com.orientechnologies.orient.core.db.tool.importer

Class OLinksRewriter

java.lang.Object

com.orientechnologies.orient.core.db.tool.importer.OLinksRewriter

All Implemented Interfaces:

ODocumentFieldVisitor

public final class OLinksRewriter
extends Object
implements ODocumentFieldVisitor

Created by tglman on 28/07/17.

Constructor Summary

Constructors

Constructor and Description
OLinksRewriter(OConverterData converterData)

Method Summary

Modifier and Type	Method and Description
boolean	goDeeper(OType type, OType linkedType, Object value) If currently processed value is collection or map of embedded documents or embedded document itself then current method is called if it returns false then this collection will not be visited.
boolean	goFurther(OType type, OType linkedType, Object value, Object newValue) Indicates whether we continue to visit document fields after current one or should stop fields processing.
boolean	updateMode()
Object	visitField(OType type, OType linkedType, Object value) Visits currently processed field.

Methods inherited from class java.lang.Object

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

Constructor Detail

OLinksRewriter

public OLinksRewriter(OConverterData converterData)

Method Detail

visitField

public Object visitField(OType type,
                         OType linkedType,
                         Object value)

Description copied from interface: ODocumentFieldVisitor

Visits currently processed field.

Specified by:

visitField in interface ODocumentFieldVisitor

Parameters:

type - Filed type. May be null if absent in DB schema.

linkedType - Linked type in case collection is processed. May be null if absent in DB schema.

value - Field value.

Returns:

New value of this field. If the same value is returned document content will not be changed.

goFurther

public boolean goFurther(OType type,
                         OType linkedType,
                         Object value,
                         Object newValue)

Description copied from interface: ODocumentFieldVisitor

Indicates whether we continue to visit document fields after current one or should stop fields processing.

Specified by:

goFurther in interface ODocumentFieldVisitor

Parameters:

type - Filed type. May be null if absent in DB schema.

linkedType - Linked type in case collection is processed. May be null if absent in DB schema.

value - Field value.

newValue - New value returned by ODocumentFieldVisitor.visitField(OType, OType, Object) method.

Returns:

If false document processing will be stopped.

goDeeper

public boolean goDeeper(OType type,
                        OType linkedType,
                        Object value)

Description copied from interface: ODocumentFieldVisitor

If currently processed value is collection or map of embedded documents or embedded document itself then current method is called if it returns false then this collection will not be visited.

Specified by:

goDeeper in interface ODocumentFieldVisitor

Parameters:

type - Filed type. May be null if absent in DB schema.

linkedType - Linked type in case collection is processed. May be null if absent in DB schema.

value - Field value.

Returns:

If false currently processed collection of embedded documents will not be visited.

updateMode

public boolean updateMode()

Specified by:

updateMode in interface ODocumentFieldVisitor

Returns:

If false value returned by method ODocumentFieldVisitor.visitField(OType, OType, Object) will not be taken in account and field value will not be updated.