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| <title> Managing conditional breakpoints </title> |
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| <h1> Managing conditional breakpoints </h1> |
| <p> |
| An enabling condition can be applied to a line breakpoint such that the |
| breakpoint suspends execution of a thread in one of these cases: </p> |
| <ul> |
| <li>when the enabling condition is true</li> |
| <li>when the enabling condition changes</li> |
| </ul> |
| <p> To set a condition on a breakpoint: </p> |
| <ol> |
| <li> |
| Find the breakpoint to which an enabling condition is to be applied (in |
| the Breakpoints view or in the editor marker bar). |
| </li> |
| <li> |
| From the breakpoint's pop-up menu, select <strong>Breakpoint |
| Properties...</strong>. The Breakpoint properties dialog will open. |
| </li> |
| <li> In the properties dialog, check the <strong>Enable Condition</strong> checkbox. </li> |
| <li> In the <strong>Condition</strong> field enter the expression for |
| the breakpoint condition. </li> |
| <li> Do one of the following: |
| <ul> |
| <li>If you want the breakpoint to stop every time the condition evaluates |
| to <em>true</em>, select the <strong>condition is 'true' </strong>option. |
| The expression provided must be a boolean expression.</li> |
| <li>If you want the breakpoint to stop only when the result of the |
| condition changes, select the <strong>value of condition changes </strong>option.</li> |
| </ul> |
| </li> |
| <li> Click <strong>OK</strong> to close the dialog and commit the changes. While |
| the breakpoint is enabled, thread execution suspends before that line of code |
| is executed if the breakpoint condition evaluates to <em>true</em>. |
| </li> |
| </ol> |
| <p> |
| A conditional breakpoint has a question mark overlay on the breakpoint icon.</p> |
| <p> <img border="0" src="../images/ngrelc.png" alt="Related concepts" > |
| <br> |
| <a href="../concepts/concepts-10.htm">Debugger</a><br> |
| <a href="../concepts/concepts-5.htm">Java perspectives</a><br> |
| <a href="../concepts/concepts-7.htm">Java editor</a><br> |
| </p> |
| <p> <img border="0" src="../images/ngrelt.png" alt="Related tasks" > |
| <br> |
| <a href="../tasks/tasks-144.htm">Adding breakpoints</a><br> |
| <a href="../tasks/tasks-146.htm">Applying hit counts</a><br> |
| <a href="../tasks/tasks-147.htm">Catching Java exceptions</a><br> |
| <a href="../tasks/tasks-144a.htm">Removing breakpoints</a><br> |
| <a href="../tasks/tasks-145.htm">Setting method breakpoints</a><br> |
| <a href="../tasks/tasks-136.htm">Stepping through the execution of a program</a> |
| </p> |
| <p> <img border="0" src="../images/ngrelr.png" alt="Related reference" ><br> |
| <a href="../reference/views/breakpoints/ref-breakpoints_view.htm">Breakpoints view</a> |
| </p> |
| |
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