com.hazelcast.sql.impl.extract.GenericTargetExtractor Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2021, Hazelcast, Inc. All Rights Reserved.
*
* 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 com.hazelcast.sql.impl.extract;
import com.hazelcast.sql.impl.QueryException;
import com.hazelcast.sql.impl.type.QueryDataType;
import com.hazelcast.sql.impl.type.QueryDataTypeMismatchException;
/**
* An extractor that returns the target itself.
*/
public class GenericTargetExtractor extends AbstractGenericExtractor {
public GenericTargetExtractor(boolean key, GenericTargetAccessor targetAccessor, QueryDataType type) {
super(key, targetAccessor, type);
}
@Override
public Object get() {
try {
return targetAccessor.getTargetForDirectAccess(type);
} catch (QueryDataTypeMismatchException e) {
throw QueryException.dataException("Failed to extract map entry " + (key ? "key" : "value")
+ " because of type mismatch [expectedClass=" + e.getExpectedClass().getName()
+ ", actualClass=" + e.getActualClass().getName() + ']');
} catch (Exception e) {
throw QueryException.dataException("Failed to extract map entry " + (key ? "key" : "value") + ": "
+ e.getMessage(), e);
}
}
}