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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with this
* work for additional information regarding copyright ownership. The ASF
* licenses this file to You 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.apache.hugegraph.backend.store.palo;
import org.apache.hugegraph.backend.store.BackendFeatures;
public class PaloFeatures implements BackendFeatures {
@Override
public boolean supportsScanToken() {
return false;
}
@Override
public boolean supportsScanKeyPrefix() {
return false;
}
@Override
public boolean supportsScanKeyRange() {
return false;
}
@Override
public boolean supportsQuerySchemaByName() {
return true;
}
@Override
public boolean supportsQueryByLabel() {
/*
* Create a rollup table on vertices/edges can speed up query by label,
* but it will store data in vertices/edges again.
* See: https://github.com/baidu/palo/wiki/Data-Model%2C-Rollup-%26
* -Prefix-Index
*/
return false;
}
@Override
public boolean supportsQueryWithInCondition() {
return false;
}
@Override
public boolean supportsQueryWithRangeCondition() {
return true;
}
@Override
public boolean supportsQuerySortByInputIds() {
return false;
}
@Override
public boolean supportsQueryWithContains() {
return false;
}
@Override
public boolean supportsQueryWithContainsKey() {
return false;
}
@Override
public boolean supportsQueryWithOrderBy() {
return true;
}
@Override
public boolean supportsQueryByPage() {
return true;
}
@Override
public boolean supportsDeleteEdgeByLabel() {
return true;
}
@Override
public boolean supportsUpdateVertexProperty() {
return false;
}
@Override
public boolean supportsMergeVertexProperty() {
return false;
}
@Override
public boolean supportsUpdateEdgeProperty() {
return false;
}
@Override
public boolean supportsTransaction() {
return false;
}
@Override
public boolean supportsNumberType() {
return true;
}
@Override
public boolean supportsAggregateProperty() {
return false;
}
@Override
public boolean supportsTtl() {
return false;
}
@Override
public boolean supportsOlapProperties() {
return false;
}
}