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java.lang.Objectorg.axiondb.BaseSelectable
org.axiondb.functions.BaseFunction
org.axiondb.functions.DateDiffFunction
public class DateDiffFunction
Syntax: DATEDIFF(interval_type, timestamp1, timestamp2)
Field Summary |
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Fields inherited from class org.axiondb.BaseSelectable |
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_hash |
Constructor Summary | |
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DateDiffFunction()
Creates a new instance of Class |
Method Summary | |
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java.lang.Object |
evaluate(RowDecorator row)
Returns integer difference (timestamp2 - timestamp1) in units of interval of type interval_type. |
DataType |
getDataType()
DataType |
boolean |
isValid()
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ConcreteFunction |
makeNewInstance()
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Methods inherited from class org.axiondb.functions.BaseFunction |
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addArgument, getArgument, getArgumentCount, setArgument, setVariableContext, toString |
Methods inherited from class org.axiondb.BaseSelectable |
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getAlias, getLabel, getName, setAlias, setName |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Methods inherited from interface org.axiondb.Function |
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addArgument, getAlias, getArgument, getArgumentCount, getName, setAlias, setArgument |
Methods inherited from interface org.axiondb.Selectable |
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getLabel, setVariableContext |
Constructor Detail |
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public DateDiffFunction()
Method Detail |
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public ConcreteFunction makeNewInstance()
makeNewInstance
in interface FunctionFactory
public DataType getDataType()
DataType
getDataType
in interface Selectable
getDataType
in class BaseFunction
public java.lang.Object evaluate(RowDecorator row) throws AxionException
evaluate
in interface ScalarFunction
evaluate
in interface Selectable
AxionException
public boolean isValid()
isValid
in interface ConcreteFunction
isValid
in class BaseFunction
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