| 1 | /* |
| 2 | |
| 3 | Derby - Class org.apache.derby.iapi.sql.dictionary.GenericDescriptorList |
| 4 | |
| 5 | Copyright 1999, 2004 The Apache Software Foundation or its licensors, as applicable. |
| 6 | |
| 7 | Licensed under the Apache License, Version 2.0 (the "License"); |
| 8 | you may not use this file except in compliance with the License. |
| 9 | You may obtain a copy of the License at |
| 10 | |
| 11 | http://www.apache.org/licenses/LICENSE-2.0 |
| 12 | |
| 13 | Unless required by applicable law or agreed to in writing, software |
| 14 | distributed under the License is distributed on an "AS IS" BASIS, |
| 15 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 16 | See the License for the specific language governing permissions and |
| 17 | limitations under the License. |
| 18 | |
| 19 | */ |
| 20 | |
| 21 | package org.apache.derby.iapi.sql.dictionary; |
| 22 | |
| 23 | import org.apache.derby.iapi.error.StandardException; |
| 24 | import org.apache.derby.iapi.services.sanity.SanityManager; |
| 25 | |
| 26 | import org.apache.derby.catalog.UUID; |
| 27 | |
| 28 | import org.apache.derby.iapi.sql.dictionary.DataDictionary; |
| 29 | import org.apache.derby.iapi.sql.dictionary.UniqueTupleDescriptor; |
| 30 | import org.apache.derby.iapi.sql.dictionary.SchemaDescriptor; |
| 31 | |
| 32 | import org.apache.derby.iapi.error.StandardException; |
| 33 | import org.apache.derby.iapi.services.sanity.SanityManager; |
| 34 | |
| 35 | import org.apache.derby.catalog.UUID; |
| 36 | |
| 37 | import java.util.ArrayList; |
| 38 | import java.util.Iterator; |
| 39 | |
| 40 | public class GenericDescriptorList extends ArrayList |
| 41 | { |
| 42 | private boolean scanned; |
| 43 | |
| 44 | /** |
| 45 | * Mark whether or not the underlying system table has |
| 46 | * been scanned. (If a table does not have any |
| 47 | * constraints then the size of its CDL will always |
| 48 | * be 0. We used these get/set methods to determine |
| 49 | * when we need to scan the table. |
| 50 | * |
| 51 | * @param scanned Whether or not the underlying system table has been scanned. |
| 52 | */ |
| 53 | public void setScanned(boolean scanned) |
| 54 | { |
| 55 | this.scanned = scanned; |
| 56 | } |
| 57 | |
| 58 | /** |
| 59 | * Return whether or not the underlying system table has been scanned. |
| 60 | * |
| 61 | * @return Where or not the underlying system table has been scanned. |
| 62 | */ |
| 63 | public boolean getScanned() |
| 64 | { |
| 65 | return scanned; |
| 66 | } |
| 67 | |
| 68 | /** |
| 69 | * Get the UniqueTupleDescriptor that matches the |
| 70 | * input uuid. |
| 71 | * |
| 72 | * @param uuid The UUID for the object |
| 73 | * |
| 74 | * @return The matching UniqueTupleDescriptor. |
| 75 | */ |
| 76 | public UniqueTupleDescriptor getUniqueTupleDescriptor(UUID uuid) |
| 77 | { |
| 78 | for (Iterator iterator = iterator(); iterator.hasNext(); ) |
| 79 | { |
| 80 | UniqueTupleDescriptor ud = (UniqueTupleDescriptor) iterator.next(); |
| 81 | if (ud.getUUID().equals(uuid)) |
| 82 | { |
| 83 | return ud; |
| 84 | } |
| 85 | } |
| 86 | return null; |
| 87 | } |
| 88 | |
| 89 | public java.util.Enumeration elements() { |
| 90 | return java.util.Collections.enumeration(this); |
| 91 | } |
| 92 | } |