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Diffstat (limited to 'jpa/plugins/org.eclipse.jpt.db/src/org/eclipse/jpt/db/ForeignKey.java')
| -rw-r--r-- | jpa/plugins/org.eclipse.jpt.db/src/org/eclipse/jpt/db/ForeignKey.java | 157 |
1 files changed, 0 insertions, 157 deletions
diff --git a/jpa/plugins/org.eclipse.jpt.db/src/org/eclipse/jpt/db/ForeignKey.java b/jpa/plugins/org.eclipse.jpt.db/src/org/eclipse/jpt/db/ForeignKey.java deleted file mode 100644 index 5d9dae3ab0..0000000000 --- a/jpa/plugins/org.eclipse.jpt.db/src/org/eclipse/jpt/db/ForeignKey.java +++ /dev/null @@ -1,157 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2008, 2009 Oracle. All rights reserved. - * This program and the accompanying materials are made available under the - * terms of the Eclipse Public License v1.0, which accompanies this distribution - * and is available at http://www.eclipse.org/legal/epl-v10.html. - * - * Contributors: - * Oracle - initial API and implementation - ******************************************************************************/ -package org.eclipse.jpt.db; - -import java.util.Comparator; - -import com.ibm.icu.text.Collator; - -/** - * Database foreign key - * <p> - * Provisional API: This interface is part of an interim API that is still - * under development and expected to change significantly before reaching - * stability. It is available at this early stage to solicit feedback from - * pioneering adopters on the understanding that any code that uses this API - * will almost certainly be broken (repeatedly) as the API evolves. - */ -public interface ForeignKey extends DatabaseObject { - - // ********** tables ********** - - /** - * Return the foreign key's "base" table. - */ - Table getBaseTable(); - - /** - * Return the foreign key's "referenced" table. - */ - Table getReferencedTable(); - - - // ********** column pairs ********** - - /** - * Return the foreign key's column pairs. - */ - Iterable<ColumnPair> getColumnPairs(); - - /** - * Return the size of the foreign key's column pairs. - */ - int getColumnPairsSize(); - - /** - * Return the foreign key's single column pair. Throw an - * {@link IllegalStateException} if the foreign key has more than one column pair. - */ - ColumnPair getColumnPair(); - - /** - * Return the foreign key's "base" columns. - */ - Iterable<Column> getBaseColumns(); - - /** - * Return the foreign key's "base" columns that are not part of the base - * table's primary key. (The non-primary key base columns are not used to - * generate basic attributes during entity generation.) - */ - Iterable<Column> getNonPrimaryKeyBaseColumns(); - - /** - * Return the foreign key's "referenced" columns. - */ - Iterable<Column> getReferencedColumns(); - - /** - * Return whether the foreign key references the primary key of the - * "referenced" table and that primary key has only a single column. - * This can be used when determining JPA defaults. - */ - boolean referencesSingleColumnPrimaryKey(); - - - // ********** JPA support ********** - - /** - * Return an appropriate name for an attribute that holds the entity - * mapped to the foreign key's "referenced" table. - */ - String getAttributeName(); - - /** - * If the name of the "base" column adheres to the JPA spec for a - * default mapping (i.e. it ends with an underscore followed by the name - * of the "referenced" column, and the "referenced" column is the single - * primary key column of the "referenced" table), return the corresponding - * default attribute name:<pre> - * ForeignKey(EMP.CUBICLE_ID => CUBICLE.ID) => "CUBICLE" - * </pre> - * Return a <code>null</code> if it does not adhere to the JPA spec:<pre> - * ForeignKey(EMP.CUBICLE_ID => CUBICLE.CUBICLE_ID) => null - * ForeignKey(EMP.CUBICLE => CUBICLE.ID) => null - * </pre> - */ - String getDefaultAttributeName(); - - /** - * Given the name of an attribute (field or property) that is mapped to the - * foreign key, - * build and return a string to be used as the value for the attribute's - * <code>@javax.persistence.JoinColumn</code> annotation's <code>name</code> element. - * Return <code>null</code> if the attribute - * maps to the join column by default. - * <p> - * Precondition: The foreign key consists of a single column pair whose - * referenced column is the single-column primary key of the foreign - * key's referenced table. - * <p> - * This is used by the old entity generation code to determine whether - * a generated annotation must explicitly identify the join column - * or the calculated default adequately identifies the join column - * (taking into consideration case-sensitivity and special characters). - */ - String getJoinColumnAnnotationIdentifier(String attributeName); - - // ********** column pair interface ********** - - /** - * Pair up the foreign key's column pairs, matching each "base" column with - * the appropriate "referenced" column. - * @see #columnPairs() - */ - interface ColumnPair { - - /** - * Return the column pair's "base" column. - */ - Column getBaseColumn(); - - /** - * Return the column pair's "referenced" column. - */ - Column getReferencedColumn(); - - Comparator<ColumnPair> BASE_COLUMN_COMPARATOR = - new Comparator<ColumnPair>() { - public int compare(ColumnPair cp1, ColumnPair cp2) { - return Collator.getInstance().compare(cp1.getBaseColumn().getName(), cp2.getBaseColumn().getName()); - } - @Override - public String toString() { - return "ForeignKey.ColumnPair.BASE_COLUMN_COMPARATOR"; //$NON-NLS-1$ - } - }; - - } - -} |