Java Doc for Collection_BoundsFunction.java in  » GIS » GeoTools-2.4.1 » org » geotools » filter » function » 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.filter.function   Source Cross Reference   Class Diagram   Java Document (Java Doc)   org.geotools.filter.DefaultExpression    org.geotools.filter.FunctionExpressionImpl       org.geotools.filter.function.Collection_BoundsFunction Collection_BoundsFunction public class Collection_BoundsFunction extends FunctionExpressionImpl (Code) Calculates the bounds of an attribute for a given FeatureCollection and Expression. author:    Cory Horner since:    2.2M2 Field Summary  Object bounds       FeatureCollection previousFeatureCollection      Constructor Summary public   Collection_BoundsFunction()      Method Summary public static  CalcResult calculateBounds(FeatureCollection collection)      Calculate unique (using FeatureCalc) - only one parameter is used. public  Object evaluate(Object feature)      public  int getArgCount()      public  void setExpression(Expression e)      public  void setParameters(List args)      The provided arguments are evaulated with respect to the FeatureCollection. Field Detail bounds Object bounds(Code) previousFeatureCollection FeatureCollection previousFeatureCollection(Code) Constructor Detail Collection_BoundsFunction public Collection_BoundsFunction()(Code) Creates a new instance of Collection_BoundsFunction Method Detail calculateBounds public static CalcResult calculateBounds(FeatureCollection collection) throws IllegalFilterException, IOException(Code) Calculate unique (using FeatureCalc) - only one parameter is used. Parameters:   collection - collection to calculate the unique An object containing the unique value of the attributes throws:   IllegalFilterException - throws:   IOException - evaluate public Object evaluate(Object feature)(Code) getArgCount public int getArgCount()(Code) setExpression public void setExpression(Expression e)(Code) setParameters public void setParameters(List args)(Code) The provided arguments are evaulated with respect to the FeatureCollection. For an aggregate function (like unique) please use the WFS mandated XPath syntax to refer to featureMember content. To refer to all 'X': featureMember/asterisk/X Parameters:   args - DOCUMENT ME! throws:   IllegalArgumentException - DOCUMENT ME! Methods inherited from org.geotools.filter.FunctionExpressionImpl public Object accept(ExpressionVisitor visitor, Object extraData)(Code)(Java Doc) public boolean equals(Object obj)(Code)(Java Doc) abstract public int getArgCount()(Code)(Java Doc) public Expression[] getArgs()(Code)(Java Doc) protected org.opengis.filter.expression.Expression getExpression(int index)(Code)(Java Doc) public Map getImplementationHints()(Code)(Java Doc) public String getName()(Code)(Java Doc) public List getParameters()(Code)(Java Doc) public short getType()(Code)(Java Doc) public void setArgs(Expression[] args)(Code)(Java Doc) public void setName(String name)(Code)(Java Doc) public void setParameters(List params)(Code)(Java Doc) public String toString()(Code)(Java Doc) Fields inherited from org.geotools.filter.DefaultExpression protected short expressionType(Code)(Java Doc) protected boolean permissiveConstruction(Code)(Java Doc) Methods inherited from org.geotools.filter.DefaultExpression final public void accept(FilterVisitor visitor)(Code)(Java Doc) public Object evaluate(Feature feature)(Code)(Java Doc) public Object evaluate(Object object)(Code)(Java Doc) public short getType()(Code)(Java Doc) final public Object getValue(Feature feature)(Code)(Java Doc) protected static boolean isAttributeExpression(short expressionType)(Code)(Java Doc) protected static boolean isExpression(short expressionType)(Code)(Java Doc) public static boolean isFunctionExpression(short expressionType)(Code)(Java Doc) protected static boolean isGeometryExpression(short expressionType)(Code)(Java Doc) protected static boolean isLiteralExpression(short expressionType)(Code)(Java Doc) protected static boolean isMathExpression(short expressionType)(Code)(Java Doc) protected static boolean isMathExpression(org.opengis.filter.expression.Expression expression)(Code)(Java Doc)