http://git-wip-us.apache.org/repos/asf/hbase-site/blob/e1eb0a07/devapidocs/src-html/org/apache/hbase/archetypes/exemplars/client/HelloHBase.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hbase/archetypes/exemplars/client/HelloHBase.html b/devapidocs/src-html/org/apache/hbase/archetypes/exemplars/client/HelloHBase.html index e787c65..3b73c38 100644 --- a/devapidocs/src-html/org/apache/hbase/archetypes/exemplars/client/HelloHBase.html +++ b/devapidocs/src-html/org/apache/hbase/archetypes/exemplars/client/HelloHBase.html @@ -29,209 +29,211 @@ <span class="sourceLineNo">021</span>import java.io.IOException;<a name="line.21"></a> <span class="sourceLineNo">022</span>import java.util.Map.Entry;<a name="line.22"></a> <span class="sourceLineNo">023</span>import java.util.NavigableMap;<a name="line.23"></a> -<span class="sourceLineNo">024</span>import org.apache.hadoop.hbase.HColumnDescriptor;<a name="line.24"></a> -<span class="sourceLineNo">025</span>import org.apache.hadoop.hbase.HTableDescriptor;<a name="line.25"></a> -<span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.NamespaceDescriptor;<a name="line.26"></a> -<span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.NamespaceNotFoundException;<a name="line.27"></a> -<span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.TableName;<a name="line.28"></a> -<span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.client.Admin;<a name="line.29"></a> -<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.client.Connection;<a name="line.30"></a> -<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.client.ConnectionFactory;<a name="line.31"></a> -<span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.client.Delete;<a name="line.32"></a> -<span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.client.Get;<a name="line.33"></a> -<span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.client.Put;<a name="line.34"></a> -<span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.client.Result;<a name="line.35"></a> -<span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.client.Table;<a name="line.36"></a> -<span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.37"></a> -<span class="sourceLineNo">038</span><a name="line.38"></a> -<span class="sourceLineNo">039</span>/**<a name="line.39"></a> -<span class="sourceLineNo">040</span> * Successful running of this application requires access to an active instance<a name="line.40"></a> -<span class="sourceLineNo">041</span> * of HBase. For install instructions for a standalone instance of HBase, please<a name="line.41"></a> -<span class="sourceLineNo">042</span> * refer to https://hbase.apache.org/book.html#quickstart<a name="line.42"></a> -<span class="sourceLineNo">043</span> */<a name="line.43"></a> -<span class="sourceLineNo">044</span>public final class HelloHBase {<a name="line.44"></a> -<span class="sourceLineNo">045</span><a name="line.45"></a> -<span class="sourceLineNo">046</span> protected static final String MY_NAMESPACE_NAME = "myTestNamespace";<a name="line.46"></a> -<span class="sourceLineNo">047</span> static final TableName MY_TABLE_NAME = TableName.valueOf("myTestTable");<a name="line.47"></a> -<span class="sourceLineNo">048</span> static final byte[] MY_COLUMN_FAMILY_NAME = Bytes.toBytes("cf");<a name="line.48"></a> -<span class="sourceLineNo">049</span> static final byte[] MY_FIRST_COLUMN_QUALIFIER<a name="line.49"></a> -<span class="sourceLineNo">050</span> = Bytes.toBytes("myFirstColumn");<a name="line.50"></a> -<span class="sourceLineNo">051</span> static final byte[] MY_SECOND_COLUMN_QUALIFIER<a name="line.51"></a> -<span class="sourceLineNo">052</span> = Bytes.toBytes("mySecondColumn");<a name="line.52"></a> -<span class="sourceLineNo">053</span> static final byte[] MY_ROW_ID = Bytes.toBytes("rowId01");<a name="line.53"></a> -<span class="sourceLineNo">054</span><a name="line.54"></a> -<span class="sourceLineNo">055</span> // Private constructor included here to avoid checkstyle warnings<a name="line.55"></a> -<span class="sourceLineNo">056</span> private HelloHBase() {<a name="line.56"></a> -<span class="sourceLineNo">057</span> }<a name="line.57"></a> -<span class="sourceLineNo">058</span><a name="line.58"></a> -<span class="sourceLineNo">059</span> public static void main(final String[] args) throws IOException {<a name="line.59"></a> -<span class="sourceLineNo">060</span> final boolean deleteAllAtEOJ = true;<a name="line.60"></a> -<span class="sourceLineNo">061</span><a name="line.61"></a> -<span class="sourceLineNo">062</span> /**<a name="line.62"></a> -<span class="sourceLineNo">063</span> * ConnectionFactory#createConnection() automatically looks for<a name="line.63"></a> -<span class="sourceLineNo">064</span> * hbase-site.xml (HBase configuration parameters) on the system's<a name="line.64"></a> -<span class="sourceLineNo">065</span> * CLASSPATH, to enable creation of Connection to HBase via ZooKeeper.<a name="line.65"></a> -<span class="sourceLineNo">066</span> */<a name="line.66"></a> -<span class="sourceLineNo">067</span> try (Connection connection = ConnectionFactory.createConnection();<a name="line.67"></a> -<span class="sourceLineNo">068</span> Admin admin = connection.getAdmin()) {<a name="line.68"></a> -<span class="sourceLineNo">069</span><a name="line.69"></a> -<span class="sourceLineNo">070</span> admin.getClusterStatus(); // assure connection successfully established<a name="line.70"></a> -<span class="sourceLineNo">071</span> System.out.println("\n*** Hello HBase! -- Connection has been "<a name="line.71"></a> -<span class="sourceLineNo">072</span> + "established via ZooKeeper!!\n");<a name="line.72"></a> -<span class="sourceLineNo">073</span><a name="line.73"></a> -<span class="sourceLineNo">074</span> createNamespaceAndTable(admin);<a name="line.74"></a> -<span class="sourceLineNo">075</span><a name="line.75"></a> -<span class="sourceLineNo">076</span> System.out.println("Getting a Table object for [" + MY_TABLE_NAME<a name="line.76"></a> -<span class="sourceLineNo">077</span> + "] with which to perform CRUD operations in HBase.");<a name="line.77"></a> -<span class="sourceLineNo">078</span> try (Table table = connection.getTable(MY_TABLE_NAME)) {<a name="line.78"></a> -<span class="sourceLineNo">079</span><a name="line.79"></a> -<span class="sourceLineNo">080</span> putRowToTable(table);<a name="line.80"></a> -<span class="sourceLineNo">081</span> getAndPrintRowContents(table);<a name="line.81"></a> -<span class="sourceLineNo">082</span><a name="line.82"></a> -<span class="sourceLineNo">083</span> if (deleteAllAtEOJ) {<a name="line.83"></a> -<span class="sourceLineNo">084</span> deleteRow(table);<a name="line.84"></a> -<span class="sourceLineNo">085</span> }<a name="line.85"></a> -<span class="sourceLineNo">086</span> }<a name="line.86"></a> -<span class="sourceLineNo">087</span><a name="line.87"></a> -<span class="sourceLineNo">088</span> if (deleteAllAtEOJ) {<a name="line.88"></a> -<span class="sourceLineNo">089</span> deleteNamespaceAndTable(admin);<a name="line.89"></a> -<span class="sourceLineNo">090</span> }<a name="line.90"></a> -<span class="sourceLineNo">091</span> }<a name="line.91"></a> -<span class="sourceLineNo">092</span> }<a name="line.92"></a> -<span class="sourceLineNo">093</span><a name="line.93"></a> -<span class="sourceLineNo">094</span> /**<a name="line.94"></a> -<span class="sourceLineNo">095</span> * Invokes Admin#createNamespace and Admin#createTable to create a namespace<a name="line.95"></a> -<span class="sourceLineNo">096</span> * with a table that has one column-family.<a name="line.96"></a> -<span class="sourceLineNo">097</span> *<a name="line.97"></a> -<span class="sourceLineNo">098</span> * @param admin Standard Admin object<a name="line.98"></a> -<span class="sourceLineNo">099</span> * @throws IOException If IO problem encountered<a name="line.99"></a> -<span class="sourceLineNo">100</span> */<a name="line.100"></a> -<span class="sourceLineNo">101</span> static void createNamespaceAndTable(final Admin admin) throws IOException {<a name="line.101"></a> -<span class="sourceLineNo">102</span><a name="line.102"></a> -<span class="sourceLineNo">103</span> if (!namespaceExists(admin, MY_NAMESPACE_NAME)) {<a name="line.103"></a> -<span class="sourceLineNo">104</span> System.out.println("Creating Namespace [" + MY_NAMESPACE_NAME + "].");<a name="line.104"></a> -<span class="sourceLineNo">105</span><a name="line.105"></a> -<span class="sourceLineNo">106</span> admin.createNamespace(NamespaceDescriptor<a name="line.106"></a> -<span class="sourceLineNo">107</span> .create(MY_NAMESPACE_NAME).build());<a name="line.107"></a> -<span class="sourceLineNo">108</span> }<a name="line.108"></a> -<span class="sourceLineNo">109</span> if (!admin.tableExists(MY_TABLE_NAME)) {<a name="line.109"></a> -<span class="sourceLineNo">110</span> System.out.println("Creating Table [" + MY_TABLE_NAME.getNameAsString()<a name="line.110"></a> -<span class="sourceLineNo">111</span> + "], with one Column Family ["<a name="line.111"></a> -<span class="sourceLineNo">112</span> + Bytes.toString(MY_COLUMN_FAMILY_NAME) + "].");<a name="line.112"></a> -<span class="sourceLineNo">113</span><a name="line.113"></a> -<span class="sourceLineNo">114</span> admin.createTable(new HTableDescriptor(MY_TABLE_NAME)<a name="line.114"></a> -<span class="sourceLineNo">115</span> .addFamily(new HColumnDescriptor(MY_COLUMN_FAMILY_NAME)));<a name="line.115"></a> -<span class="sourceLineNo">116</span> }<a name="line.116"></a> -<span class="sourceLineNo">117</span> }<a name="line.117"></a> -<span class="sourceLineNo">118</span><a name="line.118"></a> -<span class="sourceLineNo">119</span> /**<a name="line.119"></a> -<span class="sourceLineNo">120</span> * Invokes Table#put to store a row (with two new columns created 'on the<a name="line.120"></a> -<span class="sourceLineNo">121</span> * fly') into the table.<a name="line.121"></a> -<span class="sourceLineNo">122</span> *<a name="line.122"></a> -<span class="sourceLineNo">123</span> * @param table Standard Table object (used for CRUD operations).<a name="line.123"></a> -<span class="sourceLineNo">124</span> * @throws IOException If IO problem encountered<a name="line.124"></a> -<span class="sourceLineNo">125</span> */<a name="line.125"></a> -<span class="sourceLineNo">126</span> static void putRowToTable(final Table table) throws IOException {<a name="line.126"></a> -<span class="sourceLineNo">127</span><a name="line.127"></a> -<span class="sourceLineNo">128</span> table.put(new Put(MY_ROW_ID).addColumn(MY_COLUMN_FAMILY_NAME,<a name="line.128"></a> -<span class="sourceLineNo">129</span> MY_FIRST_COLUMN_QUALIFIER,<a name="line.129"></a> -<span class="sourceLineNo">130</span> Bytes.toBytes("Hello")).addColumn(MY_COLUMN_FAMILY_NAME,<a name="line.130"></a> -<span class="sourceLineNo">131</span> MY_SECOND_COLUMN_QUALIFIER,<a name="line.131"></a> -<span class="sourceLineNo">132</span> Bytes.toBytes("World!")));<a name="line.132"></a> -<span class="sourceLineNo">133</span><a name="line.133"></a> -<span class="sourceLineNo">134</span> System.out.println("Row [" + Bytes.toString(MY_ROW_ID)<a name="line.134"></a> -<span class="sourceLineNo">135</span> + "] was put into Table ["<a name="line.135"></a> -<span class="sourceLineNo">136</span> + table.getName().getNameAsString() + "] in HBase;\n"<a name="line.136"></a> -<span class="sourceLineNo">137</span> + " the row's two columns (created 'on the fly') are: ["<a name="line.137"></a> -<span class="sourceLineNo">138</span> + Bytes.toString(MY_COLUMN_FAMILY_NAME) + ":"<a name="line.138"></a> -<span class="sourceLineNo">139</span> + Bytes.toString(MY_FIRST_COLUMN_QUALIFIER)<a name="line.139"></a> -<span class="sourceLineNo">140</span> + "] and [" + Bytes.toString(MY_COLUMN_FAMILY_NAME) + ":"<a name="line.140"></a> -<span class="sourceLineNo">141</span> + Bytes.toString(MY_SECOND_COLUMN_QUALIFIER) + "]");<a name="line.141"></a> -<span class="sourceLineNo">142</span> }<a name="line.142"></a> -<span class="sourceLineNo">143</span><a name="line.143"></a> -<span class="sourceLineNo">144</span> /**<a name="line.144"></a> -<span class="sourceLineNo">145</span> * Invokes Table#get and prints out the contents of the retrieved row.<a name="line.145"></a> -<span class="sourceLineNo">146</span> *<a name="line.146"></a> -<span class="sourceLineNo">147</span> * @param table Standard Table object<a name="line.147"></a> -<span class="sourceLineNo">148</span> * @throws IOException If IO problem encountered<a name="line.148"></a> -<span class="sourceLineNo">149</span> */<a name="line.149"></a> -<span class="sourceLineNo">150</span> static void getAndPrintRowContents(final Table table) throws IOException {<a name="line.150"></a> -<span class="sourceLineNo">151</span><a name="line.151"></a> -<span class="sourceLineNo">152</span> Result row = table.get(new Get(MY_ROW_ID));<a name="line.152"></a> +<span class="sourceLineNo">024</span>import org.apache.hadoop.hbase.NamespaceDescriptor;<a name="line.24"></a> +<span class="sourceLineNo">025</span>import org.apache.hadoop.hbase.NamespaceNotFoundException;<a name="line.25"></a> +<span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.TableName;<a name="line.26"></a> +<span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.client.Admin;<a name="line.27"></a> +<span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.client.ColumnFamilyDescriptorBuilder;<a name="line.28"></a> +<span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.client.Connection;<a name="line.29"></a> +<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.client.ConnectionFactory;<a name="line.30"></a> +<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.client.Delete;<a name="line.31"></a> +<span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.client.Get;<a name="line.32"></a> +<span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.client.Put;<a name="line.33"></a> +<span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.client.Result;<a name="line.34"></a> +<span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.client.Table;<a name="line.35"></a> +<span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.client.TableDescriptor;<a name="line.36"></a> +<span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.client.TableDescriptorBuilder;<a name="line.37"></a> +<span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.38"></a> +<span class="sourceLineNo">039</span><a name="line.39"></a> +<span class="sourceLineNo">040</span>/**<a name="line.40"></a> +<span class="sourceLineNo">041</span> * Successful running of this application requires access to an active instance<a name="line.41"></a> +<span class="sourceLineNo">042</span> * of HBase. For install instructions for a standalone instance of HBase, please<a name="line.42"></a> +<span class="sourceLineNo">043</span> * refer to https://hbase.apache.org/book.html#quickstart<a name="line.43"></a> +<span class="sourceLineNo">044</span> */<a name="line.44"></a> +<span class="sourceLineNo">045</span>public final class HelloHBase {<a name="line.45"></a> +<span class="sourceLineNo">046</span><a name="line.46"></a> +<span class="sourceLineNo">047</span> protected static final String MY_NAMESPACE_NAME = "myTestNamespace";<a name="line.47"></a> +<span class="sourceLineNo">048</span> static final TableName MY_TABLE_NAME = TableName.valueOf("myTestTable");<a name="line.48"></a> +<span class="sourceLineNo">049</span> static final byte[] MY_COLUMN_FAMILY_NAME = Bytes.toBytes("cf");<a name="line.49"></a> +<span class="sourceLineNo">050</span> static final byte[] MY_FIRST_COLUMN_QUALIFIER<a name="line.50"></a> +<span class="sourceLineNo">051</span> = Bytes.toBytes("myFirstColumn");<a name="line.51"></a> +<span class="sourceLineNo">052</span> static final byte[] MY_SECOND_COLUMN_QUALIFIER<a name="line.52"></a> +<span class="sourceLineNo">053</span> = Bytes.toBytes("mySecondColumn");<a name="line.53"></a> +<span class="sourceLineNo">054</span> static final byte[] MY_ROW_ID = Bytes.toBytes("rowId01");<a name="line.54"></a> +<span class="sourceLineNo">055</span><a name="line.55"></a> +<span class="sourceLineNo">056</span> // Private constructor included here to avoid checkstyle warnings<a name="line.56"></a> +<span class="sourceLineNo">057</span> private HelloHBase() {<a name="line.57"></a> +<span class="sourceLineNo">058</span> }<a name="line.58"></a> +<span class="sourceLineNo">059</span><a name="line.59"></a> +<span class="sourceLineNo">060</span> public static void main(final String[] args) throws IOException {<a name="line.60"></a> +<span class="sourceLineNo">061</span> final boolean deleteAllAtEOJ = true;<a name="line.61"></a> +<span class="sourceLineNo">062</span><a name="line.62"></a> +<span class="sourceLineNo">063</span> /**<a name="line.63"></a> +<span class="sourceLineNo">064</span> * ConnectionFactory#createConnection() automatically looks for<a name="line.64"></a> +<span class="sourceLineNo">065</span> * hbase-site.xml (HBase configuration parameters) on the system's<a name="line.65"></a> +<span class="sourceLineNo">066</span> * CLASSPATH, to enable creation of Connection to HBase via ZooKeeper.<a name="line.66"></a> +<span class="sourceLineNo">067</span> */<a name="line.67"></a> +<span class="sourceLineNo">068</span> try (Connection connection = ConnectionFactory.createConnection();<a name="line.68"></a> +<span class="sourceLineNo">069</span> Admin admin = connection.getAdmin()) {<a name="line.69"></a> +<span class="sourceLineNo">070</span><a name="line.70"></a> +<span class="sourceLineNo">071</span> admin.getClusterStatus(); // assure connection successfully established<a name="line.71"></a> +<span class="sourceLineNo">072</span> System.out.println("\n*** Hello HBase! -- Connection has been "<a name="line.72"></a> +<span class="sourceLineNo">073</span> + "established via ZooKeeper!!\n");<a name="line.73"></a> +<span class="sourceLineNo">074</span><a name="line.74"></a> +<span class="sourceLineNo">075</span> createNamespaceAndTable(admin);<a name="line.75"></a> +<span class="sourceLineNo">076</span><a name="line.76"></a> +<span class="sourceLineNo">077</span> System.out.println("Getting a Table object for [" + MY_TABLE_NAME<a name="line.77"></a> +<span class="sourceLineNo">078</span> + "] with which to perform CRUD operations in HBase.");<a name="line.78"></a> +<span class="sourceLineNo">079</span> try (Table table = connection.getTable(MY_TABLE_NAME)) {<a name="line.79"></a> +<span class="sourceLineNo">080</span><a name="line.80"></a> +<span class="sourceLineNo">081</span> putRowToTable(table);<a name="line.81"></a> +<span class="sourceLineNo">082</span> getAndPrintRowContents(table);<a name="line.82"></a> +<span class="sourceLineNo">083</span><a name="line.83"></a> +<span class="sourceLineNo">084</span> if (deleteAllAtEOJ) {<a name="line.84"></a> +<span class="sourceLineNo">085</span> deleteRow(table);<a name="line.85"></a> +<span class="sourceLineNo">086</span> }<a name="line.86"></a> +<span class="sourceLineNo">087</span> }<a name="line.87"></a> +<span class="sourceLineNo">088</span><a name="line.88"></a> +<span class="sourceLineNo">089</span> if (deleteAllAtEOJ) {<a name="line.89"></a> +<span class="sourceLineNo">090</span> deleteNamespaceAndTable(admin);<a name="line.90"></a> +<span class="sourceLineNo">091</span> }<a name="line.91"></a> +<span class="sourceLineNo">092</span> }<a name="line.92"></a> +<span class="sourceLineNo">093</span> }<a name="line.93"></a> +<span class="sourceLineNo">094</span><a name="line.94"></a> +<span class="sourceLineNo">095</span> /**<a name="line.95"></a> +<span class="sourceLineNo">096</span> * Invokes Admin#createNamespace and Admin#createTable to create a namespace<a name="line.96"></a> +<span class="sourceLineNo">097</span> * with a table that has one column-family.<a name="line.97"></a> +<span class="sourceLineNo">098</span> *<a name="line.98"></a> +<span class="sourceLineNo">099</span> * @param admin Standard Admin object<a name="line.99"></a> +<span class="sourceLineNo">100</span> * @throws IOException If IO problem encountered<a name="line.100"></a> +<span class="sourceLineNo">101</span> */<a name="line.101"></a> +<span class="sourceLineNo">102</span> static void createNamespaceAndTable(final Admin admin) throws IOException {<a name="line.102"></a> +<span class="sourceLineNo">103</span><a name="line.103"></a> +<span class="sourceLineNo">104</span> if (!namespaceExists(admin, MY_NAMESPACE_NAME)) {<a name="line.104"></a> +<span class="sourceLineNo">105</span> System.out.println("Creating Namespace [" + MY_NAMESPACE_NAME + "].");<a name="line.105"></a> +<span class="sourceLineNo">106</span><a name="line.106"></a> +<span class="sourceLineNo">107</span> admin.createNamespace(NamespaceDescriptor<a name="line.107"></a> +<span class="sourceLineNo">108</span> .create(MY_NAMESPACE_NAME).build());<a name="line.108"></a> +<span class="sourceLineNo">109</span> }<a name="line.109"></a> +<span class="sourceLineNo">110</span> if (!admin.tableExists(MY_TABLE_NAME)) {<a name="line.110"></a> +<span class="sourceLineNo">111</span> System.out.println("Creating Table [" + MY_TABLE_NAME.getNameAsString()<a name="line.111"></a> +<span class="sourceLineNo">112</span> + "], with one Column Family ["<a name="line.112"></a> +<span class="sourceLineNo">113</span> + Bytes.toString(MY_COLUMN_FAMILY_NAME) + "].");<a name="line.113"></a> +<span class="sourceLineNo">114</span> TableDescriptor desc = TableDescriptorBuilder.newBuilder(MY_TABLE_NAME)<a name="line.114"></a> +<span class="sourceLineNo">115</span> .addColumnFamily(ColumnFamilyDescriptorBuilder.of(MY_COLUMN_FAMILY_NAME))<a name="line.115"></a> +<span class="sourceLineNo">116</span> .build();<a name="line.116"></a> +<span class="sourceLineNo">117</span> admin.createTable(desc);<a name="line.117"></a> +<span class="sourceLineNo">118</span> }<a name="line.118"></a> +<span class="sourceLineNo">119</span> }<a name="line.119"></a> +<span class="sourceLineNo">120</span><a name="line.120"></a> +<span class="sourceLineNo">121</span> /**<a name="line.121"></a> +<span class="sourceLineNo">122</span> * Invokes Table#put to store a row (with two new columns created 'on the<a name="line.122"></a> +<span class="sourceLineNo">123</span> * fly') into the table.<a name="line.123"></a> +<span class="sourceLineNo">124</span> *<a name="line.124"></a> +<span class="sourceLineNo">125</span> * @param table Standard Table object (used for CRUD operations).<a name="line.125"></a> +<span class="sourceLineNo">126</span> * @throws IOException If IO problem encountered<a name="line.126"></a> +<span class="sourceLineNo">127</span> */<a name="line.127"></a> +<span class="sourceLineNo">128</span> static void putRowToTable(final Table table) throws IOException {<a name="line.128"></a> +<span class="sourceLineNo">129</span><a name="line.129"></a> +<span class="sourceLineNo">130</span> table.put(new Put(MY_ROW_ID).addColumn(MY_COLUMN_FAMILY_NAME,<a name="line.130"></a> +<span class="sourceLineNo">131</span> MY_FIRST_COLUMN_QUALIFIER,<a name="line.131"></a> +<span class="sourceLineNo">132</span> Bytes.toBytes("Hello")).addColumn(MY_COLUMN_FAMILY_NAME,<a name="line.132"></a> +<span class="sourceLineNo">133</span> MY_SECOND_COLUMN_QUALIFIER,<a name="line.133"></a> +<span class="sourceLineNo">134</span> Bytes.toBytes("World!")));<a name="line.134"></a> +<span class="sourceLineNo">135</span><a name="line.135"></a> +<span class="sourceLineNo">136</span> System.out.println("Row [" + Bytes.toString(MY_ROW_ID)<a name="line.136"></a> +<span class="sourceLineNo">137</span> + "] was put into Table ["<a name="line.137"></a> +<span class="sourceLineNo">138</span> + table.getName().getNameAsString() + "] in HBase;\n"<a name="line.138"></a> +<span class="sourceLineNo">139</span> + " the row's two columns (created 'on the fly') are: ["<a name="line.139"></a> +<span class="sourceLineNo">140</span> + Bytes.toString(MY_COLUMN_FAMILY_NAME) + ":"<a name="line.140"></a> +<span class="sourceLineNo">141</span> + Bytes.toString(MY_FIRST_COLUMN_QUALIFIER)<a name="line.141"></a> +<span class="sourceLineNo">142</span> + "] and [" + Bytes.toString(MY_COLUMN_FAMILY_NAME) + ":"<a name="line.142"></a> +<span class="sourceLineNo">143</span> + Bytes.toString(MY_SECOND_COLUMN_QUALIFIER) + "]");<a name="line.143"></a> +<span class="sourceLineNo">144</span> }<a name="line.144"></a> +<span class="sourceLineNo">145</span><a name="line.145"></a> +<span class="sourceLineNo">146</span> /**<a name="line.146"></a> +<span class="sourceLineNo">147</span> * Invokes Table#get and prints out the contents of the retrieved row.<a name="line.147"></a> +<span class="sourceLineNo">148</span> *<a name="line.148"></a> +<span class="sourceLineNo">149</span> * @param table Standard Table object<a name="line.149"></a> +<span class="sourceLineNo">150</span> * @throws IOException If IO problem encountered<a name="line.150"></a> +<span class="sourceLineNo">151</span> */<a name="line.151"></a> +<span class="sourceLineNo">152</span> static void getAndPrintRowContents(final Table table) throws IOException {<a name="line.152"></a> <span class="sourceLineNo">153</span><a name="line.153"></a> -<span class="sourceLineNo">154</span> System.out.println("Row [" + Bytes.toString(row.getRow())<a name="line.154"></a> -<span class="sourceLineNo">155</span> + "] was retrieved from Table ["<a name="line.155"></a> -<span class="sourceLineNo">156</span> + table.getName().getNameAsString()<a name="line.156"></a> -<span class="sourceLineNo">157</span> + "] in HBase, with the following content:");<a name="line.157"></a> -<span class="sourceLineNo">158</span><a name="line.158"></a> -<span class="sourceLineNo">159</span> for (Entry<byte[], NavigableMap<byte[], byte[]>> colFamilyEntry<a name="line.159"></a> -<span class="sourceLineNo">160</span> : row.getNoVersionMap().entrySet()) {<a name="line.160"></a> -<span class="sourceLineNo">161</span> String columnFamilyName = Bytes.toString(colFamilyEntry.getKey());<a name="line.161"></a> -<span class="sourceLineNo">162</span><a name="line.162"></a> -<span class="sourceLineNo">163</span> System.out.println(" Columns in Column Family [" + columnFamilyName<a name="line.163"></a> -<span class="sourceLineNo">164</span> + "]:");<a name="line.164"></a> -<span class="sourceLineNo">165</span><a name="line.165"></a> -<span class="sourceLineNo">166</span> for (Entry<byte[], byte[]> columnNameAndValueMap<a name="line.166"></a> -<span class="sourceLineNo">167</span> : colFamilyEntry.getValue().entrySet()) {<a name="line.167"></a> -<span class="sourceLineNo">168</span><a name="line.168"></a> -<span class="sourceLineNo">169</span> System.out.println(" Value of Column [" + columnFamilyName + ":"<a name="line.169"></a> -<span class="sourceLineNo">170</span> + Bytes.toString(columnNameAndValueMap.getKey()) + "] == "<a name="line.170"></a> -<span class="sourceLineNo">171</span> + Bytes.toString(columnNameAndValueMap.getValue()));<a name="line.171"></a> -<span class="sourceLineNo">172</span> }<a name="line.172"></a> -<span class="sourceLineNo">173</span> }<a name="line.173"></a> -<span class="sourceLineNo">174</span> }<a name="line.174"></a> -<span class="sourceLineNo">175</span><a name="line.175"></a> -<span class="sourceLineNo">176</span> /**<a name="line.176"></a> -<span class="sourceLineNo">177</span> * Checks to see whether a namespace exists.<a name="line.177"></a> -<span class="sourceLineNo">178</span> *<a name="line.178"></a> -<span class="sourceLineNo">179</span> * @param admin Standard Admin object<a name="line.179"></a> -<span class="sourceLineNo">180</span> * @param namespaceName Name of namespace<a name="line.180"></a> -<span class="sourceLineNo">181</span> * @return true If namespace exists<a name="line.181"></a> -<span class="sourceLineNo">182</span> * @throws IOException If IO problem encountered<a name="line.182"></a> -<span class="sourceLineNo">183</span> */<a name="line.183"></a> -<span class="sourceLineNo">184</span> static boolean namespaceExists(final Admin admin, final String namespaceName)<a name="line.184"></a> -<span class="sourceLineNo">185</span> throws IOException {<a name="line.185"></a> -<span class="sourceLineNo">186</span> try {<a name="line.186"></a> -<span class="sourceLineNo">187</span> admin.getNamespaceDescriptor(namespaceName);<a name="line.187"></a> -<span class="sourceLineNo">188</span> } catch (NamespaceNotFoundException e) {<a name="line.188"></a> -<span class="sourceLineNo">189</span> return false;<a name="line.189"></a> -<span class="sourceLineNo">190</span> }<a name="line.190"></a> -<span class="sourceLineNo">191</span> return true;<a name="line.191"></a> -<span class="sourceLineNo">192</span> }<a name="line.192"></a> -<span class="sourceLineNo">193</span><a name="line.193"></a> -<span class="sourceLineNo">194</span> /**<a name="line.194"></a> -<span class="sourceLineNo">195</span> * Invokes Table#delete to delete test data (i.e. the row)<a name="line.195"></a> -<span class="sourceLineNo">196</span> *<a name="line.196"></a> -<span class="sourceLineNo">197</span> * @param table Standard Table object<a name="line.197"></a> -<span class="sourceLineNo">198</span> * @throws IOException If IO problem is encountered<a name="line.198"></a> -<span class="sourceLineNo">199</span> */<a name="line.199"></a> -<span class="sourceLineNo">200</span> static void deleteRow(final Table table) throws IOException {<a name="line.200"></a> -<span class="sourceLineNo">201</span> System.out.println("Deleting row [" + Bytes.toString(MY_ROW_ID)<a name="line.201"></a> -<span class="sourceLineNo">202</span> + "] from Table ["<a name="line.202"></a> -<span class="sourceLineNo">203</span> + table.getName().getNameAsString() + "].");<a name="line.203"></a> -<span class="sourceLineNo">204</span> table.delete(new Delete(MY_ROW_ID));<a name="line.204"></a> -<span class="sourceLineNo">205</span> }<a name="line.205"></a> -<span class="sourceLineNo">206</span><a name="line.206"></a> -<span class="sourceLineNo">207</span> /**<a name="line.207"></a> -<span class="sourceLineNo">208</span> * Invokes Admin#disableTable, Admin#deleteTable, and Admin#deleteNamespace to<a name="line.208"></a> -<span class="sourceLineNo">209</span> * disable/delete Table and delete Namespace.<a name="line.209"></a> -<span class="sourceLineNo">210</span> *<a name="line.210"></a> -<span class="sourceLineNo">211</span> * @param admin Standard Admin object<a name="line.211"></a> -<span class="sourceLineNo">212</span> * @throws IOException If IO problem is encountered<a name="line.212"></a> -<span class="sourceLineNo">213</span> */<a name="line.213"></a> -<span class="sourceLineNo">214</span> static void deleteNamespaceAndTable(final Admin admin) throws IOException {<a name="line.214"></a> -<span class="sourceLineNo">215</span> if (admin.tableExists(MY_TABLE_NAME)) {<a name="line.215"></a> -<span class="sourceLineNo">216</span> System.out.println("Disabling/deleting Table ["<a name="line.216"></a> -<span class="sourceLineNo">217</span> + MY_TABLE_NAME.getNameAsString() + "].");<a name="line.217"></a> -<span class="sourceLineNo">218</span> admin.disableTable(MY_TABLE_NAME); // Disable a table before deleting it.<a name="line.218"></a> -<span class="sourceLineNo">219</span> admin.deleteTable(MY_TABLE_NAME);<a name="line.219"></a> -<span class="sourceLineNo">220</span> }<a name="line.220"></a> -<span class="sourceLineNo">221</span> if (namespaceExists(admin, MY_NAMESPACE_NAME)) {<a name="line.221"></a> -<span class="sourceLineNo">222</span> System.out.println("Deleting Namespace [" + MY_NAMESPACE_NAME + "].");<a name="line.222"></a> -<span class="sourceLineNo">223</span> admin.deleteNamespace(MY_NAMESPACE_NAME);<a name="line.223"></a> -<span class="sourceLineNo">224</span> }<a name="line.224"></a> -<span class="sourceLineNo">225</span> }<a name="line.225"></a> -<span class="sourceLineNo">226</span>}<a name="line.226"></a> +<span class="sourceLineNo">154</span> Result row = table.get(new Get(MY_ROW_ID));<a name="line.154"></a> +<span class="sourceLineNo">155</span><a name="line.155"></a> +<span class="sourceLineNo">156</span> System.out.println("Row [" + Bytes.toString(row.getRow())<a name="line.156"></a> +<span class="sourceLineNo">157</span> + "] was retrieved from Table ["<a name="line.157"></a> +<span class="sourceLineNo">158</span> + table.getName().getNameAsString()<a name="line.158"></a> +<span class="sourceLineNo">159</span> + "] in HBase, with the following content:");<a name="line.159"></a> +<span class="sourceLineNo">160</span><a name="line.160"></a> +<span class="sourceLineNo">161</span> for (Entry<byte[], NavigableMap<byte[], byte[]>> colFamilyEntry<a name="line.161"></a> +<span class="sourceLineNo">162</span> : row.getNoVersionMap().entrySet()) {<a name="line.162"></a> +<span class="sourceLineNo">163</span> String columnFamilyName = Bytes.toString(colFamilyEntry.getKey());<a name="line.163"></a> +<span class="sourceLineNo">164</span><a name="line.164"></a> +<span class="sourceLineNo">165</span> System.out.println(" Columns in Column Family [" + columnFamilyName<a name="line.165"></a> +<span class="sourceLineNo">166</span> + "]:");<a name="line.166"></a> +<span class="sourceLineNo">167</span><a name="line.167"></a> +<span class="sourceLineNo">168</span> for (Entry<byte[], byte[]> columnNameAndValueMap<a name="line.168"></a> +<span class="sourceLineNo">169</span> : colFamilyEntry.getValue().entrySet()) {<a name="line.169"></a> +<span class="sourceLineNo">170</span><a name="line.170"></a> +<span class="sourceLineNo">171</span> System.out.println(" Value of Column [" + columnFamilyName + ":"<a name="line.171"></a> +<span class="sourceLineNo">172</span> + Bytes.toString(columnNameAndValueMap.getKey()) + "] == "<a name="line.172"></a> +<span class="sourceLineNo">173</span> + Bytes.toString(columnNameAndValueMap.getValue()));<a name="line.173"></a> +<span class="sourceLineNo">174</span> }<a name="line.174"></a> +<span class="sourceLineNo">175</span> }<a name="line.175"></a> +<span class="sourceLineNo">176</span> }<a name="line.176"></a> +<span class="sourceLineNo">177</span><a name="line.177"></a> +<span class="sourceLineNo">178</span> /**<a name="line.178"></a> +<span class="sourceLineNo">179</span> * Checks to see whether a namespace exists.<a name="line.179"></a> +<span class="sourceLineNo">180</span> *<a name="line.180"></a> +<span class="sourceLineNo">181</span> * @param admin Standard Admin object<a name="line.181"></a> +<span class="sourceLineNo">182</span> * @param namespaceName Name of namespace<a name="line.182"></a> +<span class="sourceLineNo">183</span> * @return true If namespace exists<a name="line.183"></a> +<span class="sourceLineNo">184</span> * @throws IOException If IO problem encountered<a name="line.184"></a> +<span class="sourceLineNo">185</span> */<a name="line.185"></a> +<span class="sourceLineNo">186</span> static boolean namespaceExists(final Admin admin, final String namespaceName)<a name="line.186"></a> +<span class="sourceLineNo">187</span> throws IOException {<a name="line.187"></a> +<span class="sourceLineNo">188</span> try {<a name="line.188"></a> +<span class="sourceLineNo">189</span> admin.getNamespaceDescriptor(namespaceName);<a name="line.189"></a> +<span class="sourceLineNo">190</span> } catch (NamespaceNotFoundException e) {<a name="line.190"></a> +<span class="sourceLineNo">191</span> return false;<a name="line.191"></a> +<span class="sourceLineNo">192</span> }<a name="line.192"></a> +<span class="sourceLineNo">193</span> return true;<a name="line.193"></a> +<span class="sourceLineNo">194</span> }<a name="line.194"></a> +<span class="sourceLineNo">195</span><a name="line.195"></a> +<span class="sourceLineNo">196</span> /**<a name="line.196"></a> +<span class="sourceLineNo">197</span> * Invokes Table#delete to delete test data (i.e. the row)<a name="line.197"></a> +<span class="sourceLineNo">198</span> *<a name="line.198"></a> +<span class="sourceLineNo">199</span> * @param table Standard Table object<a name="line.199"></a> +<span class="sourceLineNo">200</span> * @throws IOException If IO problem is encountered<a name="line.200"></a> +<span class="sourceLineNo">201</span> */<a name="line.201"></a> +<span class="sourceLineNo">202</span> static void deleteRow(final Table table) throws IOException {<a name="line.202"></a> +<span class="sourceLineNo">203</span> System.out.println("Deleting row [" + Bytes.toString(MY_ROW_ID)<a name="line.203"></a> +<span class="sourceLineNo">204</span> + "] from Table ["<a name="line.204"></a> +<span class="sourceLineNo">205</span> + table.getName().getNameAsString() + "].");<a name="line.205"></a> +<span class="sourceLineNo">206</span> table.delete(new Delete(MY_ROW_ID));<a name="line.206"></a> +<span class="sourceLineNo">207</span> }<a name="line.207"></a> +<span class="sourceLineNo">208</span><a name="line.208"></a> +<span class="sourceLineNo">209</span> /**<a name="line.209"></a> +<span class="sourceLineNo">210</span> * Invokes Admin#disableTable, Admin#deleteTable, and Admin#deleteNamespace to<a name="line.210"></a> +<span class="sourceLineNo">211</span> * disable/delete Table and delete Namespace.<a name="line.211"></a> +<span class="sourceLineNo">212</span> *<a name="line.212"></a> +<span class="sourceLineNo">213</span> * @param admin Standard Admin object<a name="line.213"></a> +<span class="sourceLineNo">214</span> * @throws IOException If IO problem is encountered<a name="line.214"></a> +<span class="sourceLineNo">215</span> */<a name="line.215"></a> +<span class="sourceLineNo">216</span> static void deleteNamespaceAndTable(final Admin admin) throws IOException {<a name="line.216"></a> +<span class="sourceLineNo">217</span> if (admin.tableExists(MY_TABLE_NAME)) {<a name="line.217"></a> +<span class="sourceLineNo">218</span> System.out.println("Disabling/deleting Table ["<a name="line.218"></a> +<span class="sourceLineNo">219</span> + MY_TABLE_NAME.getNameAsString() + "].");<a name="line.219"></a> +<span class="sourceLineNo">220</span> admin.disableTable(MY_TABLE_NAME); // Disable a table before deleting it.<a name="line.220"></a> +<span class="sourceLineNo">221</span> admin.deleteTable(MY_TABLE_NAME);<a name="line.221"></a> +<span class="sourceLineNo">222</span> }<a name="line.222"></a> +<span class="sourceLineNo">223</span> if (namespaceExists(admin, MY_NAMESPACE_NAME)) {<a name="line.223"></a> +<span class="sourceLineNo">224</span> System.out.println("Deleting Namespace [" + MY_NAMESPACE_NAME + "].");<a name="line.224"></a> +<span class="sourceLineNo">225</span> admin.deleteNamespace(MY_NAMESPACE_NAME);<a name="line.225"></a> +<span class="sourceLineNo">226</span> }<a name="line.226"></a> +<span class="sourceLineNo">227</span> }<a name="line.227"></a> +<span class="sourceLineNo">228</span>}<a name="line.228"></a>
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/e1eb0a07/export_control.html ---------------------------------------------------------------------- diff --git a/export_control.html b/export_control.html index 9d9da1b..7523db6 100644 --- a/export_control.html +++ b/export_control.html @@ -7,7 +7,7 @@ <head> <meta charset="UTF-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0" /> - <meta name="Date-Revision-yyyymmdd" content="20170903" /> + <meta name="Date-Revision-yyyymmdd" content="20170904" /> <meta http-equiv="Content-Language" content="en" /> <title>Apache HBase – Export Control @@ -336,7 +336,7 @@ for more details.</p> <a href="https://www.apache.org/";>The Apache Software Foundation</a>. All rights reserved. - <li id="publishDate" class="pull-right">Last Published: 2017-09-03</li> + <li id="publishDate" class="pull-right">Last Published: 2017-09-04</li> </p> </div> http://git-wip-us.apache.org/repos/asf/hbase-site/blob/e1eb0a07/hbase-build-configuration/dependencies.html ---------------------------------------------------------------------- diff --git a/hbase-build-configuration/dependencies.html b/hbase-build-configuration/dependencies.html index 60b077e..078d6d8 100644 --- a/hbase-build-configuration/dependencies.html +++ b/hbase-build-configuration/dependencies.html @@ -7,7 +7,7 @@ <head> <meta charset="UTF-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0" /> - <meta name="Date-Revision-yyyymmdd" content="20170903" /> + <meta name="Date-Revision-yyyymmdd" content="20170904" /> <meta http-equiv="Content-Language" content="en" /> <title>Apache HBase - Build Configuration – Project Dependencies</title> <link rel="stylesheet" href="./css/apache-maven-fluido-1.5-HBASE.min.css" /> @@ -272,7 +272,7 @@ <a href="https://www.apache.org/";>The Apache Software Foundation</a>. All rights reserved. - <li id="publishDate" class="pull-right">Last Published: 2017-09-03</li> + <li id="publishDate" class="pull-right">Last Published: 2017-09-04</li> </p> </div>
