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java.lang.Objectorg.axiondb.BaseSelectable
org.axiondb.functions.BaseFunction
org.axiondb.functions.InStringFunction
public class InStringFunction
INSTR(str,substr): Returns the position of the first occurrence of substring substr in string str.
Field Summary |
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Fields inherited from class org.axiondb.BaseSelectable |
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_hash |
Constructor Summary | |
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InStringFunction()
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Method Summary | |
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java.lang.Object |
evaluate(RowDecorator row)
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DataType |
getDataType()
StringType |
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 InStringFunction()
Method Detail |
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public ConcreteFunction makeNewInstance()
makeNewInstance
in interface FunctionFactory
public DataType getDataType()
StringType
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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