FileCsvGraphDataSource

Loads a graph stored in CSV format from the local file system. The CSV files must be stored following this schema:

# Nodes

all files describing nodes are stored in a sub folder called "nodes"
create one file for each possible label combination that exists in the data. This means that a node can only be present in one file. Example: All nodes with labels :Person:Employee are in a single file and all nodes that have label :Person are stored in another file. A node that appears in :Person:Employee CANNOT appear again in the file for :Person.
for every node csv file create a schema file called FILE_NAME.csv.SCHEMA
for information about the structure of the node schema file see org.opencypher.spark.impl.io.hdfs.CsvNodeSchema

# Relationships

all files describing relationships are stored in a sub folder called "relationships"
create one csv file per relationship type
for every relationship csv file create a schema file called FILE_NAME.csv.SCHEMA
for information about the structure of the relationship schema file see org.opencypher.spark.impl.io.hdfs.CsvRelSchema

rootPath: path to the folder containing the nodes/relationships folders
session: CAPS Session

Linear Supertypes

Serializable, Serializable, Product, Equals, CAPSPropertyGraphDataSource, PropertyGraphDataSource, AnyRef, Any

Instance Constructors

new FileCsvGraphDataSource(rootPath: String)(implicit session: CAPSSession)

rootPath
path to the folder containing the nodes/relationships folders
session
CAPS Session

Value Members

final def !=(arg0: Any): Boolean

Definition Classes
AnyRef → Any
final def ##(): Int

Definition Classes
AnyRef → Any
final def ==(arg0: Any): Boolean

Definition Classes
AnyRef → Any
final def asInstanceOf[T0]: T0

Definition Classes
Any
def clone(): AnyRef

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( ... )
def delete(name: GraphName): Unit

Definition Classes
FileCsvGraphDataSource → PropertyGraphDataSource
final def eq(arg0: AnyRef): Boolean

Definition Classes
AnyRef
def finalize(): Unit

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( classOf[java.lang.Throwable] )
final def getClass(): Class[_]

Definition Classes
AnyRef → Any
def graph(name: GraphName): PropertyGraph

Definition Classes
FileCsvGraphDataSource → PropertyGraphDataSource
def graphNames: Set[GraphName]

Definition Classes
FileCsvGraphDataSource → PropertyGraphDataSource
def hasGraph(name: GraphName): Boolean

Definition Classes
FileCsvGraphDataSource → PropertyGraphDataSource
final def isInstanceOf[T0]: Boolean

Definition Classes
Any
final def ne(arg0: AnyRef): Boolean

Definition Classes
AnyRef
final def notify(): Unit

Definition Classes
AnyRef
final def notifyAll(): Unit

Definition Classes
AnyRef
val rootPath: String

path to the folder containing the nodes/relationships folders
def schema(name: GraphName): Option[Schema]

Definition Classes
FileCsvGraphDataSource → PropertyGraphDataSource
implicit val session: CAPSSession

CAPS Session
def store(name: GraphName, graph: PropertyGraph): Unit

Definition Classes
FileCsvGraphDataSource → PropertyGraphDataSource
final def synchronized[T0](arg0: ⇒ T0): T0

Definition Classes
AnyRef
final def wait(): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )
final def wait(arg0: Long, arg1: Int): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )
final def wait(arg0: Long): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )

Related Doc: package file

case class FileCsvGraphDataSource(rootPath: String)(implicit session: CAPSSession) extends CAPSPropertyGraphDataSource with Product with Serializable

Instance Constructors

new FileCsvGraphDataSource(rootPath: String)(implicit session: CAPSSession)

Value Members

final def !=(arg0: Any): Boolean

final def ##(): Int

final def ==(arg0: Any): Boolean

final def asInstanceOf[T0]: T0

def clone(): AnyRef

def delete(name: GraphName): Unit

final def eq(arg0: AnyRef): Boolean

def finalize(): Unit

final def getClass(): Class[_]

def graph(name: GraphName): PropertyGraph

def graphNames: Set[GraphName]

def hasGraph(name: GraphName): Boolean

final def isInstanceOf[T0]: Boolean

final def ne(arg0: AnyRef): Boolean

final def notify(): Unit

final def notifyAll(): Unit

val rootPath: String

def schema(name: GraphName): Option[Schema]

implicit val session: CAPSSession

def store(name: GraphName, graph: PropertyGraph): Unit

final def synchronized[T0](arg0: ⇒ T0): T0

final def wait(): Unit

final def wait(arg0: Long, arg1: Int): Unit

final def wait(arg0: Long): Unit

Inherited from Serializable

Inherited from Serializable

Inherited from Product

Inherited from Equals

Inherited from CAPSPropertyGraphDataSource

Inherited from PropertyGraphDataSource

Inherited from AnyRef

Inherited from Any

Ungrouped