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Cassandra support for Spring Data
/*
* Copyright 2020-2023 the original author or authors.
*
* 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
*
* https://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.springframework.data.cassandra.core.convert;
import java.util.Arrays;
import java.util.List;
import java.util.Set;
import java.util.stream.Collectors;
import org.springframework.data.util.TypeInformation;
import org.springframework.lang.Nullable;
/**
* Default {@link ColumnType} implementation.
*
* @author Mark Paluch
* @since 3.0
*/
class DefaultColumnType implements ColumnType {
public static final DefaultColumnType OBJECT = new DefaultColumnType(TypeInformation.OBJECT);
private final TypeInformation typeInformation;
private final List parameters;
DefaultColumnType(TypeInformation typeInformation, ColumnType... parameters) {
this.typeInformation = typeInformation;
this.parameters = Arrays.asList(parameters);
}
List getParameters() {
return parameters;
}
@Override
public Class getType() {
return typeInformation.getType();
}
@Override
public boolean isCollectionLike() {
return typeInformation.isCollectionLike();
}
@Override
public boolean isList() {
return List.class.isAssignableFrom(typeInformation.getType());
}
@Override
public boolean isSet() {
return Set.class.isAssignableFrom(typeInformation.getType());
}
@Override
public boolean isMap() {
return typeInformation.isMap();
}
@Nullable
@Override
public ColumnType getComponentType() {
return !parameters.isEmpty() ? parameters.get(0) : null;
}
@Nullable
@Override
public ColumnType getMapValueType() {
return parameters.size() > 1 ? parameters.get(1) : null;
}
@Override
public String toString() {
if (parameters.isEmpty()) {
return getType().getName();
}
return String.format("%s<%s>", getType().getName(),
parameters.stream().map(Object::toString).collect(Collectors.toList()));
}
}