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| <div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">org.apache.calcite.avatica</a></div> |
| <h2 title="Class ConnectStringParser" class="title">Class ConnectStringParser</h2> |
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| <li>java.lang.Object</li> |
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| <pre>public class <span class="typeNameLabel">ConnectStringParser</span> |
| extends java.lang.Object</pre> |
| <div class="block">ConnectStringParser is a utility class that parses or creates a JDBC connect |
| string according to the |
| <a href="https://msdn.microsoft.com/en-us/library/windows/desktop/ms722656(v=vs.85).aspx"> |
| OLE DB Connection String Syntax</a>. |
| |
| <p>This code was adapted from Mondrian's mondrian.olap.Util class. |
| The primary differences between this and its Mondrian progenitor are: |
| |
| <ul> |
| <li>use of regular <code>Properties</code> for compatibility with the JDBC API |
| (replaces Mondrian's use of its own order-preserving and case-insensitive |
| PropertyList)</li> |
| |
| <li>ability to pass to <a href="#parse(java.lang.String)"><code>parse(java.lang.String)</code></a> a pre-existing Properties object into |
| which properties are to be parsed, possibly overriding prior values</li> |
| |
| <li>use of <code>SQLException</code>s rather than unchecked |
| <code>RuntimeException</code>s</li> |
| |
| <li>static members for parsing and creating connect strings</li> |
| |
| </ul> |
| |
| <p>ConnectStringParser has a private constructor. Callers use the static |
| members: |
| |
| <dl> |
| <dt><a href="#parse(java.lang.String)"><code>parse(String)</code></a> |
| <dd>Parses the connect string into a new Properties object. |
| |
| <dt><a href="#parse(java.lang.String,java.util.Properties)"><code>parse(String, Properties)</code></a> |
| <dd>Parses the connect string into an existing Properties object. |
| |
| <dt><a href="#getParamString(java.util.Properties)"><code>getParamString(Properties)</code></a> |
| <dd>Returns a param string, quoted and escaped as needed, to represent the |
| supplied name-value pairs. |
| </dl></div> |
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| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
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| <td class="colFirst"><code>static java.lang.String</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getParamString(java.util.Properties)">getParamString</a></span>​(java.util.Properties props)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns a param string, quoted and escaped as needed, to represent the |
| supplied name-value pairs.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>static java.util.Properties</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#parse(java.lang.String)">parse</a></span>​(java.lang.String s)</code></th> |
| <td class="colLast"> |
| <div class="block">Parses the connect string into a new Properties object.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>static java.util.Properties</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#parse(java.lang.String,java.util.Properties)">parse</a></span>​(java.lang.String s, |
| java.util.Properties props)</code></th> |
| <td class="colLast"> |
| <div class="block">Parses the connect string into an existing Properties object.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>static java.util.Map<java.lang.String,​java.lang.String></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#toMap(java.util.Properties)">toMap</a></span>​(java.util.Properties properties)</code></th> |
| <td class="colLast"> |
| <div class="block">Converts a <code>Properties</code> object to a <code><code>Map</code><String, |
| String></code>.</div> |
| </td> |
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| <code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li> |
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| <h4>parse</h4> |
| <pre class="methodSignature">public static java.util.Properties parse​(java.lang.String s) |
| throws java.sql.SQLException</pre> |
| <div class="block">Parses the connect string into a new Properties object.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>s</code> - connect string to parse</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>properties object with parsed params</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code>java.sql.SQLException</code> - error parsing name-value pairs</dd> |
| </dl> |
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| <h4>parse</h4> |
| <pre class="methodSignature">public static java.util.Properties parse​(java.lang.String s, |
| java.util.Properties props) |
| throws java.sql.SQLException</pre> |
| <div class="block">Parses the connect string into an existing Properties object.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>s</code> - connect string to parse</dd> |
| <dd><code>props</code> - optional properties object, may be <code>null</code></dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>properties object with parsed params; if an input <code> |
| props</code> was supplied, any duplicate properties will have been |
| replaced by those from the connect string.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code>java.sql.SQLException</code> - error parsing name-value pairs</dd> |
| </dl> |
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| <h4>getParamString</h4> |
| <pre class="methodSignature">public static java.lang.String getParamString​(java.util.Properties props)</pre> |
| <div class="block">Returns a param string, quoted and escaped as needed, to represent the |
| supplied name-value pairs.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>props</code> - name-value pairs</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>param string, never <code>null</code></dd> |
| </dl> |
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| <h4>toMap</h4> |
| <pre class="methodSignature">public static java.util.Map<java.lang.String,​java.lang.String> toMap​(java.util.Properties properties)</pre> |
| <div class="block">Converts a <code>Properties</code> object to a <code><code>Map</code><String, |
| String></code>. |
| |
| <p>This is necessary because <code>Properties</code> is a dinosaur class. It |
| ought to extend <code>Map<String,String></code>, but instead |
| extends <code><code>Hashtable</code><Object,Object></code>. |
| |
| <p>Typical usage, to iterate over a <code>Properties</code>: |
| |
| <blockquote> |
| <code> |
| Properties properties;<br> |
| for (Map.Entry<String, String> entry = |
| Util.toMap(properties).entrySet()) {<br> |
| println("key=" + entry.getKey() + ", value=" + entry.getValue());<br> |
| } |
| </code> |
| </blockquote></div> |
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