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BaseListDescriptorImpl.java
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BaseListDescriptorImpl.java
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/**
* Copyright (C) 2019 Czech Technical University in Prague
*
* This program is free software: you can redistribute it and/or modify it under
* the terms of the GNU General Public License as published by the Free Software
* Foundation, either version 3 of the License, or (at your option) any
* later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details. You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package cz.cvut.kbss.ontodriver.descriptor;
import cz.cvut.kbss.ontodriver.model.Assertion;
import cz.cvut.kbss.ontodriver.model.NamedResource;
import cz.cvut.kbss.ontodriver.util.ErrorUtils;
import java.net.URI;
import java.util.Objects;
final class BaseListDescriptorImpl implements ListDescriptor {
private final NamedResource listOwner;
private final Assertion listProperty;
private final Assertion nextNode;
private URI context;
public BaseListDescriptorImpl(NamedResource listOwner, Assertion listProperty, Assertion nextNode) {
this.listOwner = Objects.requireNonNull(listOwner, ErrorUtils.getNPXMessageSupplier("listOwner"));
this.listProperty = Objects.requireNonNull(listProperty, ErrorUtils.getNPXMessageSupplier("listProperty"));
this.nextNode = Objects.requireNonNull(nextNode, ErrorUtils.getNPXMessageSupplier("nextNode"));
}
@Override
public URI getContext() {
return context;
}
@Override
public void setContext(URI context) {
// null permitted here
this.context = context;
}
@Override
public NamedResource getListOwner() {
return listOwner;
}
@Override
public Assertion getListProperty() {
return listProperty;
}
@Override
public Assertion getNextNode() {
return nextNode;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + listOwner.hashCode();
result = prime * result + listProperty.hashCode();
result = prime * result + nextNode.hashCode();
result = prime * result + ((context == null) ? 0 : context.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
BaseListDescriptorImpl other = (BaseListDescriptorImpl) obj;
if (!listOwner.equals(other.listOwner))
return false;
if (!listProperty.equals(other.listProperty))
return false;
if (!nextNode.equals(other.nextNode))
return false;
if (context == null) {
return other.context == null;
} else return context.equals(other.context);
}
@Override
public String toString() {
return "owner = " + listOwner + ", list = " + listProperty + ", next node = " + nextNode + ", context = " +
context;
}
}