|
1 package org.hibernate.cache;
3
4 import java.io.Serializable  ;
5 import java.util.Map ;
6 import java.util.Set ;
7
8 import org.hibernate.EntityMode;
9 import org.hibernate.engine.QueryParameters;
10 import org.hibernate.engine.RowSelection;
11 import org.hibernate.type.Type;
12 import org.hibernate.util.EqualsHelper;
13
14
18 public class QueryKey implements Serializable {
19 private final String sqlQueryString;
20 private final Type[] types;
21 private final Object [] values;
22 private final Integer firstRow;
23 private final Integer maxRows;
24 private final Map namedParameters;
25 private final EntityMode entityMode;
26 private final Set filters;
27 private final int hashCode;
28
29 public QueryKey(String queryString, QueryParameters queryParameters, Set filters, EntityMode entityMode) {
30 this.sqlQueryString = queryString;
31 this.types = queryParameters.getPositionalParameterTypes();
32 this.values = queryParameters.getPositionalParameterValues();
33 RowSelection selection = queryParameters.getRowSelection();
34 if (selection!=null) {
35 firstRow = selection.getFirstRow();
36 maxRows = selection.getMaxRows();
37 }
38 else {
39 firstRow = null;
40 maxRows = null;
41 }
42 this.namedParameters = queryParameters.getNamedParameters();
43 this.entityMode = entityMode;
44 this.filters = filters;
45 this.hashCode = getHashCode();
46 }
47
48 public boolean equals(Object other) {
49 QueryKey that = (QueryKey) other;
50 if ( !sqlQueryString.equals(that.sqlQueryString) ) return false;
51 if ( !EqualsHelper.equals(firstRow, that.firstRow) || !EqualsHelper.equals(maxRows, that.maxRows) ) return false;
52 if (types==null) {
53 if (that.types!=null) return false;
54 }
55 else {
56 if (that.types==null) return false;
57 if ( types.length!=that.types.length ) return false;
58 for ( int i=0; i<types.length; i++ ) {
59 if ( types[i].getReturnedClass() != that.types[i].getReturnedClass() ) return false;
60 if ( !types[i].isEqual( values[i], that.values[i], entityMode ) ) return false;
61 }
62 }
63 if ( !EqualsHelper.equals(filters, that.filters) ) return false;
64 if ( !EqualsHelper.equals(namedParameters, that.namedParameters) ) return false;
65 return true;
66 }
67
68 public int hashCode() {
69 return hashCode;
70 }
71
72 private int getHashCode() {
73 int result = 13;
74 result = 37 * result + ( firstRow==null ? 0 : firstRow.hashCode() );
75 result = 37 * result + ( maxRows==null ? 0 : maxRows.hashCode() );
76 for ( int i=0; i<values.length; i++ ) {
77 result = 37 * result + ( values[i]==null ? 0 : types[i].getHashCode( values[i], entityMode ) );
78 }
79 result = 37 * result + ( namedParameters==null ? 0 : namedParameters.hashCode() );
80 result = 37 * result + ( filters==null ? 0 : filters.hashCode() );
81 result = 37 * result + sqlQueryString.hashCode();
82 return result;
83 }
84
85 public String toString() {
86 StringBuffer buf = new StringBuffer ()
87 .append("sql: ")
88 .append(sqlQueryString);
89 if (values!=null) {
90 buf.append("; parameters: ");
91 for (int i=0; i<values.length; i++) {
92 buf.append( values[i] )
93 .append(", ");
94 }
95 }
96 if (namedParameters!=null) {
97 buf.append("; named parameters: ")
98 .append(namedParameters);
99 }
100 if (filters!=null) {
101 buf.append("; filters: ")
102 .append(filters);
103 }
104 if (firstRow!=null) buf.append("; first row: ").append(firstRow);
105 if (maxRows!=null) buf.append("; max rows: ").append(maxRows);
106 return buf.toString();
107 }
108
109 }
110 |
Popular Tags |
Java API By Example, From Geeks To Geeks.