPolicy

public void setAddExistingVertexPolicy(OnAddExistingElement addExistingVertexPolicy)

setEdgeLabel

public void setEdgeLabel(long id,
                         java.lang.String label)

Sets the label of a given edge

Parameters:

id - the id of the edge

label - the new value of the label

setEdgeProperty

public void setEdgeProperty(long id,
                            java.lang.String key,
                            java.lang.Object value)

Sets the property of the given edge to the given value

Parameters:

id - the id of the edge

key - the property key

value - the new value

setVertexProperty

public void setVertexProperty(VID id,
                              java.lang.String key,
                              java.lang.Object value)

Sets the property of the given vertex to the given value

Parameters:

id - the id of the vertex

key - the property key

value - the new value

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

updateEdge

public void updateEdge(long id)

updateVertex

public void updateVertex(VID id)