Class Count<T>
- java.lang.Object
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- uk.gov.gchq.gaffer.operation.impl.Count<T>
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- All Implemented Interfaces:
Closeable
,AutoCloseable
,Input<Iterable<? extends T>>
,InputOutput<Iterable<? extends T>,Long>
,MultiInput<T>
,Output<Long>
,Operation
public class Count<T> extends Object implements InputOutput<Iterable<? extends T>,Long>, MultiInput<T>
ACount
operation counts how many items there are in the providedIterable
.- See Also:
Count.Builder
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Nested Class Summary
Nested Classes Modifier and Type Class Description static class
Count.Builder<T>
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Nested classes/interfaces inherited from interface uk.gov.gchq.gaffer.operation.Operation
Operation.BaseBuilder<OP extends Operation,B extends Operation.BaseBuilder<OP,?>>
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Constructor Summary
Constructors Constructor Description Count()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description Iterable<? extends T>
getInput()
Map<String,String>
getOptions()
com.fasterxml.jackson.core.type.TypeReference<Long>
getOutputTypeReference()
void
setInput(Iterable<? extends T> input)
void
setOptions(Map<String,String> options)
Count
shallowClone()
Operation implementations should ensure a ShallowClone method is implemented.-
Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface uk.gov.gchq.gaffer.operation.io.MultiInput
createInputArray, setInput
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Methods inherited from interface uk.gov.gchq.gaffer.operation.Operation
_getNullOrOptions, addOption, containsOption, getOption, getOption, validate, validateRequiredFieldPresent
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Methods inherited from interface uk.gov.gchq.gaffer.operation.io.Output
castToOutputType, getOutputClass, getOutputType
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Method Detail
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getOutputTypeReference
public com.fasterxml.jackson.core.type.TypeReference<Long> getOutputTypeReference()
- Specified by:
getOutputTypeReference
in interfaceOutput<T>
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shallowClone
public Count shallowClone()
Description copied from interface:Operation
Operation implementations should ensure a ShallowClone method is implemented. Performs a shallow clone. Creates a new instance and copies the fields across. It does not clone the fields. If the operation contains nested operations, these must also be cloned.- Specified by:
shallowClone
in interfaceOperation
- Returns:
- shallow clone
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getOptions
public Map<String,String> getOptions()
- Specified by:
getOptions
in interfaceOperation
- Returns:
- the operation options. This may contain store specific options such as authorisation strings or and other properties required for the operation to be executed. Note these options will probably not be interpreted in the same way by every store implementation.
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setOptions
public void setOptions(Map<String,String> options)
- Specified by:
setOptions
in interfaceOperation
- Parameters:
options
- the operation options. This may contain store specific options such as authorisation strings or and other properties required for the operation to be executed. Note these options will probably not be interpreted in the same way by every store implementation.
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