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1
50 package org.apache.avalon.excalibur.collections;
51
52 import java.util.NoSuchElementException  ;
53
54
65 public final class SynchronizedPriorityQueue
66 implements PriorityQueue
67 {
68 private final PriorityQueue m_priorityQueue;
69
70 public SynchronizedPriorityQueue( final PriorityQueue priorityQueue )
71 {
72 m_priorityQueue = priorityQueue;
73 }
74
75
78 public void clear()
79 {
80 synchronized( m_priorityQueue )
81 {
82 m_priorityQueue.clear();
83 }
84 }
85
86
91 public boolean isEmpty()
92 {
93 synchronized( m_priorityQueue )
94 {
95 return m_priorityQueue.isEmpty();
96 }
97 }
98
99
104 public void insert( final Object element )
105 {
106 synchronized( m_priorityQueue )
107 {
108 m_priorityQueue.insert( element );
109 }
110 }
111
112
118 public Object peek() throws NoSuchElementException
119 {
120 synchronized( m_priorityQueue )
121 {
122 return m_priorityQueue.peek();
123 }
124 }
125
126
132 public Object pop() throws NoSuchElementException
133 {
134 synchronized( m_priorityQueue )
135 {
136 return m_priorityQueue.pop();
137 }
138 }
139
140 public String toString()
141 {
142 synchronized( m_priorityQueue )
143 {
144 return m_priorityQueue.toString();
145 }
146 }
147 }
148
149
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