Package org.infinispan.commands.read
Class GetCacheEntryCommand
- java.lang.Object
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- org.infinispan.commands.read.AbstractDataCommand
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- org.infinispan.commands.read.GetCacheEntryCommand
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- All Implemented Interfaces:
DataCommand
,FlagAffectedCommand
,ReplicableCommand
,SegmentSpecificCommand
,TopologyAffectedCommand
,VisitableCommand
public final class GetCacheEntryCommand extends AbstractDataCommand
Used to fetch a full CacheEntry rather than just the value. This functionality was originally incorporated into GetKeyValueCommand.- Since:
- 7.1
- Author:
- Sanne Grinovero <sanne@hibernate.org> (C) 2014 Red Hat Inc.
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Nested Class Summary
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Nested classes/interfaces inherited from interface org.infinispan.commands.VisitableCommand
VisitableCommand.LoadType
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Field Summary
Fields Modifier and Type Field Description static byte
COMMAND_ID
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Fields inherited from class org.infinispan.commands.read.AbstractDataCommand
key, segment
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Constructor Summary
Constructors Constructor Description GetCacheEntryCommand()
GetCacheEntryCommand(Object key, int segment, long flagsBitSet, org.infinispan.container.impl.InternalEntryFactory entryFactory)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description Object
acceptVisitor(InvocationContext ctx, Visitor visitor)
Accept a visitor, and return the result of accepting this visitor.byte
getCommandId()
Used by marshallers to convert this command into an id for streaming.VisitableCommand.LoadType
loadType()
Object
perform(InvocationContext ctx)
Performs the primary function of the command.void
readFrom(ObjectInput input)
Reads this instance from the stream written byReplicableCommand.writeTo(ObjectOutput)
.String
toString()
void
writeTo(ObjectOutput output)
Writes this instance to theObjectOutput
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Methods inherited from class org.infinispan.commands.read.AbstractDataCommand
canBlock, equals, getFlagsBitSet, getKey, getSegment, getTopologyId, hashCode, isReturnValueExpected, printFlags, setFlagsBitSet, setKey, setTopologyId
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Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
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Methods inherited from interface org.infinispan.commands.FlagAffectedCommand
addFlag, addFlags, addFlags, getFlags, hasAllFlags, hasAnyFlag, hasFlag, setFlags
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Methods inherited from interface org.infinispan.commands.ReplicableCommand
invoke, invokeAsync, isSuccessful, setOrigin
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Methods inherited from interface org.infinispan.commands.VisitableCommand
ignoreCommandOnStatus, shouldInvoke
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Field Detail
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COMMAND_ID
public static final byte COMMAND_ID
- See Also:
- Constant Field Values
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Constructor Detail
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GetCacheEntryCommand
public GetCacheEntryCommand(Object key, int segment, long flagsBitSet, org.infinispan.container.impl.InternalEntryFactory entryFactory)
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GetCacheEntryCommand
public GetCacheEntryCommand()
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Method Detail
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acceptVisitor
public Object acceptVisitor(InvocationContext ctx, Visitor visitor) throws Throwable
Description copied from interface:VisitableCommand
Accept a visitor, and return the result of accepting this visitor.- Parameters:
ctx
- invocation contextvisitor
- visitor to accept- Returns:
- arbitrary return value
- Throws:
Throwable
- in the event of problems
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loadType
public VisitableCommand.LoadType loadType()
- Returns:
- Nodes on which the command needs to read the previous values of the keys it acts on.
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perform
public Object perform(InvocationContext ctx) throws Throwable
Description copied from interface:VisitableCommand
Performs the primary function of the command. Please see specific implementation classes for details on what is performed as well as return types. Important: this method will be invoked at the end of interceptors chain. It should never be called directly from a custom interceptor.- Parameters:
ctx
- invocation context- Returns:
- arbitrary return value generated by performing this command
- Throws:
Throwable
- in the event of problems.
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getCommandId
public byte getCommandId()
Description copied from interface:ReplicableCommand
Used by marshallers to convert this command into an id for streaming.- Returns:
- the method id of this command. This is compatible with pre-2.2.0 MethodCall ids.
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writeTo
public void writeTo(ObjectOutput output) throws IOException
Description copied from interface:ReplicableCommand
Writes this instance to theObjectOutput
.- Parameters:
output
- the stream.- Throws:
IOException
- if an error occurred during the I/O.
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readFrom
public void readFrom(ObjectInput input) throws IOException, ClassNotFoundException
Description copied from interface:ReplicableCommand
Reads this instance from the stream written byReplicableCommand.writeTo(ObjectOutput)
.- Parameters:
input
- the stream to read.- Throws:
IOException
- if an error occurred during the I/O.ClassNotFoundException
- if it tries to load an undefined class.
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toString
public String toString()
- Overrides:
toString
in classAbstractDataCommand
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