| 1 | /* |
| 2 | |
| 3 | Derby - Class org.apache.derby.iapi.sql.dictionary.DependencyDescriptor |
| 4 | |
| 5 | Copyright 1997, 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.catalog.UUID; |
| 24 | |
| 25 | import org.apache.derby.iapi.reference.SQLState; |
| 26 | import org.apache.derby.iapi.services.sanity.SanityManager; |
| 27 | import org.apache.derby.iapi.sql.StatementType; |
| 28 | import org.apache.derby.catalog.DependableFinder; |
| 29 | import org.apache.derby.catalog.Dependable; |
| 30 | import org.apache.derby.iapi.services.io.StoredFormatIds; |
| 31 | import org.apache.derby.iapi.error.StandardException; |
| 32 | import org.apache.derby.iapi.sql.depend.DependencyManager; |
| 33 | import org.apache.derby.iapi.sql.depend.Dependent; |
| 34 | import org.apache.derby.iapi.sql.depend.Dependency; |
| 35 | import org.apache.derby.iapi.sql.depend.Provider; |
| 36 | |
| 37 | /** |
| 38 | * This interface is used to get information from a DependencyDescriptor. |
| 39 | * |
| 40 | * @version 0.1 |
| 41 | * @author Jerry Brenner |
| 42 | */ |
| 43 | |
| 44 | public class DependencyDescriptor extends TupleDescriptor |
| 45 | implements UniqueTupleDescriptor |
| 46 | { |
| 47 | /** public interface for this class is: |
| 48 | <ol> |
| 49 | <li>public DependableFinder getDependentFinder();</li> |
| 50 | <li>public UUID getProviderID();</li> |
| 51 | <li>public DependableFinder getProviderFinder();</li> |
| 52 | </ol> |
| 53 | */ |
| 54 | |
| 55 | // implementation |
| 56 | private UUID dependentID; |
| 57 | private DependableFinder dependentBloodhound; |
| 58 | private UUID providerID; |
| 59 | private DependableFinder providerBloodhound; |
| 60 | |
| 61 | /** |
| 62 | * Constructor for a DependencyDescriptor |
| 63 | * |
| 64 | * @param dependent The Dependent |
| 65 | * @param provider The Provider |
| 66 | */ |
| 67 | |
| 68 | public DependencyDescriptor( |
| 69 | Dependent dependent, |
| 70 | Provider provider |
| 71 | ) |
| 72 | { |
| 73 | dependentID = dependent.getObjectID(); |
| 74 | dependentBloodhound = dependent.getDependableFinder(); |
| 75 | providerID = provider.getObjectID(); |
| 76 | providerBloodhound = provider.getDependableFinder(); |
| 77 | } |
| 78 | |
| 79 | /** |
| 80 | * Constructor for a DependencyDescriptor |
| 81 | * |
| 82 | * @param dependentID The Dependent ID |
| 83 | * @param dependentBloodhound The bloodhound for finding the Dependent |
| 84 | * @param providerID The Provider ID |
| 85 | * @param providerBloodhound The bloodhound for finding the Provider |
| 86 | */ |
| 87 | |
| 88 | public DependencyDescriptor( |
| 89 | UUID dependentID, DependableFinder dependentBloodhound, |
| 90 | UUID providerID, DependableFinder providerBloodhound |
| 91 | ) |
| 92 | { |
| 93 | this.dependentID = dependentID; |
| 94 | this.dependentBloodhound = dependentBloodhound; |
| 95 | this.providerID = providerID; |
| 96 | this.providerBloodhound = providerBloodhound; |
| 97 | } |
| 98 | |
| 99 | // DependencyDescriptor interface |
| 100 | |
| 101 | /** |
| 102 | * Get the dependent's ID for the dependency. |
| 103 | * |
| 104 | * @return The dependent's ID. |
| 105 | */ |
| 106 | public UUID getUUID() |
| 107 | { |
| 108 | return dependentID; |
| 109 | } |
| 110 | |
| 111 | /** |
| 112 | * Get the dependent's type for the dependency. |
| 113 | * |
| 114 | * @return The dependent's type. |
| 115 | */ |
| 116 | public DependableFinder getDependentFinder() |
| 117 | { |
| 118 | return dependentBloodhound; |
| 119 | } |
| 120 | |
| 121 | /** |
| 122 | * Get the provider's ID for the dependency. |
| 123 | * |
| 124 | * @return The provider's ID. |
| 125 | */ |
| 126 | public UUID getProviderID() |
| 127 | { |
| 128 | return providerID; |
| 129 | } |
| 130 | |
| 131 | /** |
| 132 | * Get the provider's type for the dependency. |
| 133 | * |
| 134 | * @return The provider's type. |
| 135 | */ |
| 136 | public DependableFinder getProviderFinder() |
| 137 | { |
| 138 | return providerBloodhound; |
| 139 | } |
| 140 | } |