Interface Function
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- All Superinterfaces:
AssignmentTestable
- All Known Subinterfaces:
AggregateFunction
,ScalarFunction
- All Known Implementing Classes:
AbstractFunction
,FromJsonFct
,JavaBasedUDFunction
,NativeAggregateFunction
,NativeFunction
,NativeScalarFunction
,ToJsonFct
,TokenFct
,UDAggregate
,UDFunction
public interface Function extends AssignmentTestable
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Nested Class Summary
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Nested classes/interfaces inherited from interface org.apache.cassandra.cql3.AssignmentTestable
AssignmentTestable.TestResult
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Method Summary
All Methods Instance Methods Abstract Methods Default Methods Modifier and Type Method Description void
addFunctionsTo(java.util.List<Function> functions)
java.util.List<AbstractType<?>>
argTypes()
java.lang.String
columnName(java.util.List<java.lang.String> columnNames)
Returns the name of the function to use within a ResultSet.default java.util.Optional<Difference>
compare(Function other)
boolean
isAggregate()
Checks whether the function is an aggregate function or not.boolean
isNative()
Checks whether the function is a native/hard coded one or not.FunctionName
name()
boolean
referencesUserType(java.nio.ByteBuffer name)
AbstractType<?>
returnType()
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Methods inherited from interface org.apache.cassandra.cql3.AssignmentTestable
testAssignment
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Method Detail
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name
FunctionName name()
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argTypes
java.util.List<AbstractType<?>> argTypes()
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returnType
AbstractType<?> returnType()
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isNative
boolean isNative()
Checks whether the function is a native/hard coded one or not.- Returns:
true
if the function is a native/hard coded one,false
otherwise.
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isAggregate
boolean isAggregate()
Checks whether the function is an aggregate function or not.- Returns:
true
if the function is an aggregate function,false
otherwise.
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addFunctionsTo
void addFunctionsTo(java.util.List<Function> functions)
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referencesUserType
boolean referencesUserType(java.nio.ByteBuffer name)
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columnName
java.lang.String columnName(java.util.List<java.lang.String> columnNames)
Returns the name of the function to use within a ResultSet.- Parameters:
columnNames
- the names of the columns used to call the function- Returns:
- the name of the function to use within a ResultSet
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compare
default java.util.Optional<Difference> compare(Function other)
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