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package grammar;
/**
* MetaDataExpr
* Creation date: (3/3/2003 2:28:43 AM)
* @author: mattia parigiani, Sorin Stancu-Mara, Andrei Aiordachioaie
*/
public class MetaDataExpr implements IParseTreeNode {
String function;
CoverageExpr expr;
IParseTreeNode param;
String field;
// Identifier, ImageCRS, ImageCRSDomain, CrsSet, NullSet
public MetaDataExpr(String op, CoverageExpr expr)
{
function = op;
this.expr = expr;
}
// ImageCRSDomain, interpolationDefault, interpolationSet
public MetaDataExpr(String op, CoverageExpr expr, String str)
{
function = op;
this.expr = expr;
this.field = str;
}
public MetaDataExpr(DomainExpr dom)
{
function = "domain";
param = dom;
}
public String toXML()
{
String result = "";
if (function.equalsIgnoreCase("imageCrsDomain"))
{
result += "<imageCrsDomain>";
result += expr.toXML();
if (field != null)
result += "<axis>" + field + "</axis>";
result += "</imageCrsDomain>";
}
else if (function.equalsIgnoreCase("domain"))
{
result = "<DomainMetadata>" + param.toXML() + "</DomainMetadata>";
}
else if (function.equalsIgnoreCase("interpolationDefault"))
{
result += "<interpolationDefault>";
result += expr.toXML();
result += "<name>" + param + "</param>";
result += "</interpolationDefault>";
}
else if (function.equalsIgnoreCase("interpolationSet"))
{
result += "<interpolationSet>";
result += expr.toXML();
result += "<name>" + param + "</param>";
result += "</interpolationSet>";
}
else if (function.equalsIgnoreCase("identifier") || function.equalsIgnoreCase("imageCRS")
|| function.equalsIgnoreCase("crsSet") || function.equalsIgnoreCase("nullSet"))
{
result += "<" + function + ">";
result += expr.toXML();
result += "</" + function + ">";
}
else
{
System.err.println("Unknown MetadataExpr operation: " + function);
}
return result;
}
}
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