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Cassandra support for Spring Data
/*
* Copyright 2020-2022 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.function.Supplier;
import java.util.stream.Collectors;
import org.springframework.data.util.ClassTypeInformation;
import org.springframework.data.util.Lazy;
import org.springframework.data.util.TypeInformation;
import com.datastax.oss.driver.api.core.type.DataType;
import com.datastax.oss.driver.api.core.type.UserDefinedType;
/**
* Default {@link CassandraColumnType} implementation.
*
* @author Mark Paluch
* @since 3.0
*/
class DefaultCassandraColumnType extends DefaultColumnType implements CassandraColumnType {
private final Lazy dataType;
DefaultCassandraColumnType(Class type, DataType dataType, ColumnType... parameters) {
this(ClassTypeInformation.from(type), dataType, parameters);
}
DefaultCassandraColumnType(TypeInformation typeInformation, Supplier dataType,
ColumnType... parameters) {
super(typeInformation, parameters);
this.dataType = Lazy.of(dataType);
}
DefaultCassandraColumnType(TypeInformation typeInformation, DataType dataType, ColumnType... parameters) {
super(typeInformation, parameters);
this.dataType = Lazy.of(dataType);
}
/*
* (non-Javadoc)
* @see org.springframework.data.cassandra.core.convert.CassandraColumnType#getDataType()
*/
public DataType getDataType() {
return dataType.get();
}
/*
* (non-Javadoc)
* @see org.springframework.data.cassandra.core.convert.DefaultColumnType#toString()
*/
@Override
public String toString() {
StringBuilder builder = new StringBuilder();
if (isTupleType()) {
builder.append("Tuple: ");
}
if (isUserDefinedType()) {
builder.append("UDT: ").append(((UserDefinedType) getDataType()).getName());
}
builder.append(getType().getName()).append(" [").append(getDataType()).append("]");
if (getParameters().isEmpty()) {
return builder.toString();
}
builder.append("<").append(getParameters().stream().map(Object::toString).collect(Collectors.toList())).append(">");
return builder.toString();
}
}