[dali-dev] provisional API additions in M7 - bug 342171

[Karen Butzke <karen.moore@xxxxxxxxxx>]

To fix bug 342171 I am making a few provisional API changes, adding the following methods to context model interfaces.

org.eclipse.jpt.jpa.core.context.Entity
PrimaryKeyJoinColumn getSpecifiedPrimaryKeyJoinColumn(int index);
void convertDefaultPrimaryKeyJoinColumnsToSpecified();
void clearSpecifiedPrimaryKeyJoinColumns();

org.eclipse.jpt.jpa.core.context.JoinColumnRelationshipStrategy
void convertDefaultJoinColumnsToSpecified();
void clearSpecifiedJoinColumns();

org.eclipse.jpt.jpa.core.context.SecondaryTable
PrimaryKeyJoinColumn getSpecifiedPrimaryKeyJoinColumn(int index);
void convertDefaultPrimaryKeyJoinColumnsToSpecified();
void clearSpecifiedPrimaryKeyJoinColumns();

org.eclipse.jpt.jpa.core.context.ReferenceTable
void clearSpecifiedJoinColumns();
The other related provisional API already existed including JoinTable.clearSpecifiedInverseJoinColumns() etc