org.springframework.data.hadoop.cascading.tap.local
Class ResourceTap
java.lang.Object
cascading.tap.Tap<Config,Input,java.lang.Void>
cascading.tap.SourceTap<java.util.Properties,org.springframework.core.io.Resource>
org.springframework.data.hadoop.cascading.tap.local.ResourceTap
- All Implemented Interfaces:
- cascading.flow.FlowElement, java.io.Serializable
public class ResourceTap
- extends cascading.tap.SourceTap<java.util.Properties,org.springframework.core.io.Resource>
SourceTap
for Spring's Resource
abstraction.
Multiple resources (resulting from pattern matching for example) can be used.
- Author:
- Costin Leau
- See Also:
- Serialized Form
Constructor Summary |
ResourceTap(cascading.scheme.Scheme<java.util.Properties,org.springframework.core.io.Resource,?,?,?> scheme,
org.springframework.core.io.Resource resource)
Constructs a new ResourceTap instance. |
ResourceTap(cascading.scheme.Scheme<java.util.Properties,org.springframework.core.io.Resource,?,?,?> scheme,
org.springframework.core.io.Resource[] resources)
Constructs a new ResourceTap instance. |
Method Summary |
java.lang.String |
getIdentifier()
|
long |
getModifiedTime(java.util.Properties conf)
|
cascading.tuple.TupleEntryIterator |
openForRead(cascading.flow.FlowProcess<java.util.Properties> flowProcess,
org.springframework.core.io.Resource input)
|
boolean |
resourceExists(java.util.Properties conf)
|
Methods inherited from class cascading.tap.SourceTap |
commitResource, createResource, deleteResource, getSinkFields, isSink, openForWrite, rollbackResource, sinkConfInit |
Methods inherited from class cascading.tap.Tap |
equals, flowConfInit, getConfigDef, getFullIdentifier, getScheme, getSinkMode, getSourceFields, getStepConfigDef, getTrace, hasConfigDef, hashCode, hasStepConfigDef, id, isEquivalentTo, isKeep, isReplace, isSource, isTemporary, isUpdate, openForRead, openForWrite, outgoingScopeFor, presentSinkFields, presentSourceFields, resolveIncomingOperationArgumentFields, resolveIncomingOperationPassThroughFields, retrieveSinkFields, retrieveSourceFields, setScheme, sourceConfInit, taps, toString |
Methods inherited from class java.lang.Object |
clone, finalize, getClass, notify, notifyAll, wait, wait, wait |
ResourceTap
public ResourceTap(cascading.scheme.Scheme<java.util.Properties,org.springframework.core.io.Resource,?,?,?> scheme,
org.springframework.core.io.Resource resource)
- Constructs a new
ResourceTap
instance.
- Parameters:
scheme
- scheme to useresource
- Resource to read from
ResourceTap
public ResourceTap(cascading.scheme.Scheme<java.util.Properties,org.springframework.core.io.Resource,?,?,?> scheme,
org.springframework.core.io.Resource[] resources)
- Constructs a new
ResourceTap
instance. Backed by multiple resources (
allowing for pattern matching to occur).
- Parameters:
scheme
- scheme to useresources
- Resources to read from
getIdentifier
public java.lang.String getIdentifier()
- Specified by:
getIdentifier
in class cascading.tap.Tap<java.util.Properties,org.springframework.core.io.Resource,java.lang.Void>
openForRead
public cascading.tuple.TupleEntryIterator openForRead(cascading.flow.FlowProcess<java.util.Properties> flowProcess,
org.springframework.core.io.Resource input)
throws java.io.IOException
- Specified by:
openForRead
in class cascading.tap.Tap<java.util.Properties,org.springframework.core.io.Resource,java.lang.Void>
- Throws:
java.io.IOException
resourceExists
public boolean resourceExists(java.util.Properties conf)
throws java.io.IOException
- Specified by:
resourceExists
in class cascading.tap.Tap<java.util.Properties,org.springframework.core.io.Resource,java.lang.Void>
- Throws:
java.io.IOException
getModifiedTime
public long getModifiedTime(java.util.Properties conf)
throws java.io.IOException
- Specified by:
getModifiedTime
in class cascading.tap.Tap<java.util.Properties,org.springframework.core.io.Resource,java.lang.Void>
- Throws:
java.io.IOException