PartitionSchema (PDI Engine 8.3.0.0-0.2.3 API)

java.lang.Object
- org.pentaho.di.core.changed.ChangedFlag
- - org.pentaho.di.partition.PartitionSchema

所有已实现的接口:

Cloneable, ChangedFlagInterface, org.pentaho.di.core.xml.XMLInterface, org.pentaho.di.repository.RepositoryElementInterface, org.pentaho.di.repository.RepositoryObjectInterface, ResourceHolderInterface, org.pentaho.di.shared.SharedObjectInterface
```
public class PartitionSchema
extends ChangedFlag
implements Cloneable, org.pentaho.di.shared.SharedObjectInterface, ResourceHolderInterface, org.pentaho.di.repository.RepositoryElementInterface, org.pentaho.di.core.xml.XMLInterface
```
A partition schema allow you to partition a step according into a number of partitions that run independendly. It allows us to "map"

作者:

Matt

字段概要

字段
限定符和类型字段和说明

static org.pentaho.di.repository.RepositoryObjectType REPOSITORY_ELEMENT_TYPE

static String XML_TAG

字段
限定符和类型	字段和说明
`static org.pentaho.di.repository.RepositoryObjectType`	`REPOSITORY_ELEMENT_TYPE`
`static String`	`XML_TAG`

构造器概要

构造器
构造器和说明

PartitionSchema()

PartitionSchema(Node partitionSchemaNode)

PartitionSchema(String name, List<String> partitionIDs)

构造器
构造器和说明
`PartitionSchema()`
`PartitionSchema(Node partitionSchemaNode)`
`PartitionSchema(String name, List<String> partitionIDs)`

方法概要

所有方法实例方法具体方法
限定符和类型	方法和说明
`Object`	`clone()`
`boolean`	`equals(Object obj)`
`void`	`expandPartitionsDynamically(int nrSlaves, org.pentaho.di.core.variables.VariableSpace space)`
`Date`	`getChangedDate()`
`String`	`getDescription()`
`String`	`getHolderType()` Gets the high-level type of resource holder.
`String`	`getName()`
`String`	`getNumberOfPartitionsPerSlave()`
`org.pentaho.di.repository.ObjectId`	`getObjectId()`
`org.pentaho.di.repository.ObjectRevision`	`getObjectRevision()`
`List<String>`	`getPartitionIDs()`
`org.pentaho.di.repository.RepositoryDirectoryInterface`	`getRepositoryDirectory()` Not supported for Partition schema, return the root.
`org.pentaho.di.repository.RepositoryObjectType`	`getRepositoryElementType()`
`String`	`getTypeId()`
`String`	`getXML()`
`int`	`hashCode()`
`boolean`	`isDynamicallyDefined()`
`boolean`	`isShared()`
`void`	`replaceMeta(PartitionSchema partitionSchema)`
`void`	`retainPartitionsForSlaveServer(int slaveCount, int slaveNumber)` Slaves don't need ALL the partitions, they just need a few.
`void`	`setChangedDate(Date changedDate)`
`void`	`setDescription(String description)`
`void`	`setDynamicallyDefined(boolean dynamicallyDefined)`
`void`	`setName(String name)`
`void`	`setNumberOfPartitionsPerSlave(String numberOfPartitionsPerSlave)`
`void`	`setObjectId(org.pentaho.di.repository.ObjectId id)`
`void`	`setObjectRevision(org.pentaho.di.repository.ObjectRevision objectRevision)`
`void`	`setPartitionIDs(List<String> partitionIDs)`
`void`	`setRepositoryDirectory(org.pentaho.di.repository.RepositoryDirectoryInterface repositoryDirectory)`
`void`	`setShared(boolean shared)`
`String`	`toString()`

从类继承的方法 org.pentaho.di.core.changed.ChangedFlag
addObserver, clearChanged, deleteObserver, hasChanged, notifyObservers, setChanged, setChanged

从类继承的方法 java.lang.Object
finalize, getClass, notify, notifyAll, wait, wait, wait

- 字段详细资料
  - XML_TAG
```
public static final String XML_TAG
```
    另请参阅:
    
    常量字段值
  - REPOSITORY_ELEMENT_TYPE
```
public static final org.pentaho.di.repository.RepositoryObjectType REPOSITORY_ELEMENT_TYPE
```
- 构造器详细资料
  - PartitionSchema
```
public PartitionSchema()
```
  - PartitionSchema
```
public PartitionSchema(String name,
                       List<String> partitionIDs)
```
    参数:
    
    name -
    
    partitionIDs -
  - PartitionSchema
```
public PartitionSchema(Node partitionSchemaNode)
```
- 方法详细资料
  - clone
```
public Object clone()
```
    覆盖:
    
    clone 在类中 Object
  - replaceMeta
```
public void replaceMeta(PartitionSchema partitionSchema)
```
  - toString
```
public String toString()
```
    覆盖:
    
    toString 在类中 Object
  - equals
```
public boolean equals(Object obj)
```
    覆盖:
    
    equals 在类中 Object
  - hashCode
```
public int hashCode()
```
    覆盖:
    
    hashCode 在类中 Object
  - getName
```
public String getName()
```
    指定者:
    
    getName 在接口中 org.pentaho.di.repository.RepositoryElementInterface
    
    指定者:
    
    getName 在接口中 org.pentaho.di.repository.RepositoryObjectInterface
    
    指定者:
    
    getName 在接口中 ResourceHolderInterface
    
    指定者:
    
    getName 在接口中 org.pentaho.di.shared.SharedObjectInterface
    
    返回:
    
    the name
  - setName
```
public void setName(String name)
```
    指定者:
    
    setName 在接口中 org.pentaho.di.repository.RepositoryElementInterface
    
    参数:
    
    name - the name to set
  - getPartitionIDs
```
public List<String> getPartitionIDs()
```
    返回:
    
    the partitionIDs
  - setPartitionIDs
```
public void setPartitionIDs(List<String> partitionIDs)
```
    参数:
    
    partitionIDs - the partitionIDs to set
  - getXML
```
public String getXML()
```
    指定者:
    
    getXML 在接口中 org.pentaho.di.core.xml.XMLInterface
    
    指定者:
    
    getXML 在接口中 org.pentaho.di.shared.SharedObjectInterface
  - isShared
```
public boolean isShared()
```
    指定者:
    
    isShared 在接口中 org.pentaho.di.shared.SharedObjectInterface
    
    返回:
    
    the shared
  - setShared
```
public void setShared(boolean shared)
```
    指定者:
    
    setShared 在接口中 org.pentaho.di.shared.SharedObjectInterface
    
    参数:
    
    shared - the shared to set
  - getObjectId
```
public org.pentaho.di.repository.ObjectId getObjectId()
```
    指定者:
    
    getObjectId 在接口中 org.pentaho.di.repository.RepositoryElementInterface
    
    指定者:
    
    getObjectId 在接口中 org.pentaho.di.repository.RepositoryObjectInterface
    
    指定者:
    
    getObjectId 在接口中 ResourceHolderInterface
    
    返回:
    
    the id
  - getDescription
```
public String getDescription()
```
    指定者:
    
    getDescription 在接口中 org.pentaho.di.repository.RepositoryElementInterface
    
    指定者:
    
    getDescription 在接口中 ResourceHolderInterface
    
    返回:
    
    The description of the holder of the resource
  - getHolderType
```
public String getHolderType()
```
    从接口复制的说明: ResourceHolderInterface
    
    Gets the high-level type of resource holder.
    
    指定者:
    
    getHolderType 在接口中 ResourceHolderInterface
    
    返回:
    
    JOBENTRY, STEP, etc.
  - getTypeId
```
public String getTypeId()
```
    指定者:
    
    getTypeId 在接口中 ResourceHolderInterface
    
    返回:
    
    The Type ID of the resource holder. The Type ID is the system-defined type identifier (like TRANS or SORT).
  - isDynamicallyDefined
```
public boolean isDynamicallyDefined()
```
    返回:
    
    the dynamicallyDefined
  - setDynamicallyDefined
```
public void setDynamicallyDefined(boolean dynamicallyDefined)
```
    参数:
    
    dynamicallyDefined - the dynamicallyDefined to set
  - getNumberOfPartitionsPerSlave
```
public String getNumberOfPartitionsPerSlave()
```
    返回:
    
    the numberOfStepCopiesPerSlave
  - setNumberOfPartitionsPerSlave
```
public void setNumberOfPartitionsPerSlave(String numberOfPartitionsPerSlave)
```
    参数:
    
    numberOfPartitionsPerSlave - the number of partitions per slave to set...
  - expandPartitionsDynamically
```
public void expandPartitionsDynamically(int nrSlaves,
                                        org.pentaho.di.core.variables.VariableSpace space)
```
  - retainPartitionsForSlaveServer
```
public void retainPartitionsForSlaveServer(int slaveCount,
                                           int slaveNumber)
```
    Slaves don't need ALL the partitions, they just need a few.
    So we should only retain those partitions that are of interest to the slave server.
    Divide the number of partitions (6) through the number of slaves (2)
    That gives you 0, 1, 2, 3, 4, 5
    Slave 0 : 0, 2, 4
    Slave 1 : 1, 3, 5
    --> slaveNumber == partitionNr % slaveCount
    
    参数:
    
    slaveCount -
    
    slaveNumber -
  - getRepositoryDirectory
```
public org.pentaho.di.repository.RepositoryDirectoryInterface getRepositoryDirectory()
```
    Not supported for Partition schema, return the root.
    
    指定者:
    
    getRepositoryDirectory 在接口中 org.pentaho.di.repository.RepositoryElementInterface
  - setRepositoryDirectory
```
public void setRepositoryDirectory(org.pentaho.di.repository.RepositoryDirectoryInterface repositoryDirectory)
```
    指定者:
    
    setRepositoryDirectory 在接口中 org.pentaho.di.repository.RepositoryElementInterface
  - getRepositoryElementType
```
public org.pentaho.di.repository.RepositoryObjectType getRepositoryElementType()
```
    指定者:
    
    getRepositoryElementType 在接口中 org.pentaho.di.repository.RepositoryElementInterface
  - setObjectId
```
public void setObjectId(org.pentaho.di.repository.ObjectId id)
```
    指定者:
    
    setObjectId 在接口中 org.pentaho.di.repository.RepositoryElementInterface
  - getObjectRevision
```
public org.pentaho.di.repository.ObjectRevision getObjectRevision()
```
    指定者:
    
    getObjectRevision 在接口中 org.pentaho.di.repository.RepositoryElementInterface
  - setObjectRevision
```
public void setObjectRevision(org.pentaho.di.repository.ObjectRevision objectRevision)
```
    指定者:
    
    setObjectRevision 在接口中 org.pentaho.di.repository.RepositoryElementInterface
  - setDescription
```
public void setDescription(String description)
```
    指定者:
    
    setDescription 在接口中 org.pentaho.di.repository.RepositoryElementInterface
  - getChangedDate
```
public Date getChangedDate()
```
    指定者:
    
    getChangedDate 在接口中 org.pentaho.di.shared.SharedObjectInterface
    
    返回:
    
    the changedDate
  - setChangedDate
```
public void setChangedDate(Date changedDate)
```
    参数:
    
    changedDate - the changedDate to set

类 PartitionSchema

字段概要

构造器概要

方法概要

从类继承的方法 org.pentaho.di.core.changed.ChangedFlag

从类继承的方法 java.lang.Object

字段详细资料

XML_TAG

REPOSITORY_ELEMENT_TYPE

构造器详细资料

PartitionSchema

PartitionSchema

PartitionSchema

方法详细资料

clone

replaceMeta

toString

equals

hashCode

getName

setName

getPartitionIDs

setPartitionIDs

getXML

isShared

setShared

getObjectId

getDescription

getHolderType

getTypeId

isDynamicallyDefined

setDynamicallyDefined

getNumberOfPartitionsPerSlave

setNumberOfPartitionsPerSlave

expandPartitionsDynamically

retainPartitionsForSlaveServer

getRepositoryDirectory

setRepositoryDirectory

getRepositoryElementType

setObjectId

getObjectRevision

setObjectRevision

setDescription

getChangedDate

setChangedDate