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EntityReadOperations.java
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EntityReadOperations.java
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/*
* Copyright (c) 2002-2017 "Neo Technology,"
* Network Engine for Objects in Lund AB [http://neotechnology.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 <http://www.gnu.org/licenses/>.
*/
package org.neo4j.kernel.impl.api.operations;
import org.neo4j.collection.primitive.PrimitiveIntIterator;
import org.neo4j.collection.primitive.PrimitiveLongIterator;
import org.neo4j.cursor.Cursor;
import org.neo4j.kernel.api.exceptions.EntityNotFoundException;
import org.neo4j.kernel.api.exceptions.index.IndexNotFoundKernelException;
import org.neo4j.kernel.api.exceptions.schema.IndexBrokenKernelException;
import org.neo4j.kernel.api.index.IndexDescriptor;
import org.neo4j.kernel.impl.api.KernelStatement;
import org.neo4j.kernel.impl.api.RelationshipVisitor;
import org.neo4j.storageengine.api.NodeItem;
import org.neo4j.storageengine.api.RelationshipItem;
public interface EntityReadOperations
{
/**
* @param labelId the label id of the label that returned nodes are guaranteed to have
* @return ids of all nodes that have the given label
*/
PrimitiveLongIterator nodesGetForLabel( KernelStatement state, int labelId );
/**
* Returns an iterable with the matched nodes.
*
* @throws IndexNotFoundKernelException if no such index found.
*/
PrimitiveLongIterator nodesGetFromIndexSeek( KernelStatement state, IndexDescriptor index, Object value )
throws IndexNotFoundKernelException;
/**
* Returns an iterable with the matched nodes.
*
* @throws IndexNotFoundKernelException if no such index found.
*/
PrimitiveLongIterator nodesGetFromIndexRangeSeekByNumber( KernelStatement state,
IndexDescriptor index,
Number lower,
boolean includeLower,
Number upper,
boolean includeUpper )
throws IndexNotFoundKernelException;
/**
* Returns an iterable with the matched nodes.
*
* @throws IndexNotFoundKernelException if no such index found.
*/
PrimitiveLongIterator nodesGetFromIndexRangeSeekByString( KernelStatement state,
IndexDescriptor index,
String lower,
boolean includeLower,
String upper,
boolean includeUpper )
throws IndexNotFoundKernelException;
/**
* Returns an iterable with the matched nodes.
*
* @throws IndexNotFoundKernelException if no such index found.
*/
PrimitiveLongIterator nodesGetFromIndexRangeSeekByPrefix( KernelStatement state,
IndexDescriptor index,
String prefix )
throws IndexNotFoundKernelException;
/**
* Returns an iterable with the matched nodes.
*
* @throws IndexNotFoundKernelException if no such index found.
*/
PrimitiveLongIterator nodesGetFromIndexScan( KernelStatement state, IndexDescriptor index )
throws IndexNotFoundKernelException;
/**
* Returns an iterable with the matched nodes.
*
* @throws IndexNotFoundKernelException if no such index found.
*/
PrimitiveLongIterator nodesGetFromIndexContainsScan( KernelStatement state, IndexDescriptor index, String term )
throws IndexNotFoundKernelException;
/**
* Returns an iterable with the matched nodes.
*
* @throws IndexNotFoundKernelException if no such index found.
*/
PrimitiveLongIterator nodesGetFromIndexEndsWithScan( KernelStatement state, IndexDescriptor index, String suffix )
throws IndexNotFoundKernelException;
/**
* Returns an iterable with the matched node.
*
* @throws IndexNotFoundKernelException if no such index found.
* @throws IndexBrokenKernelException if we found an index that was corrupt or otherwise in a failed state.
*/
long nodeGetFromUniqueIndexSeek( KernelStatement state, IndexDescriptor index, Object value )
throws IndexNotFoundKernelException, IndexBrokenKernelException;
long nodesCountIndexed( KernelStatement statement, IndexDescriptor index, long nodeId, Object value )
throws IndexNotFoundKernelException, IndexBrokenKernelException;
boolean graphHasProperty( KernelStatement state, int propertyKeyId );
Object graphGetProperty( KernelStatement state, int propertyKeyId );
/**
* Return all property keys associated with a relationship.
*/
PrimitiveIntIterator graphGetPropertyKeys( KernelStatement state );
PrimitiveLongIterator nodesGetAll( KernelStatement state );
PrimitiveLongIterator relationshipsGetAll( KernelStatement state );
<EXCEPTION extends Exception> void relationshipVisit( KernelStatement statement, long relId,
RelationshipVisitor<EXCEPTION> visitor ) throws EntityNotFoundException, EXCEPTION;
Cursor<NodeItem> nodeCursorById( KernelStatement statement, long nodeId ) throws EntityNotFoundException;
Cursor<RelationshipItem> relationshipCursorById( KernelStatement statement, long relId )
throws EntityNotFoundException;
Cursor<RelationshipItem> relationshipCursorGetAll( KernelStatement statement );
Cursor<NodeItem> nodeCursorGetForLabel( KernelStatement statement, int labelId );
long nodesGetCount( KernelStatement statement );
long relationshipsGetCount( KernelStatement statement );
boolean nodeExists( KernelStatement statement, long id );
}