Package com.orientechnologies.orient.core.sql.executor

Class AbstractTraverseStep

java.lang.Object

com.orientechnologies.orient.core.sql.executor.AbstractExecutionStep

com.orientechnologies.orient.core.sql.executor.AbstractTraverseStep

All Implemented Interfaces:

OExecutionStepInternal

Direct Known Subclasses:

BreadthFirstTraverseStep, DepthFirstTraverseStep

public abstract class AbstractTraverseStep
extends AbstractExecutionStep

Created by luigidellaquila on 26/10/16.

Field Summary

Fields

Modifier and Type	Field	Description
protected final OInteger	maxDepth
protected final List<OTraverseProjectionItem>	projections
protected final OWhereClause	whileClause

Fields inherited from class com.orientechnologies.orient.core.sql.executor.AbstractExecutionStep

prev

Constructor Summary

Constructors

Constructor	Description
AbstractTraverseStep(List<OTraverseProjectionItem> projections, OWhereClause whileClause, OInteger maxDepth)

Method Summary

Modifier and Type	Method	Description
protected abstract void	fetchNextEntryPoints(OExecutionStream toFetch, OCommandContext ctx, List<OResult> entryPoints, Set<ORID> traversed)
protected abstract void	fetchNextResults(OCommandContext ctx, List<OResult> results, List<OResult> entryPoints, Set<ORID> traversed)
OExecutionStream	internalStart(OCommandContext ctx)
String	toString()

Methods inherited from class com.orientechnologies.orient.core.sql.executor.AbstractExecutionStep

getPrev, setPrevious, start

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.orientechnologies.orient.core.sql.executor.OExecutionStepInternal

canBeCached, copy, deserialize, getName, getSubExecutionPlans, getSubSteps, getTargetNode, getType, prettyPrint, serialize, serializeToResult, toResult, toResult

Field Details

whileClause

protected final OWhereClause whileClause

projections

protected final List<OTraverseProjectionItem> projections

maxDepth

protected final OInteger maxDepth

Constructor Details

AbstractTraverseStep

public AbstractTraverseStep(List<OTraverseProjectionItem> projections,
 OWhereClause whileClause,
 OInteger maxDepth)

Method Details

internalStart

public OExecutionStream internalStart(OCommandContext ctx)
                               throws OTimeoutException

Specified by:

internalStart in class AbstractExecutionStep

Throws:

OTimeoutException

fetchNextEntryPoints

protected abstract void fetchNextEntryPoints(OExecutionStream toFetch,
 OCommandContext ctx,
 List<OResult> entryPoints,
 Set<ORID> traversed)

fetchNextResults

protected abstract void fetchNextResults(OCommandContext ctx,
 List<OResult> results,
 List<OResult> entryPoints,
 Set<ORID> traversed)

toString

public String toString()

Overrides:

toString in class Object