Java Doc for MaxVisitor.java in  » GIS » GeoTools-2.4.1 » org » geotools » feature » visitor » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » GIS » GeoTools 2.4.1 » org.geotools.feature.visitor   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    org.geotools.feature.visitor.MaxVisitor MaxVisitor public class MaxVisitor implements FeatureCalc(Code) Calculates the maximum value of an attribute. author:    Cory Horner, Refractions Research Inc. since:    2.2.M2 Inner Class :public static class MaxResult extends AbstractCalcResult Field Summary  int countNaN       int countNull       Comparable curvalue       Comparable maxvalue       boolean visited      Constructor Summary public   MaxVisitor(String attributeTypeName)      public   MaxVisitor(int attributeTypeIndex, FeatureType type)      public   MaxVisitor(String attrName, FeatureType type)      public   MaxVisitor(Expression expr)      Method Summary public  Expression getExpression()      public  Comparable getMax()      Get the max value. public  int getNaNCount()      public  int getNullCount()      public  CalcResult getResult()      public  void reset()      public  void setValue(Object result)      Overwrites the result stored by the visitor. public  void visit(Feature feature)      Visitor function, which looks at each feature and finds the maximum. Field Detail countNaN int countNaN(Code) countNull int countNull(Code) curvalue Comparable curvalue(Code) maxvalue Comparable maxvalue(Code) visited boolean visited(Code) Constructor Detail MaxVisitor public MaxVisitor(String attributeTypeName)(Code) MaxVisitor public MaxVisitor(int attributeTypeIndex, FeatureType type) throws IllegalFilterException(Code) MaxVisitor public MaxVisitor(String attrName, FeatureType type) throws IllegalFilterException(Code) MaxVisitor public MaxVisitor(Expression expr) throws IllegalFilterException(Code) Method Detail getExpression public Expression getExpression()(Code) getMax public Comparable getMax()(Code) Get the max value. Max value throws:   IllegalStateException - DOCUMENT ME! getNaNCount public int getNaNCount()(Code) the number of features which returned a NaN getNullCount public int getNullCount()(Code) the number of features which returned a null getResult public CalcResult getResult()(Code) reset public void reset()(Code) setValue public void setValue(Object result)(Code) Overwrites the result stored by the visitor. This should only be used by optimizations which will tell the visitor the answer rather than visiting all features. For 'max', the value stored is of type 'Comparable'. Parameters:   result - visit public void visit(Feature feature)(Code) Visitor function, which looks at each feature and finds the maximum. Parameters:   feature - the feature to be visited Methods inherited from java.lang.Object native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc) public boolean equals(Object obj)(Code)(Java Doc) protected void finalize() throws Throwable(Code)(Java Doc) final native public Class getClass()(Code)(Java Doc) native public int hashCode()(Code)(Java Doc) final native public void notify()(Code)(Java Doc) final native public void notifyAll()(Code)(Java Doc) public String toString()(Code)(Java Doc) final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc) final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc) final public void wait() throws InterruptedException(Code)(Java Doc)