org.neo4j.kernel.impl.newapi.ReadOnlyTokenRead Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of neo4j-kernel Show documentation
Show all versions of neo4j-kernel Show documentation
Neo4j kernel is a lightweight, embedded Java database designed to
store data structured as graphs rather than tables. For more
information, see http://neo4j.org.
/*
* Copyright (c) "Neo4j"
* Neo4j Sweden AB [https://neo4j.com]
*
* This file is part of Neo4j.
*
* Neo4j 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 .
*/
package org.neo4j.kernel.impl.newapi;
import java.util.Iterator;
import org.neo4j.internal.kernel.api.TokenRead;
import org.neo4j.internal.kernel.api.exceptions.LabelNotFoundKernelException;
import org.neo4j.internal.kernel.api.exceptions.PropertyKeyIdNotFoundKernelException;
import org.neo4j.internal.kernel.api.exceptions.RelationshipTypeIdNotFoundKernelException;
import org.neo4j.token.TokenHolders;
import org.neo4j.token.api.NamedToken;
import org.neo4j.token.api.TokenNotFoundException;
public class ReadOnlyTokenRead implements TokenRead {
private final TokenHolders tokenHolders;
public ReadOnlyTokenRead(TokenHolders tokenHolders) {
this.tokenHolders = tokenHolders;
}
@Override
public int nodeLabel(String name) {
return tokenHolders.labelTokens().getIdByName(name);
}
@Override
public String nodeLabelName(int labelId) throws LabelNotFoundKernelException {
try {
return tokenHolders.labelTokens().getTokenById(labelId).name();
} catch (TokenNotFoundException e) {
throw new LabelNotFoundKernelException(labelId, e);
}
}
@Override
public int relationshipType(String name) {
return tokenHolders.relationshipTypeTokens().getIdByName(name);
}
@Override
public String relationshipTypeName(int relationshipTypeId) throws RelationshipTypeIdNotFoundKernelException {
try {
return tokenHolders
.relationshipTypeTokens()
.getTokenById(relationshipTypeId)
.name();
} catch (TokenNotFoundException e) {
throw new RelationshipTypeIdNotFoundKernelException(relationshipTypeId, e);
}
}
@Override
public int propertyKey(String name) {
return tokenHolders.propertyKeyTokens().getIdByName(name);
}
@Override
public String propertyKeyName(int propertyKeyId) throws PropertyKeyIdNotFoundKernelException {
try {
return tokenHolders.propertyKeyTokens().getTokenById(propertyKeyId).name();
} catch (TokenNotFoundException e) {
throw new PropertyKeyIdNotFoundKernelException(propertyKeyId, e);
}
}
@Override
public Iterator labelsGetAllTokens() {
return tokenHolders.labelTokens().getAllTokens().iterator();
}
@Override
public Iterator propertyKeyGetAllTokens() {
return tokenHolders.propertyKeyTokens().getAllTokens().iterator();
}
@Override
public Iterator relationshipTypesGetAllTokens() {
return tokenHolders.relationshipTypeTokens().getAllTokens().iterator();
}
@Override
public int labelCount() {
return tokenHolders.labelTokens().size();
}
@Override
public int propertyKeyCount() {
return tokenHolders.propertyKeyTokens().size();
}
@Override
public int relationshipTypeCount() {
return tokenHolders.relationshipTypeTokens().size();
}
@Override
public String labelGetName(int labelId) {
return tokenHolders.labelGetName(labelId);
}
@Override
public String relationshipTypeGetName(int relationshipTypeId) {
return tokenHolders.relationshipTypeGetName(relationshipTypeId);
}
@Override
public String propertyKeyGetName(int propertyKeyId) {
return tokenHolders.propertyKeyGetName(propertyKeyId);
}
}