org.modeshape.jcr.cache.ReferentialIntegrityException Maven / Gradle / Ivy
/*
* ModeShape (http://www.modeshape.org)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.modeshape.jcr.cache;
import java.util.Collections;
import java.util.Set;
import org.modeshape.jcr.JcrI18n;
/**
* An exception signalling that a set of nodes could not be deleted because there are other nodes that contain JCR REFERENCE
* properties pointing to these nodes, preventing their deletion.
*/
public class ReferentialIntegrityException extends RuntimeException {
private static final long serialVersionUID = 1L;
private final Set referrers;
private final Set removedNodes;
/**
* @param removedNodes the nodes that are being removed; may not be null or empty
* @param referrers the set of node keys that refer to nodes being removed; may not be null or empty
*/
public ReferentialIntegrityException( Set removedNodes,
Set referrers ) {
this.referrers = Collections.unmodifiableSet(referrers);
this.removedNodes = Collections.unmodifiableSet(removedNodes);
assert this.removedNodes != null;
assert this.referrers != null;
assert !this.referrers.isEmpty();
assert !this.removedNodes.isEmpty();
}
/**
* Get the set of node keys that contain REFERENCE properties to nodes being deleted, and therefore prevent the removal.
*
* @return the immutable set of node keys to the referring nodes; never null and never empty
*/
public Set getReferrers() {
return referrers;
}
/**
* Get the set of keys to the nodes that were removed.
*
* @return the immutable set of keys to the removed nodes; never null and never empty
*/
public Set getRemovedNodes() {
return removedNodes;
}
@Override
public String getMessage() {
return JcrI18n.referentialIntegrityException.text(removedNodes, referrers);
}
}
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