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

Class MeasurementCounter

java.lang.Object

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

org.apache.iotdb.db.metadata.mtree.traverser.counter.CounterTraverser

org.apache.iotdb.db.metadata.mtree.traverser.counter.MeasurementCounter

public class MeasurementCounter
extends CounterTraverser

Field Summary

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

count

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
MeasurementCounter(IMNode startNode, org.apache.iotdb.commons.path.PartialPath path, IMTreeStore store)
MeasurementCounter(IMNode startNode, org.apache.iotdb.commons.path.PartialPath path, IMTreeStore store, java.util.List<java.lang.String> timeseries, boolean hasTag)

Method Summary

Modifier and Type	Method	Description
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.counter.CounterTraverser

getCount

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

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

Methods inherited from class java.lang.Object

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

Constructor Detail

MeasurementCounter

public MeasurementCounter(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

MeasurementCounter

public MeasurementCounter(IMNode startNode,
                          org.apache.iotdb.commons.path.PartialPath path,
                          IMTreeStore store,
                          java.util.List<java.lang.String> timeseries,
                          boolean hasTag)
                   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)

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