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Cassandra support for Spring Data
/*
* Copyright 2018-2019 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.mapping;
import org.springframework.data.cassandra.core.cql.CqlIdentifier;
import org.springframework.data.mapping.MappingException;
import org.springframework.data.mapping.model.Property;
import org.springframework.data.mapping.model.SimpleTypeHolder;
import org.springframework.lang.Nullable;
import org.springframework.util.Assert;
/**
* Cassandra Tuple specific {@link CassandraPersistentProperty} implementation.
*
* @author Mark Paluch
* @since 2.1
* @see Element
*/
public class BasicCassandraPersistentTupleProperty extends BasicCassandraPersistentProperty {
private final @Nullable Integer ordinal;
/**
* Create a new {@link BasicCassandraPersistentTupleProperty}.
*
* @param property the actual {@link Property} in the domain entity corresponding to this persistent entity.
* @param owner the containing object or {@link CassandraPersistentEntity} of this persistent property.
* @param simpleTypeHolder mapping of Java [simple|wrapper] types to Cassandra data types.
*/
public BasicCassandraPersistentTupleProperty(Property property, CassandraPersistentEntity owner,
SimpleTypeHolder simpleTypeHolder) {
this(property, owner, simpleTypeHolder, null);
}
/**
* Create a new {@link BasicCassandraPersistentTupleProperty}.
*
* @param property the actual {@link Property} in the domain entity corresponding to this persistent entity.
* @param owner the containing object or {@link CassandraPersistentEntity} of this persistent property.
* @param simpleTypeHolder mapping of Java [simple|wrapper] types to Cassandra data types.
* @param userTypeResolver resolver for user-defined types.
*/
public BasicCassandraPersistentTupleProperty(Property property, CassandraPersistentEntity owner,
SimpleTypeHolder simpleTypeHolder, @Nullable UserTypeResolver userTypeResolver) {
super(property, owner, simpleTypeHolder, userTypeResolver);
this.ordinal = findOrdinal();
}
@Nullable
private Integer findOrdinal() {
if (isTransient()) {
return null;
}
int ordinal;
try {
ordinal = getRequiredAnnotation(Element.class).value();
} catch (IllegalStateException cause) {
throw new MappingException(
String.format("Missing @Element annotation in mapped tuple type for property [%s] in entity [%s]", getName(),
getOwner().getName()),
cause);
}
Assert.isTrue(ordinal >= 0,
String.format("Element ordinal must be greater or equal to zero for property [%s] in entity [%s]", getName(),
getOwner().getName()));
return ordinal;
}
/* (non-Javadoc)
* @see org.springframework.data.cassandra.core.mapping.CassandraPersistentProperty#getColumnName()
*/
@Override
public CqlIdentifier getColumnName() {
return null;
}
/* (non-Javadoc)
* @see org.springframework.data.cassandra.core.mapping.BasicCassandraPersistentProperty#getOrdinal()
*/
@Nullable
@Override
public Integer getOrdinal() {
return this.ordinal;
}
/* (non-Javadoc)
* @see org.springframework.data.cassandra.core.mapping.CassandraPersistentProperty#isClusterKeyColumn()
*/
@Override
public boolean isClusterKeyColumn() {
return false;
}
/* (non-Javadoc)
* @see org.springframework.data.cassandra.core.mapping.CassandraPersistentProperty#isCompositePrimaryKey()
*/
@Override
public boolean isCompositePrimaryKey() {
return false;
}
/* (non-Javadoc)
* @see org.springframework.data.cassandra.core.mapping.CassandraPersistentProperty#isPartitionKeyColumn()
*/
@Override
public boolean isPartitionKeyColumn() {
return false;
}
/* (non-Javadoc)
* @see org.springframework.data.cassandra.core.mapping.CassandraPersistentProperty#isPrimaryKeyColumn()
*/
@Override
public boolean isPrimaryKeyColumn() {
return false;
}
/* (non-Javadoc)
* @see org.springframework.data.cassandra.core.mapping.CassandraPersistentProperty#setColumnName(org.springframework.data.cassandra.core.cql.CqlIdentifier)
*/
@Override
public void setColumnName(CqlIdentifier columnName) {
throw new UnsupportedOperationException("Cannot set a column name on a property representing a tuple element");
}
}