Package org.apache.derby.iapi.sql.dictionary

Examples of org.apache.derby.iapi.sql.dictionary.ConstraintDescriptorList.elementAt()

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    intArray[0] = columnPosition;

    for (int index = 0; index < cdl.size(); index++)
    {
      ConstraintDescriptor existingConstraint =
                                        cdl.elementAt(index);
      if (!(existingConstraint instanceof KeyConstraintDescriptor))
        continue;

      if (!existingConstraint.columnIntersects(intArray))
        continue;
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          refcdl = dd.getForeignKeys(existingConstraint.getUUID());
        
        if (refcdl.size() > 0)
        {
          throw StandardException.newException(
             SQLState.LANG_MODIFY_COLUMN_REFERENCED, name, refcdl.elementAt(0).getConstraintName());
        }
       
        // Make the statement dependent on the primary key constraint.
        getCompilerContext().createDependency(existingConstraint);
      }
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    intArray[0] = columnPosition;

    for (int index = 0; index < cdl.size(); index++)
    {
      ConstraintDescriptor existingConstraint =
                                        cdl.elementAt(index);
      if (!(existingConstraint instanceof KeyConstraintDescriptor))
        continue;

      if (!existingConstraint.columnIntersects(intArray))
        continue;
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          refcdl = dd.getForeignKeys(existingConstraint.getUUID());
        
        if (refcdl.size() > 0)
        {
          throw StandardException.newException(
             SQLState.LANG_MODIFY_COLUMN_REFERENCED, name, refcdl.elementAt(0).getConstraintName());
        }
       
        // Make the statement dependent on the primary key constraint.
        getCompilerContext().createDependency(existingConstraint);
      }
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            new ConstraintDescriptor[csdl_size];

    // let's go downwards, don't want to get messed up while removing
    for (int i = csdl_size - 1; i >= 0; i--)
    {
      ConstraintDescriptor cd = csdl.elementAt(i);
      int[] referencedColumns = cd.getReferencedColumns();
      int numRefCols = referencedColumns.length, j;
      boolean changed = false;
      for (j = 0; j < numRefCols; j++)
      {
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      {
        ConstraintDescriptorList fkcdl = dd.getForeignKeys(cd.getUUID());
        for (int j = 0; j < fkcdl.size(); j++)
        {
          ConstraintDescriptor fkcd =
                        (ConstraintDescriptor) fkcdl.elementAt(j);

          dm.invalidateFor(fkcd,
                  DependencyManager.DROP_CONSTRAINT,
                  lcc);
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    //truncate table is not allowed if there are any tables referencing it.
    //except if it is self referencing.
    ConstraintDescriptorList cdl = dd.getConstraintDescriptors(td);
    for(int index = 0; index < cdl.size(); index++)
    {
      ConstraintDescriptor cd = cdl.elementAt(index);
      if (cd instanceof ReferencedKeyConstraintDescriptor)
      {
        ReferencedKeyConstraintDescriptor rfcd = (ReferencedKeyConstraintDescriptor) cd;
        if(rfcd.hasNonSelfReferencingFK(ConstraintDescriptor.ENABLED))
        {
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        ** For each FK that references this key, drop
        ** it.
        */
        for(int inner = 0; inner < fkcdl.size(); inner++)
        {
          fkcd = (ConstraintDescriptor) fkcdl.elementAt(inner);
          dm.invalidateFor(fkcd, DependencyManager.DROP_CONSTRAINT, lcc);
          dropConstraint(fkcd, td, activation, lcc, true);
          activation.addWarning(
            StandardException.newWarning(SQLState.LANG_CONSTRAINT_DROPPED,
               fkcd.getConstraintName(),
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            new ConstraintDescriptor[csdl_size];

    // let's go downwards, don't want to get messed up while removing
    for (int i = csdl_size - 1; i >= 0; i--)
    {
      ConstraintDescriptor cd = csdl.elementAt(i);
      int[] referencedColumns = cd.getReferencedColumns();
      int numRefCols = referencedColumns.length, j;
      boolean changed = false;
      for (j = 0; j < numRefCols; j++)
      {
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      {
        ConstraintDescriptorList fkcdl = dd.getForeignKeys(cd.getUUID());
        for (int j = 0; j < fkcdl.size(); j++)
        {
          ConstraintDescriptor fkcd =
                        (ConstraintDescriptor) fkcdl.elementAt(j);

          dm.invalidateFor(fkcd,
                  DependencyManager.DROP_CONSTRAINT,
                  lcc);
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