Java Doc for SignFunction.java in  » Database-DBMS » axion » org » axiondb » functions » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Database DBMS » axion » org.axiondb.functions   Source Cross Reference   Class Diagram   Java Document (Java Doc)   org.axiondb.functions.BaseFunction    org.axiondb.functions.SignFunction SignFunction public class SignFunction extends BaseFunction implements ScalarFunction,FunctionFactory(Code) Returns an indicator of the sign of the given double value. If the value is less than zero, -1 is returned. If the value equals zero, 0 is returned. If the value is greater than zero, 1 is returned. version:    $Revision: 1.7 $ $Date: 2005/12/20 18:32:28 $ author:    Sudhendra Seshachala author:    Ahimanikya Satapathy Constructor Summary public   SignFunction()      Method Summary public  Object evaluate(RowDecorator row)      public  DataType getDataType()      public  boolean isValid()      public  ConcreteFunction makeNewInstance()      Constructor Detail SignFunction public SignFunction()(Code) Creates a new instance of Class Method Detail evaluate public Object evaluate(RowDecorator row) throws AxionException(Code) getDataType public DataType getDataType()(Code) IntegerType isValid public boolean isValid()(Code) makeNewInstance public ConcreteFunction makeNewInstance()(Code) Methods inherited from org.axiondb.functions.BaseFunction public void addArgument(Selectable arg)(Code)(Java Doc) public Selectable getArgument(int i)(Code)(Java Doc) public int getArgumentCount()(Code)(Java Doc) abstract public DataType getDataType()(Code)(Java Doc) abstract public boolean isValid()(Code)(Java Doc) public void setArgument(int i, Selectable arg)(Code)(Java Doc) public void setVariableContext(VariableContext context)(Code)(Java Doc) public String toString()(Code)(Java Doc)