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A Speedment bundle that shades all dependencies into one jar. This is
useful when deploying an application on a server.
/**
*
* Copyright (c) 2006-2017, Speedment, 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.speedment.runtime.config;
import com.speedment.runtime.config.mutator.DocumentMutator;
import com.speedment.runtime.config.mutator.ForeignKeyColumnMutator;
import com.speedment.runtime.config.trait.HasColumn;
import com.speedment.runtime.config.trait.HasId;
import com.speedment.runtime.config.trait.HasMainInterface;
import com.speedment.runtime.config.trait.HasMutator;
import com.speedment.runtime.config.trait.HasName;
import com.speedment.runtime.config.trait.HasOrdinalPosition;
import com.speedment.runtime.config.trait.HasParent;
import static com.speedment.runtime.config.util.DocumentUtil.newNoSuchElementExceptionFor;
import java.util.Optional;
/**
* A typed {@link Document} that represents the column referenced by a foreign
* key instance in the database. A {@code ForeignKeyColumn} is located inside a
* {@link ForeignKey}.
*
* @author Emil Forslund
* @since 2.0.0
*/
public interface ForeignKeyColumn extends
Document,
HasParent,
HasId,
HasName,
HasOrdinalPosition,
HasColumn,
HasMainInterface,
HasMutator> {
String FOREIGN_TABLE_NAME = "foreignTableName",
FOREIGN_COLUMN_NAME = "foreignColumnName",
FOREIGN_DATABASE_NAME = "foreignDatabaseName",
FOREIGN_SCHEMA_NAME = "foreignSchemaName";
/**
* Returns the name of the foreign database referenced by this column.
*
* @return the name of the foreign database
*/
default String getForeignDatabaseName() {
return getAsString(FOREIGN_DATABASE_NAME)
.orElseThrow(newNoSuchElementExceptionFor(this, FOREIGN_DATABASE_NAME));
}
/**
* Returns the name of the foreign schema(depends on DBMS type) referenced by this column.
*
* @return the name of the foreign schema
*/
default String getForeignSchemaName() {
return getAsString(FOREIGN_SCHEMA_NAME)
.orElseThrow(newNoSuchElementExceptionFor(this, FOREIGN_SCHEMA_NAME));
}
/**
* Returns the name of the foreign column referenced by this column.
*
* @return the name of the foreign column
*/
default String getForeignTableName() {
return getAsString(FOREIGN_TABLE_NAME)
.orElseThrow(newNoSuchElementExceptionFor(this, FOREIGN_TABLE_NAME));
}
/**
* Returns the name of the foreign table referenced by this column.
*
* @return the name of the foreign table
*/
default String getForeignColumnName() {
return getAsString(FOREIGN_COLUMN_NAME)
.orElseThrow(newNoSuchElementExceptionFor(this, FOREIGN_COLUMN_NAME));
}
/**
* A helper method for accessing the foreign {@link Table} referenced by
* this key.
*
* @return the foreign {@link Table} referenced by this
*/
default Optional findForeignTable() {
final Optional schema = ancestors()
.filter(Schema.class::isInstance)
.map(Schema.class::cast)
.findFirst();
return schema.flatMap(s -> s.tables()
.filter(tab -> tab.getId().equals(getForeignTableName()))
.findAny()
);
}
/**
* A helper method for accessing the foreign {@link Column} referenced by
* this key.
*
* @return the foreign {@link Column} referenced by this
*/
default Optional findForeignColumn() {
return findForeignTable()
.flatMap(table -> table.columns()
.filter(col -> col.getId().equals(getForeignColumnName()))
.findAny()
);
}
@Override
default Class mainInterface() {
return ForeignKeyColumn.class;
}
@Override
default ForeignKeyColumnMutator mutator() {
return DocumentMutator.of(this);
}
}