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| <h2 title="Interface SQLExecutionTag" class="title">Interface SQLExecutionTag</h2> |
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| <pre>public interface <span class="typeNameLabel">SQLExecutionTag</span></pre> |
| <div class="block"><p>This interface allows tag handlers implementing it to receive |
| values for parameter markers in their SQL statements.</p> |
| |
| <p>This interface is implemented by both <sql:query> and |
| <sql:update>. Its <code>addSQLParameter()</code> method |
| is called by nested parameter actions (such as <sql:param>) |
| to substitute <code>PreparedStatement</code> parameter values for |
| "?" parameter markers in the SQL statement of the enclosing |
| <code>SQLExecutionTag</code> action.</p> |
| |
| <p>The given parameter values are converted to their corresponding |
| SQL type (following the rules in the JDBC specification) before |
| they are sent to the database.</p> |
| |
| <p>Keeping track of the index of the parameter values being added |
| is the responsibility of the tag handler implementing this |
| interface</p> |
| |
| <p>The <code>SQLExcecutionTag</code> interface is exposed in order |
| to support custom parameter actions which may retrieve their |
| parameters from any source and process them before substituting |
| them for a parameter marker in the SQL statement of the |
| enclosing <code>SQLExecutionTag</code> action</p></div> |
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| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../javax/servlet/jsp/jstl/sql/SQLExecutionTag.html#addSQLParameter-java.lang.Object-">addSQLParameter</a></span>(java.lang.Object value)</code> |
| <div class="block">Adds a PreparedStatement parameter value.</div> |
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| <h4>addSQLParameter</h4> |
| <pre>void addSQLParameter(java.lang.Object value)</pre> |
| <div class="block">Adds a PreparedStatement parameter value. |
| Must behave as if it calls <code>PreparedStatement.setObject(int, Object)</code>. |
| For each tag invocation, the integral index passed logically to <code>setObject()</code> |
| must begin with 1 and must be incremented by 1 for each subsequent invocation |
| of <code>addSQLParameter()</code>. The Object logically passed to <code>setObject()</code> must be the |
| unmodified object received in the value argument.</div> |
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| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>value</code> - the <code>PreparedStatement</code> parameter value</dd> |
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