org.verdictdb.core.querying

Class ExecutableNodeBase

java.lang.Object

org.verdictdb.core.querying.ExecutableNodeBase

All Implemented Interfaces:

Serializable, ExecutableNode

Direct Known Subclasses:

ColumnMetadataRetrievalNode, DropTableExecutionNode, PartitionMetadataRetrievalNode, QueryNodeBase

public class ExecutableNodeBase
extends Object
implements ExecutableNode, Serializable

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
ExecutableNodeBase()

Method Summary

Modifier and Type	Method and Description
void	cancelSubscriptionsFromAllSubscribers()
void	cancelSubscriptionTo(ExecutableNodeBase node) Removes node from the subscription list (i.e., sources).
protected void	copyFields(ExecutableNodeBase from, ExecutableNodeBase to)
static ExecutableNodeBase	create()
SqlConvertible	createQuery(List<ExecutionInfoToken> tokens) Creates a query that should be run.
SubscriptionTicket	createSubscriptionTicket()
ExecutionInfoToken	createToken(DbmsQueryResult result)
ExecutableNodeBase	deepcopy()
boolean	equals(Object obj)
AggMeta	getAggMeta()
Integer	getChannelForSource(ExecutableNodeBase node)
int	getDependentNodeCount()
ExecutableNodeBase	getExecutableNodeBaseDependent(int idx)
List<ExecutableNodeBase>	getExecutableNodeBaseDependents()
List<ExecutableNodeBase>	getExecutableNodeBaseParents()
int	getGroupId()
Map<String,MethodInvocationInformation>	getMethodsToInvokeOnConnection() The methods are invoked on DbmsConnection and its results are set to the ExecutionInfoToken.
void	getNotified(ExecutableNode source, ExecutionInfoToken token)
List<ExecutionTokenQueue>	getSourceQueues() The tokens are retrieved from these queues.
List<ExecutableNodeBase>	getSources()
List<org.apache.commons.lang3.tuple.Pair<ExecutableNodeBase,Integer>>	getSourcesAndChannels()
List<ExecutableNode>	getSubscribers() The result of createToken() is broadcasted to these queues.
int	hashCode()
void	print()
void	registerSubscriber(SubscriptionTicket ticket)
void	setAggMeta(AggMeta aggMeta)
void	subscribeTo(ExecutableNodeBase node)
void	subscribeTo(ExecutableNodeBase node, int channel)
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

ExecutableNodeBase

public ExecutableNodeBase()

Method Detail

create

public static ExecutableNodeBase create()

getGroupId

public int getGroupId()

createSubscriptionTicket

public SubscriptionTicket createSubscriptionTicket()

registerSubscriber

public void registerSubscriber(SubscriptionTicket ticket)

subscribeTo

public void subscribeTo(ExecutableNodeBase node)

subscribeTo

public void subscribeTo(ExecutableNodeBase node,
                        int channel)

cancelSubscriptionTo

public void cancelSubscriptionTo(ExecutableNodeBase node)

Removes node from the subscription list (i.e., sources).

Parameters:

node -

cancelSubscriptionsFromAllSubscribers

public void cancelSubscriptionsFromAllSubscribers()

getNotified

public void getNotified(ExecutableNode source,
                        ExecutionInfoToken token)

Specified by:

getNotified in interface ExecutableNode

getSourceQueues

public List<ExecutionTokenQueue> getSourceQueues()

Description copied from interface: ExecutableNode

The tokens are retrieved from these queues.

Specified by:

getSourceQueues in interface ExecutableNode

Returns:

getSubscribers

public List<ExecutableNode> getSubscribers()

Description copied from interface: ExecutableNode

The result of createToken() is broadcasted to these queues.

Specified by:

getSubscribers in interface ExecutableNode

Returns:

createQuery

public SqlConvertible createQuery(List<ExecutionInfoToken> tokens)
                           throws VerdictDBException

Description copied from interface: ExecutableNode

Creates a query that should be run. Its result will be handed to createToken().

Specified by:

createQuery in interface ExecutableNode

Returns:

Throws:

VerdictDBException

createToken

public ExecutionInfoToken createToken(DbmsQueryResult result)

Specified by:

createToken in interface ExecutableNode

getDependentNodeCount

public int getDependentNodeCount()

Specified by:

getDependentNodeCount in interface ExecutableNode

getMethodsToInvokeOnConnection

public Map<String,MethodInvocationInformation> getMethodsToInvokeOnConnection()

Description copied from interface: ExecutableNode

The methods are invoked on DbmsConnection and its results are set to the ExecutionInfoToken.

Specified by:

getMethodsToInvokeOnConnection in interface ExecutableNode

Returns:

Pairs of (token key, method name)

getSources

public List<ExecutableNodeBase> getSources()

getChannelForSource

public Integer getChannelForSource(ExecutableNodeBase node)

getSourcesAndChannels

public List<org.apache.commons.lang3.tuple.Pair<ExecutableNodeBase,Integer>> getSourcesAndChannels()

getExecutableNodeBaseParents

public List<ExecutableNodeBase> getExecutableNodeBaseParents()

getExecutableNodeBaseDependents

public List<ExecutableNodeBase> getExecutableNodeBaseDependents()

getExecutableNodeBaseDependent

public ExecutableNodeBase getExecutableNodeBaseDependent(int idx)

deepcopy

public ExecutableNodeBase deepcopy()

copyFields

protected void copyFields(ExecutableNodeBase from,
                          ExecutableNodeBase to)

print

public void print()

getAggMeta

public AggMeta getAggMeta()

setAggMeta

public void setAggMeta(AggMeta aggMeta)

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

toString

public String toString()

Overrides:

toString in class Object