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

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

Class org.apache.derby.iapi.sql.dictionary.ConstraintDescriptorList

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

org.apache.derby.iapi.sql.dictionary.ConstraintDescriptorList.elementAt()
Return the nth (0-based) element in the list. @param n Which element to return. @return The nth element in the list.

        fkcdl = refcd.getForeignKeyConstraints(ReferencedKeyConstraintDescriptor.ALL);


        int fkcdlSize = fkcdl.size();
        for (int inner = 0; inner < fkcdlSize; inner++)
        {
          fkcd = (ForeignKeyConstraintDescriptor) fkcdl.elementAt(inner);  
          if (enable && !fkcd.isEnabled())
          {
            dm.invalidateFor(fkcd.getTableDescriptor(), 
                  DependencyManager.SET_CONSTRAINTS_ENABLE, lcc);
            validateFKConstraint(fkcd, dd, tc, lcc.getContextManager());

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      ** explicit check constraint xxxx failed error message).
      */
      int cdlSize = cdl.size();
      for (int index = 0; index < cdlSize; index++)
      {
        cd = (CheckConstraintDescriptor) cdl.elementAt(index);
        if (text == null)
        {
          text = new StringBuffer("(").append(cd.getConstraintText()).append(") ");
          constraintNames = new StringBuffer(cd.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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    //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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    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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    ConstraintDescriptor constraintDescriptor;


    // go through all the constraints defined on the table
    for (int index = 0; index < size; index++)
    {
      constraintDescriptor = constraintDescriptorList.elementAt(index);
      // if it is a check constraint, error
      if (constraintDescriptor.getConstraintType() == DataDictionary.CHECK_CONSTRAINT)
      {
        throw StandardException.newException(
            SQLState.LANG_PROVIDER_HAS_DEPENDENT_OBJECT,

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    int  checkConstraintCDLSize;


    // go through all the constraints defined on the table
    for (int index = 0; index < size; index++)
    {
      constraintDescriptor = constraintDescriptorList.elementAt(index);
      // if it is a check constraint, verify that column being
      // renamed is not used in it's sql
      if (constraintDescriptor.getConstraintType() == DataDictionary.CHECK_CONSTRAINT)
      {
        checkConstraintCDL = constraintDescriptor.getColumnDescriptors();

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    ValueNode          checkTree = null;


    // Get the text of all the check constraints
    for (int index = 0; index < ccCDLSize; index++)
    {
      ConstraintDescriptor cd = ccCDL.elementAt(index);


      String constraintText = cd.getConstraintText();


      // Get the query tree for this constraint
      ValueNode oneConstraint =

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