Package org.apache.iotdb.db.metadata.mtree.traverser.collector

Class EntityCollector<T>

java.lang.Object

org.apache.iotdb.db.metadata.mtree.traverser.Traverser

org.apache.iotdb.db.metadata.mtree.traverser.collector.CollectorTraverser<T>

org.apache.iotdb.db.metadata.mtree.traverser.collector.EntityCollector<T>

public abstract class EntityCollector<T>
extends CollectorTraverser<T>

Field Summary

Fields inherited from class org.apache.iotdb.db.metadata.mtree.traverser.collector.CollectorTraverser

count, curOffset, hasLimit, limit, offset, resultSet

Fields inherited from class org.apache.iotdb.db.metadata.mtree.traverser.Traverser

isInTemplate, isPrefixMatch, isPrefixStart, nodes, shouldTraverseTemplate, startIndex, startLevel, startNode, store, templateMap, traverseContext

Constructor Summary

Constructors

Constructor	Description
EntityCollector(IMNode startNode, org.apache.iotdb.commons.path.PartialPath path, IMTreeStore store)
EntityCollector(IMNode startNode, org.apache.iotdb.commons.path.PartialPath path, IMTreeStore store, int limit, int offset)

Method Summary

Modifier and Type	Method	Description
protected abstract void	collectEntity(IEntityMNode node)
protected boolean	processFullMatchedMNode(IMNode node, int idx, int level)	full match: root.sg.d full match root.sg.**(pattern)
protected boolean	processInternalMatchedMNode(IMNode node, int idx, int level)	internal match: root.sg internal match root.sg.**(pattern)

Methods inherited from class org.apache.iotdb.db.metadata.mtree.traverser.collector.CollectorTraverser

getCurOffset, getResult, setLimit, setOffset, setResultSet, traverse

Methods inherited from class org.apache.iotdb.db.metadata.mtree.traverser.Traverser

getCurrentPartialPath, getCurrentPathNodes, getStorageGroupNodeInTraversePath, getUpperTemplate, processMultiLevelWildcard, processNameMatch, processOneLevelWildcard, setPrefixMatch, setTemplateMap, traverse

Methods inherited from class java.lang.Object

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

Constructor Detail

EntityCollector

public EntityCollector(IMNode startNode,
                       org.apache.iotdb.commons.path.PartialPath path,
                       IMTreeStore store)
                throws org.apache.iotdb.commons.exception.MetadataException

Throws:

org.apache.iotdb.commons.exception.MetadataException

EntityCollector

public EntityCollector(IMNode startNode,
                       org.apache.iotdb.commons.path.PartialPath path,
                       IMTreeStore store,
                       int limit,
                       int offset)
                throws org.apache.iotdb.commons.exception.MetadataException

Throws:

org.apache.iotdb.commons.exception.MetadataException

Method Detail

processInternalMatchedMNode

protected boolean processInternalMatchedMNode(IMNode node,
                                              int idx,
                                              int level)

Description copied from class: Traverser

internal match: root.sg internal match root.sg.**(pattern)

Specified by:

processInternalMatchedMNode in class Traverser

Returns:

whether this branch of recursive traversal should stop; if true, stop

processFullMatchedMNode

protected boolean processFullMatchedMNode(IMNode node,
                                          int idx,
                                          int level)
                                   throws org.apache.iotdb.commons.exception.MetadataException

Description copied from class: Traverser

full match: root.sg.d full match root.sg.**(pattern)

Specified by:

processFullMatchedMNode in class Traverser

Returns:

whether this branch of recursive traversal should stop; if true, stop

Throws:

org.apache.iotdb.commons.exception.MetadataException

collectEntity

protected abstract void collectEntity(IEntityMNode node)
                               throws org.apache.iotdb.commons.exception.MetadataException

Throws:

org.apache.iotdb.commons.exception.MetadataException