Package org.apache.iotdb.db.metadata.mtree.store

Interface IMTreeStore

All Known Implementing Classes:

CachedMTreeStore, MemMTreeStore

public interface IMTreeStore

This interface defines the basic access methods of an MTreeStore.

MTreeStore could be implemented as memory-based or disk-based for different scenarios.

Method Summary

Modifier and Type	Method	Description
IMNode	addChild(IMNode parent, java.lang.String childName, IMNode child)
void	clear()
boolean	createSnapshot(java.io.File snapshotDir)
void	deleteChild(IMNode parent, java.lang.String childName)
IMNode	getChild(IMNode parent, java.lang.String name)
IMNodeIterator	getChildrenIterator(IMNode parent)
IMNode	getRoot()
boolean	hasChild(IMNode parent, java.lang.String name)
void	pin(IMNode node)
void	setAlias(IMeasurementMNode measurementMNode, java.lang.String alias)
IEntityMNode	setToEntity(IMNode node)
IMNode	setToInternal(IEntityMNode entityMNode)
void	unPin(IMNode node)
void	unPinPath(IMNode node)
void	updateMNode(IMNode node)

Method Detail

getRoot

IMNode getRoot()

hasChild

boolean hasChild(IMNode parent,
                 java.lang.String name)
          throws org.apache.iotdb.commons.exception.MetadataException

Throws:

org.apache.iotdb.commons.exception.MetadataException

getChild

IMNode getChild(IMNode parent,
                java.lang.String name)
         throws org.apache.iotdb.commons.exception.MetadataException

Throws:

org.apache.iotdb.commons.exception.MetadataException

getChildrenIterator

IMNodeIterator getChildrenIterator(IMNode parent)
                            throws org.apache.iotdb.commons.exception.MetadataException

Throws:

org.apache.iotdb.commons.exception.MetadataException

addChild

IMNode addChild(IMNode parent,
                java.lang.String childName,
                IMNode child)

deleteChild

void deleteChild(IMNode parent,
                 java.lang.String childName)
          throws org.apache.iotdb.commons.exception.MetadataException

Throws:

org.apache.iotdb.commons.exception.MetadataException

updateMNode

void updateMNode(IMNode node)
          throws org.apache.iotdb.commons.exception.MetadataException

Throws:

org.apache.iotdb.commons.exception.MetadataException

setToEntity

IEntityMNode setToEntity(IMNode node)
                  throws org.apache.iotdb.commons.exception.MetadataException

Throws:

org.apache.iotdb.commons.exception.MetadataException

setToInternal

IMNode setToInternal(IEntityMNode entityMNode)
              throws org.apache.iotdb.commons.exception.MetadataException

Throws:

org.apache.iotdb.commons.exception.MetadataException

setAlias

void setAlias(IMeasurementMNode measurementMNode,
              java.lang.String alias)
       throws org.apache.iotdb.commons.exception.MetadataException

Throws:

org.apache.iotdb.commons.exception.MetadataException

pin

void pin(IMNode node)
  throws org.apache.iotdb.commons.exception.MetadataException

Throws:

org.apache.iotdb.commons.exception.MetadataException

unPin

void unPin(IMNode node)

unPinPath

void unPinPath(IMNode node)

clear

void clear()

createSnapshot

boolean createSnapshot(java.io.File snapshotDir)