// $Id: Query.java 48 2006-07-12 16:15:40Z caron $
/*
* Copyright 1998-2009 University Corporation for Atmospheric Research/Unidata
*
* Portions of this software were developed by the Unidata Program at the
* University Corporation for Atmospheric Research.
*
* Access and use of this software shall impose the following obligations
* and understandings on the user. The user is granted the right, without
* any fee or cost, to use, copy, modify, alter, enhance and distribute
* this software, and any derivative works thereof, and its supporting
* documentation for any purpose whatsoever, provided that this entire
* notice appears in all copies of the software, derivative works and
* supporting documentation. Further, UCAR requests that the user credit
* UCAR/Unidata in any publications that result from the use of this
* software or in any product that includes this software. The names UCAR
* and/or Unidata, however, may not be used in any advertising or publicity
* to endorse or promote any products or commercial entity unless specific
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* any support, consulting, training or assistance of any kind with regard
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*
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL UCAR/UNIDATA BE LIABLE FOR ANY SPECIAL,
* INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
* FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
* WITH THE ACCESS, USE OR PERFORMANCE OF THIS SOFTWARE.
*/
package thredds.catalog.query;
import java.net.URI;
/**
* Implementation of a DQC query element.
*
* @author john caron
*/
public class Query {
private String base;
private URI uriResolved;
private String construct;
/**
* Construct from fields in XML catalog.
* @param base : base URL of the query
* @param construct : How to construct the query (not used in 0.3).
*/
public Query( String base, URI uriResolved, String construct) {
this.base = base;
this.uriResolved = uriResolved;
this.construct = construct;
}
public String getBase() { return base; }
public URI getUriResolved() { return uriResolved; }
public String getConstruct() { return construct; } // for 0.2
public String getReturns() { return "catalog"; } // for 0.2
/** String representation */
public String toString() {
return "base="+base+" construct="+construct;
}
//////////////////////////////////////////////////////////////////////////////
public boolean equals(Object o) {
if (this == o) return true;
if (!(o instanceof Query)) return false;
return o.hashCode() == this.hashCode();
}
/** Override Object.hashCode() to implement equals. */
public int hashCode() {
if (hashCode == 0) {
int result = 17;
if (null != getBase())
result = 37*result + getBase().hashCode();
if (null != getUriResolved())
result = 37*result + getUriResolved().hashCode();
if (null != getConstruct())
result = 37*result + getConstruct().hashCode();
hashCode = result;
}
return hashCode;
}
private volatile int hashCode = 0; // Bloch, item 8
}