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<div class="subTitle">org.apache.openjpa.jdbc.schema</div>
<h2 title="Class ForeignKey" class="title">Class ForeignKey</h2>
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<li><a href="../../../../../org/apache/openjpa/jdbc/schema/Constraint.html" title="class in org.apache.openjpa.jdbc.schema">org.apache.openjpa.jdbc.schema.Constraint</a></li>
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<li>org.apache.openjpa.jdbc.schema.ForeignKey</li>
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<pre>public class <span class="typeNameLabel">ForeignKey</span>
extends <a href="../../../../../org/apache/openjpa/jdbc/schema/Constraint.html" title="class in org.apache.openjpa.jdbc.schema">Constraint</a></pre>
<div class="block">Represents a database foreign key; may be a logical key with no
database representation. This class can also represent a partial key,
aligning with <a href="https://docs.oracle.com/javase/8/docs/api/java/sql/DatabaseMetaData.html?is-external=true" title="class or interface in java.sql"><code>DatabaseMetaData</code></a>.</div>
<dl>
<dt><span class="simpleTagLabel">Author:</span></dt>
<dd>Abe White</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../../serialized-form.html#org.apache.openjpa.jdbc.schema.ForeignKey">Serialized Form</a></dd>
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<th class="colFirst" scope="col">Modifier and Type</th>
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<td class="colFirst"><code>static class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.FKMapKey.html" title="class in org.apache.openjpa.jdbc.schema">ForeignKey.FKMapKey</a></span></code>&nbsp;</td>
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<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#ACTION_CASCADE">ACTION_CASCADE</a></span></code>
<div class="block">Cascade any modification of the joined primary key columns to
this table.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#ACTION_DEFAULT">ACTION_DEFAULT</a></span></code>
<div class="block">Set the local columns to their default values if the primary key
columns are modified.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#ACTION_NONE">ACTION_NONE</a></span></code>
<div class="block">Logical foreign key; links columns, but does not perform any action
when the joined primary key columns are modified.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#ACTION_NULL">ACTION_NULL</a></span></code>
<div class="block">Null the local columns if the joined primary key columns are modified.</div>
</td>
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<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#ACTION_RESTRICT">ACTION_RESTRICT</a></span></code>
<div class="block">Throw an exception if joined primary key columns are modified.</div>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#ForeignKey--">ForeignKey</a></span>()</code>
<div class="block">Default constructor.</div>
</td>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#ForeignKey-org.apache.openjpa.jdbc.identifier.DBIdentifier-org.apache.openjpa.jdbc.schema.Table-">ForeignKey</a></span>(<a href="../../../../../org/apache/openjpa/jdbc/identifier/DBIdentifier.html" title="class in org.apache.openjpa.jdbc.identifier">DBIdentifier</a>&nbsp;name,
<a href="../../../../../org/apache/openjpa/jdbc/schema/Table.html" title="class in org.apache.openjpa.jdbc.schema">Table</a>&nbsp;table)</code>&nbsp;</td>
</tr>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#ForeignKey-java.lang.String-org.apache.openjpa.jdbc.schema.Table-">ForeignKey</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;name,
<a href="../../../../../org/apache/openjpa/jdbc/schema/Table.html" title="class in org.apache.openjpa.jdbc.schema">Table</a>&nbsp;table)</code>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#addColumn-org.apache.openjpa.jdbc.schema.ForeignKey-">addColumn</a></span>(<a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html" title="class in org.apache.openjpa.jdbc.schema">ForeignKey</a>&nbsp;fk)</code>
<div class="block">Joins the column of a single column FK to this FK.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#columnsMatch-org.apache.openjpa.jdbc.schema.Column:A-org.apache.openjpa.jdbc.schema.Column:A-">columnsMatch</a></span>(<a href="../../../../../org/apache/openjpa/jdbc/schema/Column.html" title="class in org.apache.openjpa.jdbc.schema">Column</a>[]&nbsp;fkCols,
<a href="../../../../../org/apache/openjpa/jdbc/schema/Column.html" title="class in org.apache.openjpa.jdbc.schema">Column</a>[]&nbsp;fkPKCols)</code>
<div class="block">Return true if the given local and foreign columns match those
on this key.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#containsColumn-org.apache.openjpa.jdbc.schema.Column-">containsColumn</a></span>(<a href="../../../../../org/apache/openjpa/jdbc/schema/Column.html" title="class in org.apache.openjpa.jdbc.schema">Column</a>&nbsp;col)</code>
<div class="block">Return true if the fk includes the given local column.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#containsConstantColumn-org.apache.openjpa.jdbc.schema.Column-">containsConstantColumn</a></span>(<a href="../../../../../org/apache/openjpa/jdbc/schema/Column.html" title="class in org.apache.openjpa.jdbc.schema">Column</a>&nbsp;col)</code>
<div class="block">Return true if the fk includes the given local column.</div>
</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#containsConstantPrimaryKeyColumn-org.apache.openjpa.jdbc.schema.Column-">containsConstantPrimaryKeyColumn</a></span>(<a href="../../../../../org/apache/openjpa/jdbc/schema/Column.html" title="class in org.apache.openjpa.jdbc.schema">Column</a>&nbsp;col)</code>
<div class="block">Return true if the fk includes the given primary key column.</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#containsPrimaryKeyColumn-org.apache.openjpa.jdbc.schema.Column-">containsPrimaryKeyColumn</a></span>(<a href="../../../../../org/apache/openjpa/jdbc/schema/Column.html" title="class in org.apache.openjpa.jdbc.schema">Column</a>&nbsp;col)</code>
<div class="block">Return true if the fk includes the given primary key column.</div>
</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#deref--">deref</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#derefColumns--">derefColumns</a></span>()</code>
<div class="block">Deref all columns in this key.</div>
</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#equalsForeignKey-org.apache.openjpa.jdbc.schema.ForeignKey-">equalsForeignKey</a></span>(<a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html" title="class in org.apache.openjpa.jdbc.schema">ForeignKey</a>&nbsp;fk)</code>
<div class="block">Foreign keys are equal if the satisfy the equality constraints of
<a href="../../../../../org/apache/openjpa/jdbc/schema/Constraint.html" title="class in org.apache.openjpa.jdbc.schema"><code>Constraint</code></a> and they have the same local and primary key
columns and action.</div>
</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#getAction-java.lang.String-">getAction</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;name)</code>
<div class="block">Return the foreign key action constant for the given action name.</div>
</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#getActionName-int-">getActionName</a></span>(int&nbsp;action)</code>
<div class="block">Return the foreign key action name for the given action constant.</div>
</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/apache/openjpa/jdbc/schema/Column.html" title="class in org.apache.openjpa.jdbc.schema">Column</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#getColumn-org.apache.openjpa.jdbc.schema.Column-">getColumn</a></span>(<a href="../../../../../org/apache/openjpa/jdbc/schema/Column.html" title="class in org.apache.openjpa.jdbc.schema">Column</a>&nbsp;pk)</code>
<div class="block">Return the local column joined to the given primary key column.</div>
</td>
</tr>
<tr id="i12" class="altColor">
<td class="colFirst"><code><a href="../../../../../org/apache/openjpa/jdbc/schema/Column.html" title="class in org.apache.openjpa.jdbc.schema">Column</a>[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#getColumns--">getColumns</a></span>()</code>
<div class="block">Return the local columns in the foreign key local table order.</div>
</td>
</tr>
<tr id="i13" class="rowColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#getConstant-org.apache.openjpa.jdbc.schema.Column-">getConstant</a></span>(<a href="../../../../../org/apache/openjpa/jdbc/schema/Column.html" title="class in org.apache.openjpa.jdbc.schema">Column</a>&nbsp;local)</code>
<div class="block">Return the constant value assigned to the given local column.</div>
</td>
</tr>
<tr id="i14" class="altColor">
<td class="colFirst"><code><a href="../../../../../org/apache/openjpa/jdbc/schema/Column.html" title="class in org.apache.openjpa.jdbc.schema">Column</a>[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#getConstantColumns--">getConstantColumns</a></span>()</code>
<div class="block">Return the local columns that we link to using constant values.</div>
</td>
</tr>
<tr id="i15" class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/apache/openjpa/jdbc/schema/Column.html" title="class in org.apache.openjpa.jdbc.schema">Column</a>[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#getConstantPrimaryKeyColumns--">getConstantPrimaryKeyColumns</a></span>()</code>
<div class="block">Return the primary key columns that we link to using constant values.</div>
</td>
</tr>
<tr id="i16" class="altColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#getConstants--">getConstants</a></span>()</code>
<div class="block">Return the constant values assigned to the local columns
returned by <a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#getConstantColumns--"><code>getConstantColumns()</code></a>.</div>
</td>
</tr>
<tr id="i17" class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#getDeleteAction--">getDeleteAction</a></span>()</code>
<div class="block">Return the delete action for the key.</div>
</td>
</tr>
<tr id="i18" class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#getIndex--">getIndex</a></span>()</code>
<div class="block">Return the foreign key's 0-based index in the owning table.</div>
</td>
</tr>
<tr id="i19" class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#getKeySequence--">getKeySequence</a></span>()</code>
<div class="block">The sequence of this join in the foreign key.</div>
</td>
</tr>
<tr id="i20" class="altColor">
<td class="colFirst"><code><a href="../../../../../org/apache/openjpa/jdbc/schema/Column.html" title="class in org.apache.openjpa.jdbc.schema">Column</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#getPrimaryKeyColumn-org.apache.openjpa.jdbc.schema.Column-">getPrimaryKeyColumn</a></span>(<a href="../../../../../org/apache/openjpa/jdbc/schema/Column.html" title="class in org.apache.openjpa.jdbc.schema">Column</a>&nbsp;local)</code>
<div class="block">Return the primary key column joined to the given local column.</div>
</td>
</tr>
<tr id="i21" class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/apache/openjpa/jdbc/identifier/DBIdentifier.html" title="class in org.apache.openjpa.jdbc.identifier">DBIdentifier</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#getPrimaryKeyColumnIdentifier--">getPrimaryKeyColumnIdentifier</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i22" class="altColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#getPrimaryKeyColumnName--">getPrimaryKeyColumnName</a></span>()</code>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;&nbsp;</div>
</td>
</tr>
<tr id="i23" class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/apache/openjpa/jdbc/schema/Column.html" title="class in org.apache.openjpa.jdbc.schema">Column</a>[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#getPrimaryKeyColumns--">getPrimaryKeyColumns</a></span>()</code>
<div class="block">Return the foreign columns in the foreign key, in join-order with
the result of <a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#getColumns--"><code>getColumns()</code></a>.</div>
</td>
</tr>
<tr id="i24" class="altColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#getPrimaryKeyConstant-org.apache.openjpa.jdbc.schema.Column-">getPrimaryKeyConstant</a></span>(<a href="../../../../../org/apache/openjpa/jdbc/schema/Column.html" title="class in org.apache.openjpa.jdbc.schema">Column</a>&nbsp;pk)</code>
<div class="block">Return the constant value assigned to the given primary key column.</div>
</td>
</tr>
<tr id="i25" class="rowColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#getPrimaryKeyConstants--">getPrimaryKeyConstants</a></span>()</code>
<div class="block">Return the constant values assigned to the primary key columns
returned by <a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#getConstantPrimaryKeyColumns--"><code>getConstantPrimaryKeyColumns()</code></a>.</div>
</td>
</tr>
<tr id="i26" class="altColor">
<td class="colFirst"><code><a href="../../../../../org/apache/openjpa/jdbc/identifier/DBIdentifier.html" title="class in org.apache.openjpa.jdbc.identifier">DBIdentifier</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#getPrimaryKeySchemaIdentifier--">getPrimaryKeySchemaIdentifier</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i27" class="rowColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#getPrimaryKeySchemaName--">getPrimaryKeySchemaName</a></span>()</code>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;&nbsp;</div>
</td>
</tr>
<tr id="i28" class="altColor">
<td class="colFirst"><code><a href="../../../../../org/apache/openjpa/jdbc/schema/Table.html" title="class in org.apache.openjpa.jdbc.schema">Table</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#getPrimaryKeyTable--">getPrimaryKeyTable</a></span>()</code>
<div class="block">Returns the table this foreign key is linking to, if it is known yet.</div>
</td>
</tr>
<tr id="i29" class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/apache/openjpa/jdbc/identifier/DBIdentifier.html" title="class in org.apache.openjpa.jdbc.identifier">DBIdentifier</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#getPrimaryKeyTableIdentifier--">getPrimaryKeyTableIdentifier</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i30" class="altColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#getPrimaryKeyTableName--">getPrimaryKeyTableName</a></span>()</code>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;&nbsp;</div>
</td>
</tr>
<tr id="i31" class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#getRefCount--">getRefCount</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i32" class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#getUpdateAction--">getUpdateAction</a></span>()</code>
<div class="block">Return the update action for the key.</div>
</td>
</tr>
<tr id="i33" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#hasNotNullColumns--">hasNotNullColumns</a></span>()</code>
<div class="block">Checks for non-nullable local columns.</div>
</td>
</tr>
<tr id="i34" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#isLogical--">isLogical</a></span>()</code>
<div class="block">Return whether this constraint is a logical constraint only; i.e.</div>
</td>
</tr>
<tr id="i35" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#isPrimaryKeyAutoAssigned--">isPrimaryKeyAutoAssigned</a></span>()</code>
<div class="block">Whether the primary key columns of this key are auto-incrementing, or
whether they themselves are members of a foreign key who's primary key
is auto-incrementing (recursing to arbitrary depth).</div>
</td>
</tr>
<tr id="i36" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#join-org.apache.openjpa.jdbc.schema.Column-org.apache.openjpa.jdbc.schema.Column-">join</a></span>(<a href="../../../../../org/apache/openjpa/jdbc/schema/Column.html" title="class in org.apache.openjpa.jdbc.schema">Column</a>&nbsp;local,
<a href="../../../../../org/apache/openjpa/jdbc/schema/Column.html" title="class in org.apache.openjpa.jdbc.schema">Column</a>&nbsp;toPK)</code>
<div class="block">Join a local column to a primary key column of another table.</div>
</td>
</tr>
<tr id="i37" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#joinConstant-org.apache.openjpa.jdbc.schema.Column-java.lang.Object-">joinConstant</a></span>(<a href="../../../../../org/apache/openjpa/jdbc/schema/Column.html" title="class in org.apache.openjpa.jdbc.schema">Column</a>&nbsp;col,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;val)</code>
<div class="block">Join a constant value to a local column of this table.</div>
</td>
</tr>
<tr id="i38" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#joinConstant-java.lang.Object-org.apache.openjpa.jdbc.schema.Column-">joinConstant</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;val,
<a href="../../../../../org/apache/openjpa/jdbc/schema/Column.html" title="class in org.apache.openjpa.jdbc.schema">Column</a>&nbsp;toPK)</code>
<div class="block">Join a constant value to a primary key column of another table.</div>
</td>
</tr>
<tr id="i39" class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/apache/openjpa/jdbc/identifier/DBIdentifier.html" title="class in org.apache.openjpa.jdbc.identifier">DBIdentifier</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#loadIdentifierFromDB-org.apache.openjpa.jdbc.sql.DBDictionary-java.sql.Connection-">loadIdentifierFromDB</a></span>(<a href="../../../../../org/apache/openjpa/jdbc/sql/DBDictionary.html" title="class in org.apache.openjpa.jdbc.sql">DBDictionary</a>&nbsp;dbdict,
<a href="https://docs.oracle.com/javase/8/docs/api/java/sql/Connection.html?is-external=true" title="class or interface in java.sql">Connection</a>&nbsp;conn)</code>&nbsp;</td>
</tr>
<tr id="i40" class="altColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#loadNameFromDB-org.apache.openjpa.jdbc.sql.DBDictionary-java.sql.Connection-">loadNameFromDB</a></span>(<a href="../../../../../org/apache/openjpa/jdbc/sql/DBDictionary.html" title="class in org.apache.openjpa.jdbc.sql">DBDictionary</a>&nbsp;dbdict,
<a href="https://docs.oracle.com/javase/8/docs/api/java/sql/Connection.html?is-external=true" title="class or interface in java.sql">Connection</a>&nbsp;conn)</code>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;&nbsp;</div>
</td>
</tr>
<tr id="i41" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#ref--">ref</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i42" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#refColumns--">refColumns</a></span>()</code>
<div class="block">Ref all columns in this key.</div>
</td>
</tr>
<tr id="i43" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#removeJoin-org.apache.openjpa.jdbc.schema.Column-">removeJoin</a></span>(<a href="../../../../../org/apache/openjpa/jdbc/schema/Column.html" title="class in org.apache.openjpa.jdbc.schema">Column</a>&nbsp;col)</code>
<div class="block">Remove any joins inolving the given column.</div>
</td>
</tr>
<tr id="i44" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#setConstantJoins-org.apache.openjpa.jdbc.schema.Column:A-java.lang.Object:A-">setConstantJoins</a></span>(<a href="../../../../../org/apache/openjpa/jdbc/schema/Column.html" title="class in org.apache.openjpa.jdbc.schema">Column</a>[]&nbsp;cols,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>[]&nbsp;consts)</code>
<div class="block">Set the foreign key's constant joins.</div>
</td>
</tr>
<tr id="i45" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#setConstantJoins-java.lang.Object:A-org.apache.openjpa.jdbc.schema.Column:A-">setConstantJoins</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>[]&nbsp;consts,
<a href="../../../../../org/apache/openjpa/jdbc/schema/Column.html" title="class in org.apache.openjpa.jdbc.schema">Column</a>[]&nbsp;pkCols)</code>
<div class="block">Set the foreign key's constant joins.</div>
</td>
</tr>
<tr id="i46" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#setDeleteAction-int-">setDeleteAction</a></span>(int&nbsp;action)</code>
<div class="block">Set the delete action for the key.</div>
</td>
</tr>
<tr id="i47" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#setJoins-org.apache.openjpa.jdbc.schema.Column:A-org.apache.openjpa.jdbc.schema.Column:A-">setJoins</a></span>(<a href="../../../../../org/apache/openjpa/jdbc/schema/Column.html" title="class in org.apache.openjpa.jdbc.schema">Column</a>[]&nbsp;cols,
<a href="../../../../../org/apache/openjpa/jdbc/schema/Column.html" title="class in org.apache.openjpa.jdbc.schema">Column</a>[]&nbsp;pkCols)</code>
<div class="block">Set the foreign key's joins.</div>
</td>
</tr>
<tr id="i48" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#setKeySequence-int-">setKeySequence</a></span>(int&nbsp;seq)</code>
<div class="block">The sequence of this join in the foreign key.</div>
</td>
</tr>
<tr id="i49" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#setPrimaryKeyColumnIdentifier-org.apache.openjpa.jdbc.identifier.DBIdentifier-">setPrimaryKeyColumnIdentifier</a></span>(<a href="../../../../../org/apache/openjpa/jdbc/identifier/DBIdentifier.html" title="class in org.apache.openjpa.jdbc.identifier">DBIdentifier</a>&nbsp;pkColumnName)</code>&nbsp;</td>
</tr>
<tr id="i50" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#setPrimaryKeyColumnName-java.lang.String-">setPrimaryKeyColumnName</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;pkColumnName)</code>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;&nbsp;</div>
</td>
</tr>
<tr id="i51" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#setPrimaryKeySchemaIdentifier-org.apache.openjpa.jdbc.identifier.DBIdentifier-">setPrimaryKeySchemaIdentifier</a></span>(<a href="../../../../../org/apache/openjpa/jdbc/identifier/DBIdentifier.html" title="class in org.apache.openjpa.jdbc.identifier">DBIdentifier</a>&nbsp;pkSchemaName)</code>&nbsp;</td>
</tr>
<tr id="i52" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#setPrimaryKeySchemaName-java.lang.String-">setPrimaryKeySchemaName</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;pkSchemaName)</code>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;&nbsp;</div>
</td>
</tr>
<tr id="i53" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#setPrimaryKeyTableIdentifier-org.apache.openjpa.jdbc.identifier.DBIdentifier-">setPrimaryKeyTableIdentifier</a></span>(<a href="../../../../../org/apache/openjpa/jdbc/identifier/DBIdentifier.html" title="class in org.apache.openjpa.jdbc.identifier">DBIdentifier</a>&nbsp;pkTableName)</code>&nbsp;</td>
</tr>
<tr id="i54" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#setPrimaryKeyTableName-java.lang.String-">setPrimaryKeyTableName</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;pkTableName)</code>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;&nbsp;</div>
</td>
</tr>
<tr id="i55" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html#setUpdateAction-int-">setUpdateAction</a></span>(int&nbsp;action)</code>
<div class="block">Set the update action for the key.</div>
</td>
</tr>
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<h3>Methods inherited from class&nbsp;org.apache.openjpa.jdbc.schema.<a href="../../../../../org/apache/openjpa/jdbc/schema/Constraint.html" title="class in org.apache.openjpa.jdbc.schema">Constraint</a></h3>
<code><a href="../../../../../org/apache/openjpa/jdbc/schema/Constraint.html#getColumnIdentifier--">getColumnIdentifier</a>, <a href="../../../../../org/apache/openjpa/jdbc/schema/Constraint.html#getColumnName--">getColumnName</a>, <a href="../../../../../org/apache/openjpa/jdbc/schema/Constraint.html#getFullIdentifier--">getFullIdentifier</a>, <a href="../../../../../org/apache/openjpa/jdbc/schema/Constraint.html#getFullName--">getFullName</a>, <a href="../../../../../org/apache/openjpa/jdbc/schema/Constraint.html#getIdentifier--">getIdentifier</a>, <a href="../../../../../org/apache/openjpa/jdbc/schema/Constraint.html#getName--">getName</a>, <a href="../../../../../org/apache/openjpa/jdbc/schema/Constraint.html#getQualifiedPath--">getQualifiedPath</a>, <a href="../../../../../org/apache/openjpa/jdbc/schema/Constraint.html#getSchemaIdentifier--">getSchemaIdentifier</a>, <a href="../../../../../org/apache/openjpa/jdbc/schema/Constraint.html#getSchemaName--">getSchemaName</a>, <a href="../../../../../org/apache/openjpa/jdbc/schema/Constraint.html#getTable--">getTable</a>, <a href="../../../../../org/apache/openjpa/jdbc/schema/Constraint.html#getTableIdentifier--">getTableIdentifier</a>, <a href="../../../../../org/apache/openjpa/jdbc/schema/Constraint.html#getTableName--">getTableName</a>, <a href="../../../../../org/apache/openjpa/jdbc/schema/Constraint.html#isDeferred--">isDeferred</a>, <a href="../../../../../org/apache/openjpa/jdbc/schema/Constraint.html#setColumnIdentifier-org.apache.openjpa.jdbc.identifier.DBIdentifier-">setColumnIdentifier</a>, <a href="../../../../../org/apache/openjpa/jdbc/schema/Constraint.html#setColumnName-java.lang.String-">setColumnName</a>, <a href="../../../../../org/apache/openjpa/jdbc/schema/Constraint.html#setDeferred-boolean-">setDeferred</a>, <a href="../../../../../org/apache/openjpa/jdbc/schema/Constraint.html#setIdentifier-org.apache.openjpa.jdbc.identifier.DBIdentifier-">setIdentifier</a>, <a href="../../../../../org/apache/openjpa/jdbc/schema/Constraint.html#setName-java.lang.String-">setName</a>, <a href="../../../../../org/apache/openjpa/jdbc/schema/Constraint.html#setSchemaIdentifier-org.apache.openjpa.jdbc.identifier.DBIdentifier-">setSchemaIdentifier</a>, <a href="../../../../../org/apache/openjpa/jdbc/schema/Constraint.html#setSchemaName-java.lang.String-">setSchemaName</a>, <a href="../../../../../org/apache/openjpa/jdbc/schema/Constraint.html#setTableIdentifier-org.apache.openjpa.jdbc.identifier.DBIdentifier-">setTableIdentifier</a>, <a href="../../../../../org/apache/openjpa/jdbc/schema/Constraint.html#setTableName-java.lang.String-">setTableName</a>, <a href="../../../../../org/apache/openjpa/jdbc/schema/Constraint.html#toString--">toString</a></code></li>
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<h3>Methods inherited from class&nbsp;java.lang.<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3>
<code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li>
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<pre>public static final&nbsp;int ACTION_NONE</pre>
<div class="block">Logical foreign key; links columns, but does not perform any action
when the joined primary key columns are modified.</div>
<dl>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../../constant-values.html#org.apache.openjpa.jdbc.schema.ForeignKey.ACTION_NONE">Constant Field Values</a></dd>
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<pre>public static final&nbsp;int ACTION_RESTRICT</pre>
<div class="block">Throw an exception if joined primary key columns are modified.</div>
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<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../../constant-values.html#org.apache.openjpa.jdbc.schema.ForeignKey.ACTION_RESTRICT">Constant Field Values</a></dd>
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<pre>public static final&nbsp;int ACTION_CASCADE</pre>
<div class="block">Cascade any modification of the joined primary key columns to
this table. If the joined primary key row is deleted, the row in this
table will also be deleted.</div>
<dl>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../../constant-values.html#org.apache.openjpa.jdbc.schema.ForeignKey.ACTION_CASCADE">Constant Field Values</a></dd>
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<pre>public&nbsp;void&nbsp;setConstantJoins(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>[]&nbsp;consts,
<a href="../../../../../org/apache/openjpa/jdbc/schema/Column.html" title="class in org.apache.openjpa.jdbc.schema">Column</a>[]&nbsp;pkCols)</pre>
<div class="block">Set the foreign key's constant joins.</div>
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<pre>public&nbsp;void&nbsp;setConstantJoins(<a href="../../../../../org/apache/openjpa/jdbc/schema/Column.html" title="class in org.apache.openjpa.jdbc.schema">Column</a>[]&nbsp;cols,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>[]&nbsp;consts)</pre>
<div class="block">Set the foreign key's constant joins.</div>
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<pre>public&nbsp;void&nbsp;join(<a href="../../../../../org/apache/openjpa/jdbc/schema/Column.html" title="class in org.apache.openjpa.jdbc.schema">Column</a>&nbsp;local,
<a href="../../../../../org/apache/openjpa/jdbc/schema/Column.html" title="class in org.apache.openjpa.jdbc.schema">Column</a>&nbsp;toPK)</pre>
<div class="block">Join a local column to a primary key column of another table.</div>
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<pre>public&nbsp;void&nbsp;joinConstant(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;val,
<a href="../../../../../org/apache/openjpa/jdbc/schema/Column.html" title="class in org.apache.openjpa.jdbc.schema">Column</a>&nbsp;toPK)</pre>
<div class="block">Join a constant value to a primary key column of another table. The
constant must be either a string or a number.</div>
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<pre>public&nbsp;void&nbsp;joinConstant(<a href="../../../../../org/apache/openjpa/jdbc/schema/Column.html" title="class in org.apache.openjpa.jdbc.schema">Column</a>&nbsp;col,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;val)</pre>
<div class="block">Join a constant value to a local column of this table. The
constant must be either a string or a number.</div>
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<pre>public&nbsp;boolean&nbsp;removeJoin(<a href="../../../../../org/apache/openjpa/jdbc/schema/Column.html" title="class in org.apache.openjpa.jdbc.schema">Column</a>&nbsp;col)</pre>
<div class="block">Remove any joins inolving the given column.</div>
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<dt><span class="returnLabel">Returns:</span></dt>
<dd>true if the join was removed, false if not part of the key</dd>
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<pre>public&nbsp;<a href="../../../../../org/apache/openjpa/jdbc/schema/Table.html" title="class in org.apache.openjpa.jdbc.schema">Table</a>&nbsp;getPrimaryKeyTable()</pre>
<div class="block">Returns the table this foreign key is linking to, if it is known yet.</div>
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<pre>public&nbsp;void&nbsp;refColumns()</pre>
<div class="block">Ref all columns in this key.</div>
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<pre>public&nbsp;void&nbsp;derefColumns()</pre>
<div class="block">Deref all columns in this key.</div>
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<div class="block">Foreign keys are equal if the satisfy the equality constraints of
<a href="../../../../../org/apache/openjpa/jdbc/schema/Constraint.html" title="class in org.apache.openjpa.jdbc.schema"><code>Constraint</code></a> and they have the same local and primary key
columns and action.</div>
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<a href="../../../../../org/apache/openjpa/jdbc/schema/Column.html" title="class in org.apache.openjpa.jdbc.schema">Column</a>[]&nbsp;fkPKCols)</pre>
<div class="block">Return true if the given local and foreign columns match those
on this key. This can be used to find foreign keys given only
column linking information.</div>
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<pre>public&nbsp;boolean&nbsp;hasNotNullColumns()</pre>
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<pre><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Deprecated.html?is-external=true" title="class or interface in java.lang">@Deprecated</a>
public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;loadNameFromDB(<a href="../../../../../org/apache/openjpa/jdbc/sql/DBDictionary.html" title="class in org.apache.openjpa.jdbc.sql">DBDictionary</a>&nbsp;dbdict,
<a href="https://docs.oracle.com/javase/8/docs/api/java/sql/Connection.html?is-external=true" title="class or interface in java.sql">Connection</a>&nbsp;conn)</pre>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
<div class="block">Return the name of the foreignkey constraint as defined in the database.</div>
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<div class="block">Joins the column of a single column FK to this FK.</div>
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<pre>public&nbsp;void&nbsp;deref()</pre>
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