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<li class="navelem"><a class="el" href="dir_90ffdbabf412cfdffe6b2193e0ce938a.html">libxrpl</a></li><li class="navelem"><a class="el" href="dir_a59c1a58e5e6f521a28fe23865b09e68.html">nodestore</a></li><li class="navelem"><a class="el" href="dir_509b1885180aea226af5db0950f1932b.html">backend</a></li> </ul>
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<div class="headertitle"><div class="title">NullFactory.cpp</div></div>
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<div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="preprocessor">#include &lt;xrpl/nodestore/Factory.h&gt;</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="preprocessor">#include &lt;xrpl/nodestore/Manager.h&gt;</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span> </div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/memory.html">memory</a>&gt;</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span> </div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespacexrpl.html">xrpl</a> {</div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="keyword">namespace </span>NodeStore {</div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span> </div>
<div class="foldopen" id="foldopen00009" data-start="{" data-end="};">
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"><a class="line" href="classxrpl_1_1NodeStore_1_1NullBackend.html"> 9</a></span><span class="keyword">class </span><a class="code hl_class" href="classxrpl_1_1NodeStore_1_1NullBackend.html">NullBackend</a> : <span class="keyword">public</span> <a class="code hl_class" href="classxrpl_1_1NodeStore_1_1Backend.html">Backend</a></div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span>{</div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="keyword">public</span>:</div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"><a class="line" href="classxrpl_1_1NodeStore_1_1NullBackend.html#a9acdee69fca788319f3d3f6e6b90a549"> 12</a></span> <a class="code hl_function" href="classxrpl_1_1NodeStore_1_1NullBackend.html#a9acdee69fca788319f3d3f6e6b90a549">NullBackend</a>() = <span class="keywordflow">default</span>;</div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span> </div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"><a class="line" href="classxrpl_1_1NodeStore_1_1NullBackend.html#af9070f7248f3bf9c6fd8199a094549d1"> 14</a></span> <a class="code hl_function" href="classxrpl_1_1NodeStore_1_1NullBackend.html#af9070f7248f3bf9c6fd8199a094549d1">~NullBackend</a>() = <span class="keywordflow">default</span>;</div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span> </div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a></div>
<div class="foldopen" id="foldopen00017" data-start="{" data-end="}">
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"><a class="line" href="classxrpl_1_1NodeStore_1_1NullBackend.html#aabf1e9c42f03476e38f2ea6a1b11c03d"> 17</a></span> <a class="code hl_function" href="classxrpl_1_1NodeStore_1_1NullBackend.html#aabf1e9c42f03476e38f2ea6a1b11c03d">getName</a>()<span class="keyword"> override</span></div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="keyword"> </span>{</div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span> <span class="keywordflow">return</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a>();</div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span> }</div>
</div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span> </div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span> <span class="keywordtype">void</span></div>
<div class="foldopen" id="foldopen00023" data-start="{" data-end="}">
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"><a class="line" href="classxrpl_1_1NodeStore_1_1NullBackend.html#a76b3a7685d2f9b03f90a6b4438e12831"> 23</a></span> <a class="code hl_function" href="classxrpl_1_1NodeStore_1_1NullBackend.html#a76b3a7685d2f9b03f90a6b4438e12831">open</a>(<span class="keywordtype">bool</span> createIfMissing)<span class="keyword"> override</span></div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span><span class="keyword"> </span>{</div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span> }</div>
</div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span> </div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span> <span class="keywordtype">bool</span></div>
<div class="foldopen" id="foldopen00028" data-start="{" data-end="}">
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"><a class="line" href="classxrpl_1_1NodeStore_1_1NullBackend.html#a3b0eec6c84e8204058b051f0965cf2d4"> 28</a></span> <a class="code hl_function" href="classxrpl_1_1NodeStore_1_1NullBackend.html#a3b0eec6c84e8204058b051f0965cf2d4">isOpen</a>()<span class="keyword"> override</span></div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span><span class="keyword"> </span>{</div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span> }</div>
</div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span> </div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> <span class="keywordtype">void</span></div>
<div class="foldopen" id="foldopen00034" data-start="{" data-end="}">
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"><a class="line" href="classxrpl_1_1NodeStore_1_1NullBackend.html#a64c8039a84e3e6b3699ee73b9fcb40e0"> 34</a></span> <a class="code hl_function" href="classxrpl_1_1NodeStore_1_1NullBackend.html#a64c8039a84e3e6b3699ee73b9fcb40e0">close</a>()<span class="keyword"> override</span></div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span><span class="keyword"> </span>{</div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> }</div>
</div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> </div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> <a class="code hl_enumeration" href="namespacexrpl_1_1NodeStore.html#a4883b8bc797bf7591fde489676a6e96b">Status</a></div>
<div class="foldopen" id="foldopen00039" data-start="{" data-end="}">
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"><a class="line" href="classxrpl_1_1NodeStore_1_1NullBackend.html#a7e02ece54ecb5ed22bbb45ed63dfaae8"> 39</a></span> <a class="code hl_function" href="classxrpl_1_1NodeStore_1_1NullBackend.html#a7e02ece54ecb5ed22bbb45ed63dfaae8">fetch</a>(<span class="keywordtype">void</span> <span class="keyword">const</span>*, <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/memory/shared_ptr.html">std::shared_ptr&lt;NodeObject&gt;</a>*)<span class="keyword"> override</span></div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span><span class="keyword"> </span>{</div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> <span class="keywordflow">return</span> <a class="code hl_enumvalue" href="namespacexrpl_1_1NodeStore.html#a4883b8bc797bf7591fde489676a6e96ba42539583967afeb33b55afda69c39b09">notFound</a>;</div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> }</div>
</div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> </div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/utility/pair.html">std::pair&lt;std::vector&lt;std::shared_ptr&lt;NodeObject&gt;</a>&gt;, <a class="code hl_enumeration" href="namespacexrpl_1_1NodeStore.html#a4883b8bc797bf7591fde489676a6e96b">Status</a>&gt;</div>
<div class="foldopen" id="foldopen00045" data-start="{" data-end="}">
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"><a class="line" href="classxrpl_1_1NodeStore_1_1NullBackend.html#ab423f84c68bae2aaaadf23c3277db36c"> 45</a></span> <a class="code hl_function" href="classxrpl_1_1NodeStore_1_1NullBackend.html#ab423f84c68bae2aaaadf23c3277db36c">fetchBatch</a>(<a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector&lt;uint256 const*&gt;</a> <span class="keyword">const</span>&amp; hashes)<span class="keyword"> override</span></div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span><span class="keyword"> </span>{</div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> <span class="keywordflow">return</span> {};</div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> }</div>
</div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> </div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> <span class="keywordtype">void</span></div>
<div class="foldopen" id="foldopen00051" data-start="{" data-end="}">
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"><a class="line" href="classxrpl_1_1NodeStore_1_1NullBackend.html#adf47da8a5f2aab7ee286695dabb7e8f4"> 51</a></span> <a class="code hl_function" href="classxrpl_1_1NodeStore_1_1NullBackend.html#adf47da8a5f2aab7ee286695dabb7e8f4">store</a>(<a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/memory/shared_ptr.html">std::shared_ptr&lt;NodeObject&gt;</a> <span class="keyword">const</span>&amp; <span class="keywordtype">object</span>)<span class="keyword"> override</span></div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span><span class="keyword"> </span>{</div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> }</div>
</div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> </div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> <span class="keywordtype">void</span></div>
<div class="foldopen" id="foldopen00056" data-start="{" data-end="}">
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"><a class="line" href="classxrpl_1_1NodeStore_1_1NullBackend.html#a510c10c16bc17a573bb5072b7ea9769d"> 56</a></span> <a class="code hl_function" href="classxrpl_1_1NodeStore_1_1NullBackend.html#a510c10c16bc17a573bb5072b7ea9769d">storeBatch</a>(<a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/container/vector.html">Batch</a> <span class="keyword">const</span>&amp; <a class="code hl_enumvalue" href="namespacexrpl.html#ac599741e6d4066bada11df4c7e8ad30aad265aed699f7409ac0ec6fe07ee9cb11">batch</a>)<span class="keyword"> override</span></div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span><span class="keyword"> </span>{</div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> }</div>
</div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> </div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> <span class="keywordtype">void</span></div>
<div class="foldopen" id="foldopen00061" data-start="{" data-end="}">
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"><a class="line" href="classxrpl_1_1NodeStore_1_1NullBackend.html#a04f3438114da44e48f84ef2d70139472"> 61</a></span> <a class="code hl_function" href="classxrpl_1_1NodeStore_1_1NullBackend.html#a04f3438114da44e48f84ef2d70139472">sync</a>()<span class="keyword"> override</span></div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span><span class="keyword"> </span>{</div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> }</div>
</div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> </div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> <span class="keywordtype">void</span></div>
<div class="foldopen" id="foldopen00066" data-start="{" data-end="}">
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"><a class="line" href="classxrpl_1_1NodeStore_1_1NullBackend.html#a132c1d711adef1773072c5b7576efb9a"> 66</a></span> <a class="code hl_function" href="classxrpl_1_1NodeStore_1_1NullBackend.html#a132c1d711adef1773072c5b7576efb9a">for_each</a>(<a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/utility/functional/function.html">std::function</a>&lt;<span class="keywordtype">void</span>(<a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/memory/shared_ptr.html">std::shared_ptr&lt;NodeObject&gt;</a>)&gt; f)<span class="keyword"> override</span></div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span><span class="keyword"> </span>{</div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> }</div>
</div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> </div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> <span class="keywordtype">int</span></div>
<div class="foldopen" id="foldopen00071" data-start="{" data-end="}">
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"><a class="line" href="classxrpl_1_1NodeStore_1_1NullBackend.html#a6cbe787c59dae6575a26b2ce717428f0"> 71</a></span> <a class="code hl_function" href="classxrpl_1_1NodeStore_1_1NullBackend.html#a6cbe787c59dae6575a26b2ce717428f0">getWriteLoad</a>()<span class="keyword"> override</span></div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span><span class="keyword"> </span>{</div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> }</div>
</div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> </div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> <span class="keywordtype">void</span></div>
<div class="foldopen" id="foldopen00077" data-start="{" data-end="}">
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"><a class="line" href="classxrpl_1_1NodeStore_1_1NullBackend.html#aab101e2998175ae3c5989c03bde5e0be"> 77</a></span> <a class="code hl_function" href="classxrpl_1_1NodeStore_1_1NullBackend.html#aab101e2998175ae3c5989c03bde5e0be">setDeletePath</a>()<span class="keyword"> override</span></div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span><span class="keyword"> </span>{</div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> }</div>
</div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> </div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> <span class="keywordtype">int</span></div>
<div class="foldopen" id="foldopen00083" data-start="{" data-end="}">
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"><a class="line" href="classxrpl_1_1NodeStore_1_1NullBackend.html#a1b5819876cc2ee5a23dcbea6a63f9962"> 83</a></span> <a class="code hl_function" href="classxrpl_1_1NodeStore_1_1NullBackend.html#a1b5819876cc2ee5a23dcbea6a63f9962">fdRequired</a>()<span class="keyword"> const override</span></div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span><span class="keyword"> </span>{</div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> }</div>
</div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> </div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span><span class="keyword">private</span>:</div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span>};</div>
</div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> </div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span><span class="comment">//------------------------------------------------------------------------------</span></div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> </div>
<div class="foldopen" id="foldopen00093" data-start="{" data-end="};">
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"><a class="line" href="classxrpl_1_1NodeStore_1_1NullFactory.html"> 93</a></span><span class="keyword">class </span><a class="code hl_class" href="classxrpl_1_1NodeStore_1_1NullFactory.html">NullFactory</a> : <span class="keyword">public</span> <a class="code hl_class" href="classxrpl_1_1NodeStore_1_1Factory.html">Factory</a></div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span>{</div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span><span class="keyword">private</span>:</div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"><a class="line" href="classxrpl_1_1NodeStore_1_1NullFactory.html#a401dff68f2838d729d85d29973237302"> 96</a></span> <a class="code hl_class" href="classxrpl_1_1NodeStore_1_1Manager.html">Manager</a>&amp; <a class="code hl_variable" href="classxrpl_1_1NodeStore_1_1NullFactory.html#a401dff68f2838d729d85d29973237302">manager_</a>;</div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> </div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span><span class="keyword">public</span>:</div>
<div class="foldopen" id="foldopen00099" data-start="{" data-end="}">
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"><a class="line" href="classxrpl_1_1NodeStore_1_1NullFactory.html#aacd5c4b9e8f8a46bcc8efa123850f989"> 99</a></span> <span class="keyword">explicit</span> <a class="code hl_function" href="classxrpl_1_1NodeStore_1_1NullFactory.html#aacd5c4b9e8f8a46bcc8efa123850f989">NullFactory</a>(<a class="code hl_class" href="classxrpl_1_1NodeStore_1_1Manager.html">Manager</a>&amp; manager) : <a class="code hl_variable" href="classxrpl_1_1NodeStore_1_1NullFactory.html#a401dff68f2838d729d85d29973237302">manager_</a>(manager)</div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> {</div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> <a class="code hl_variable" href="classxrpl_1_1NodeStore_1_1NullFactory.html#a401dff68f2838d729d85d29973237302">manager_</a>.<a class="code hl_function" href="classxrpl_1_1NodeStore_1_1Manager.html#a5b840e7a0b511094e42ea014cb6de75c">insert</a>(*<span class="keyword">this</span>);</div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> }</div>
</div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> </div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a></div>
<div class="foldopen" id="foldopen00105" data-start="{" data-end="}">
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"><a class="line" href="classxrpl_1_1NodeStore_1_1NullFactory.html#adaf5573ad1e15dc95e136fdd0fef4b81"> 105</a></span> <a class="code hl_function" href="classxrpl_1_1NodeStore_1_1NullFactory.html#adaf5573ad1e15dc95e136fdd0fef4b81">getName</a>()<span class="keyword"> const override</span></div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span><span class="keyword"> </span>{</div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> <span class="keywordflow">return</span> <span class="stringliteral">&quot;none&quot;</span>;</div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> }</div>
</div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> </div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/memory/unique_ptr.html">std::unique_ptr&lt;Backend&gt;</a></div>
<div class="foldopen" id="foldopen00111" data-start="{" data-end="}">
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"><a class="line" href="classxrpl_1_1NodeStore_1_1NullFactory.html#a30aeee470a778584d3ed4fe489163e84"> 111</a></span> <a class="code hl_function" href="classxrpl_1_1NodeStore_1_1NullFactory.html#a30aeee470a778584d3ed4fe489163e84">createInstance</a>(<span class="keywordtype">size_t</span>, <a class="code hl_class" href="classxrpl_1_1Section.html">Section</a> <span class="keyword">const</span>&amp;, <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a>, <a class="code hl_class" href="classxrpl_1_1NodeStore_1_1Scheduler.html">Scheduler</a>&amp;, <a class="code hl_class" href="classbeast_1_1Journal.html">beast::Journal</a>)<span class="keyword"> override</span></div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span><span class="keyword"> </span>{</div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> <span class="keywordflow">return</span> <a class="code hl_variableRef" href="http://en.cppreference.com/w/cpp/types/is_same.html">std::make_unique&lt;NullBackend&gt;</a>();</div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> }</div>
</div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span>};</div>
</div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> </div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span><span class="keywordtype">void</span></div>
<div class="foldopen" id="foldopen00118" data-start="{" data-end="}">
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"><a class="line" href="namespacexrpl_1_1NodeStore.html#a167cc153577a7e247b3539924b4ebe31"> 118</a></span><a class="code hl_function" href="namespacexrpl_1_1NodeStore.html#a167cc153577a7e247b3539924b4ebe31">registerNullFactory</a>(<a class="code hl_class" href="classxrpl_1_1NodeStore_1_1Manager.html">Manager</a>&amp; manager)</div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span>{</div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> <span class="keyword">static</span> <a class="code hl_class" href="classxrpl_1_1NodeStore_1_1NullFactory.html">NullFactory</a> instance{manager};</div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span>}</div>
</div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> </div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span>} <span class="comment">// namespace NodeStore</span></div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span>} <span class="comment">// namespace xrpl</span></div>
<div class="ttc" id="abasic_string_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a></div></div>
<div class="ttc" id="aclassbeast_1_1Journal_html"><div class="ttname"><a href="classbeast_1_1Journal.html">beast::Journal</a></div><div class="ttdoc">A generic endpoint for log messages.</div><div class="ttdef"><b>Definition</b> <a href="Journal_8h_source.html#l00040">Journal.h:41</a></div></div>
<div class="ttc" id="aclassxrpl_1_1NodeStore_1_1Backend_html"><div class="ttname"><a href="classxrpl_1_1NodeStore_1_1Backend.html">xrpl::NodeStore::Backend</a></div><div class="ttdoc">A backend used for the NodeStore.</div><div class="ttdef"><b>Definition</b> <a href="Backend_8h_source.html#l00020">Backend.h:21</a></div></div>
<div class="ttc" id="aclassxrpl_1_1NodeStore_1_1Factory_html"><div class="ttname"><a href="classxrpl_1_1NodeStore_1_1Factory.html">xrpl::NodeStore::Factory</a></div><div class="ttdoc">Base class for backend factories.</div><div class="ttdef"><b>Definition</b> <a href="Factory_8h_source.html#l00016">Factory.h:17</a></div></div>
<div class="ttc" id="aclassxrpl_1_1NodeStore_1_1Manager_html"><div class="ttname"><a href="classxrpl_1_1NodeStore_1_1Manager.html">xrpl::NodeStore::Manager</a></div><div class="ttdoc">Singleton for managing NodeStore factories and back ends.</div><div class="ttdef"><b>Definition</b> <a href="Manager_8h_source.html#l00012">Manager.h:13</a></div></div>
<div class="ttc" id="aclassxrpl_1_1NodeStore_1_1Manager_html_a5b840e7a0b511094e42ea014cb6de75c"><div class="ttname"><a href="classxrpl_1_1NodeStore_1_1Manager.html#a5b840e7a0b511094e42ea014cb6de75c">xrpl::NodeStore::Manager::insert</a></div><div class="ttdeci">virtual void insert(Factory &amp;factory)=0</div><div class="ttdoc">Add a factory.</div></div>
<div class="ttc" id="aclassxrpl_1_1NodeStore_1_1NullBackend_html"><div class="ttname"><a href="classxrpl_1_1NodeStore_1_1NullBackend.html">xrpl::NodeStore::NullBackend</a></div><div class="ttdef"><b>Definition</b> <a href="NullFactory_8cpp_source.html#l00009">NullFactory.cpp:10</a></div></div>
<div class="ttc" id="aclassxrpl_1_1NodeStore_1_1NullBackend_html_a04f3438114da44e48f84ef2d70139472"><div class="ttname"><a href="classxrpl_1_1NodeStore_1_1NullBackend.html#a04f3438114da44e48f84ef2d70139472">xrpl::NodeStore::NullBackend::sync</a></div><div class="ttdeci">void sync() override</div><div class="ttdef"><b>Definition</b> <a href="NullFactory_8cpp_source.html#l00061">NullFactory.cpp:61</a></div></div>
<div class="ttc" id="aclassxrpl_1_1NodeStore_1_1NullBackend_html_a132c1d711adef1773072c5b7576efb9a"><div class="ttname"><a href="classxrpl_1_1NodeStore_1_1NullBackend.html#a132c1d711adef1773072c5b7576efb9a">xrpl::NodeStore::NullBackend::for_each</a></div><div class="ttdeci">void for_each(std::function&lt; void(std::shared_ptr&lt; NodeObject &gt;)&gt; f) override</div><div class="ttdoc">Visit every object in the database This is usually called during import.</div><div class="ttdef"><b>Definition</b> <a href="NullFactory_8cpp_source.html#l00066">NullFactory.cpp:66</a></div></div>
<div class="ttc" id="aclassxrpl_1_1NodeStore_1_1NullBackend_html_a1b5819876cc2ee5a23dcbea6a63f9962"><div class="ttname"><a href="classxrpl_1_1NodeStore_1_1NullBackend.html#a1b5819876cc2ee5a23dcbea6a63f9962">xrpl::NodeStore::NullBackend::fdRequired</a></div><div class="ttdeci">int fdRequired() const override</div><div class="ttdoc">Returns the number of file descriptors the backend expects to need.</div><div class="ttdef"><b>Definition</b> <a href="NullFactory_8cpp_source.html#l00083">NullFactory.cpp:83</a></div></div>
<div class="ttc" id="aclassxrpl_1_1NodeStore_1_1NullBackend_html_a3b0eec6c84e8204058b051f0965cf2d4"><div class="ttname"><a href="classxrpl_1_1NodeStore_1_1NullBackend.html#a3b0eec6c84e8204058b051f0965cf2d4">xrpl::NodeStore::NullBackend::isOpen</a></div><div class="ttdeci">bool isOpen() override</div><div class="ttdoc">Returns true is the database is open.</div><div class="ttdef"><b>Definition</b> <a href="NullFactory_8cpp_source.html#l00028">NullFactory.cpp:28</a></div></div>
<div class="ttc" id="aclassxrpl_1_1NodeStore_1_1NullBackend_html_a510c10c16bc17a573bb5072b7ea9769d"><div class="ttname"><a href="classxrpl_1_1NodeStore_1_1NullBackend.html#a510c10c16bc17a573bb5072b7ea9769d">xrpl::NodeStore::NullBackend::storeBatch</a></div><div class="ttdeci">void storeBatch(Batch const &amp;batch) override</div><div class="ttdoc">Store a group of objects.</div><div class="ttdef"><b>Definition</b> <a href="NullFactory_8cpp_source.html#l00056">NullFactory.cpp:56</a></div></div>
<div class="ttc" id="aclassxrpl_1_1NodeStore_1_1NullBackend_html_a64c8039a84e3e6b3699ee73b9fcb40e0"><div class="ttname"><a href="classxrpl_1_1NodeStore_1_1NullBackend.html#a64c8039a84e3e6b3699ee73b9fcb40e0">xrpl::NodeStore::NullBackend::close</a></div><div class="ttdeci">void close() override</div><div class="ttdoc">Close the backend.</div><div class="ttdef"><b>Definition</b> <a href="NullFactory_8cpp_source.html#l00034">NullFactory.cpp:34</a></div></div>
<div class="ttc" id="aclassxrpl_1_1NodeStore_1_1NullBackend_html_a6cbe787c59dae6575a26b2ce717428f0"><div class="ttname"><a href="classxrpl_1_1NodeStore_1_1NullBackend.html#a6cbe787c59dae6575a26b2ce717428f0">xrpl::NodeStore::NullBackend::getWriteLoad</a></div><div class="ttdeci">int getWriteLoad() override</div><div class="ttdoc">Estimate the number of write operations pending.</div><div class="ttdef"><b>Definition</b> <a href="NullFactory_8cpp_source.html#l00071">NullFactory.cpp:71</a></div></div>
<div class="ttc" id="aclassxrpl_1_1NodeStore_1_1NullBackend_html_a76b3a7685d2f9b03f90a6b4438e12831"><div class="ttname"><a href="classxrpl_1_1NodeStore_1_1NullBackend.html#a76b3a7685d2f9b03f90a6b4438e12831">xrpl::NodeStore::NullBackend::open</a></div><div class="ttdeci">void open(bool createIfMissing) override</div><div class="ttdoc">Open the backend.</div><div class="ttdef"><b>Definition</b> <a href="NullFactory_8cpp_source.html#l00023">NullFactory.cpp:23</a></div></div>
<div class="ttc" id="aclassxrpl_1_1NodeStore_1_1NullBackend_html_a7e02ece54ecb5ed22bbb45ed63dfaae8"><div class="ttname"><a href="classxrpl_1_1NodeStore_1_1NullBackend.html#a7e02ece54ecb5ed22bbb45ed63dfaae8">xrpl::NodeStore::NullBackend::fetch</a></div><div class="ttdeci">Status fetch(void const *, std::shared_ptr&lt; NodeObject &gt; *) override</div><div class="ttdoc">Fetch a single object.</div><div class="ttdef"><b>Definition</b> <a href="NullFactory_8cpp_source.html#l00039">NullFactory.cpp:39</a></div></div>
<div class="ttc" id="aclassxrpl_1_1NodeStore_1_1NullBackend_html_a9acdee69fca788319f3d3f6e6b90a549"><div class="ttname"><a href="classxrpl_1_1NodeStore_1_1NullBackend.html#a9acdee69fca788319f3d3f6e6b90a549">xrpl::NodeStore::NullBackend::NullBackend</a></div><div class="ttdeci">NullBackend()=default</div></div>
<div class="ttc" id="aclassxrpl_1_1NodeStore_1_1NullBackend_html_aab101e2998175ae3c5989c03bde5e0be"><div class="ttname"><a href="classxrpl_1_1NodeStore_1_1NullBackend.html#aab101e2998175ae3c5989c03bde5e0be">xrpl::NodeStore::NullBackend::setDeletePath</a></div><div class="ttdeci">void setDeletePath() override</div><div class="ttdoc">Remove contents on disk upon destruction.</div><div class="ttdef"><b>Definition</b> <a href="NullFactory_8cpp_source.html#l00077">NullFactory.cpp:77</a></div></div>
<div class="ttc" id="aclassxrpl_1_1NodeStore_1_1NullBackend_html_aabf1e9c42f03476e38f2ea6a1b11c03d"><div class="ttname"><a href="classxrpl_1_1NodeStore_1_1NullBackend.html#aabf1e9c42f03476e38f2ea6a1b11c03d">xrpl::NodeStore::NullBackend::getName</a></div><div class="ttdeci">std::string getName() override</div><div class="ttdoc">Get the human-readable name of this backend.</div><div class="ttdef"><b>Definition</b> <a href="NullFactory_8cpp_source.html#l00017">NullFactory.cpp:17</a></div></div>
<div class="ttc" id="aclassxrpl_1_1NodeStore_1_1NullBackend_html_ab423f84c68bae2aaaadf23c3277db36c"><div class="ttname"><a href="classxrpl_1_1NodeStore_1_1NullBackend.html#ab423f84c68bae2aaaadf23c3277db36c">xrpl::NodeStore::NullBackend::fetchBatch</a></div><div class="ttdeci">std::pair&lt; std::vector&lt; std::shared_ptr&lt; NodeObject &gt; &gt;, Status &gt; fetchBatch(std::vector&lt; uint256 const * &gt; const &amp;hashes) override</div><div class="ttdoc">Fetch a batch synchronously.</div><div class="ttdef"><b>Definition</b> <a href="NullFactory_8cpp_source.html#l00045">NullFactory.cpp:45</a></div></div>
<div class="ttc" id="aclassxrpl_1_1NodeStore_1_1NullBackend_html_adf47da8a5f2aab7ee286695dabb7e8f4"><div class="ttname"><a href="classxrpl_1_1NodeStore_1_1NullBackend.html#adf47da8a5f2aab7ee286695dabb7e8f4">xrpl::NodeStore::NullBackend::store</a></div><div class="ttdeci">void store(std::shared_ptr&lt; NodeObject &gt; const &amp;object) override</div><div class="ttdoc">Store a single object.</div><div class="ttdef"><b>Definition</b> <a href="NullFactory_8cpp_source.html#l00051">NullFactory.cpp:51</a></div></div>
<div class="ttc" id="aclassxrpl_1_1NodeStore_1_1NullBackend_html_af9070f7248f3bf9c6fd8199a094549d1"><div class="ttname"><a href="classxrpl_1_1NodeStore_1_1NullBackend.html#af9070f7248f3bf9c6fd8199a094549d1">xrpl::NodeStore::NullBackend::~NullBackend</a></div><div class="ttdeci">~NullBackend()=default</div></div>
<div class="ttc" id="aclassxrpl_1_1NodeStore_1_1NullFactory_html"><div class="ttname"><a href="classxrpl_1_1NodeStore_1_1NullFactory.html">xrpl::NodeStore::NullFactory</a></div><div class="ttdef"><b>Definition</b> <a href="NullFactory_8cpp_source.html#l00093">NullFactory.cpp:94</a></div></div>
<div class="ttc" id="aclassxrpl_1_1NodeStore_1_1NullFactory_html_a30aeee470a778584d3ed4fe489163e84"><div class="ttname"><a href="classxrpl_1_1NodeStore_1_1NullFactory.html#a30aeee470a778584d3ed4fe489163e84">xrpl::NodeStore::NullFactory::createInstance</a></div><div class="ttdeci">std::unique_ptr&lt; Backend &gt; createInstance(size_t, Section const &amp;, std::size_t, Scheduler &amp;, beast::Journal) override</div><div class="ttdoc">Create an instance of this factory's backend.</div><div class="ttdef"><b>Definition</b> <a href="NullFactory_8cpp_source.html#l00111">NullFactory.cpp:111</a></div></div>
<div class="ttc" id="aclassxrpl_1_1NodeStore_1_1NullFactory_html_a401dff68f2838d729d85d29973237302"><div class="ttname"><a href="classxrpl_1_1NodeStore_1_1NullFactory.html#a401dff68f2838d729d85d29973237302">xrpl::NodeStore::NullFactory::manager_</a></div><div class="ttdeci">Manager &amp; manager_</div><div class="ttdef"><b>Definition</b> <a href="NullFactory_8cpp_source.html#l00096">NullFactory.cpp:96</a></div></div>
<div class="ttc" id="aclassxrpl_1_1NodeStore_1_1NullFactory_html_aacd5c4b9e8f8a46bcc8efa123850f989"><div class="ttname"><a href="classxrpl_1_1NodeStore_1_1NullFactory.html#aacd5c4b9e8f8a46bcc8efa123850f989">xrpl::NodeStore::NullFactory::NullFactory</a></div><div class="ttdeci">NullFactory(Manager &amp;manager)</div><div class="ttdef"><b>Definition</b> <a href="NullFactory_8cpp_source.html#l00099">NullFactory.cpp:99</a></div></div>
<div class="ttc" id="aclassxrpl_1_1NodeStore_1_1NullFactory_html_adaf5573ad1e15dc95e136fdd0fef4b81"><div class="ttname"><a href="classxrpl_1_1NodeStore_1_1NullFactory.html#adaf5573ad1e15dc95e136fdd0fef4b81">xrpl::NodeStore::NullFactory::getName</a></div><div class="ttdeci">std::string getName() const override</div><div class="ttdoc">Retrieve the name of this factory.</div><div class="ttdef"><b>Definition</b> <a href="NullFactory_8cpp_source.html#l00105">NullFactory.cpp:105</a></div></div>
<div class="ttc" id="aclassxrpl_1_1NodeStore_1_1Scheduler_html"><div class="ttname"><a href="classxrpl_1_1NodeStore_1_1Scheduler.html">xrpl::NodeStore::Scheduler</a></div><div class="ttdoc">Scheduling for asynchronous backend activity.</div><div class="ttdef"><b>Definition</b> <a href="include_2xrpl_2nodestore_2Scheduler_8h_source.html#l00042">include/xrpl/nodestore/Scheduler.h:43</a></div></div>
<div class="ttc" id="aclassxrpl_1_1Section_html"><div class="ttname"><a href="classxrpl_1_1Section.html">xrpl::Section</a></div><div class="ttdoc">Holds a collection of configuration values.</div><div class="ttdef"><b>Definition</b> <a href="BasicConfig_8h_source.html#l00024">BasicConfig.h:25</a></div></div>
<div class="ttc" id="afunction_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/utility/functional/function.html">std::function</a></div></div>
<div class="ttc" id="ais_same_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/types/is_same.html">std::is_same_v</a></div><div class="ttdeci">T is_same_v</div></div>
<div class="ttc" id="amemory_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/header/memory.html">memory</a></div></div>
<div class="ttc" id="anamespacexrpl_1_1NodeStore_html_a167cc153577a7e247b3539924b4ebe31"><div class="ttname"><a href="namespacexrpl_1_1NodeStore.html#a167cc153577a7e247b3539924b4ebe31">xrpl::NodeStore::registerNullFactory</a></div><div class="ttdeci">void registerNullFactory(Manager &amp;manager)</div><div class="ttdef"><b>Definition</b> <a href="NullFactory_8cpp_source.html#l00118">NullFactory.cpp:118</a></div></div>
<div class="ttc" id="anamespacexrpl_1_1NodeStore_html_a4883b8bc797bf7591fde489676a6e96b"><div class="ttname"><a href="namespacexrpl_1_1NodeStore.html#a4883b8bc797bf7591fde489676a6e96b">xrpl::NodeStore::Status</a></div><div class="ttdeci">Status</div><div class="ttdoc">Return codes from Backend operations.</div><div class="ttdef"><b>Definition</b> <a href="nodestore_2Types_8h_source.html#l00025">nodestore/Types.h:25</a></div></div>
<div class="ttc" id="anamespacexrpl_1_1NodeStore_html_a4883b8bc797bf7591fde489676a6e96ba42539583967afeb33b55afda69c39b09"><div class="ttname"><a href="namespacexrpl_1_1NodeStore.html#a4883b8bc797bf7591fde489676a6e96ba42539583967afeb33b55afda69c39b09">xrpl::NodeStore::notFound</a></div><div class="ttdeci">@ notFound</div><div class="ttdef"><b>Definition</b> <a href="nodestore_2Types_8h_source.html#l00027">nodestore/Types.h:27</a></div></div>
<div class="ttc" id="anamespacexrpl_html"><div class="ttname"><a href="namespacexrpl.html">xrpl</a></div><div class="ttdoc">Use hash_* containers for keys that do not need a cryptographically secure hashing algorithm.</div><div class="ttdef"><b>Definition</b> <a href="algorithm_8h_source.html#l00006">algorithm.h:6</a></div></div>
<div class="ttc" id="anamespacexrpl_html_ac599741e6d4066bada11df4c7e8ad30aad265aed699f7409ac0ec6fe07ee9cb11"><div class="ttname"><a href="namespacexrpl.html#ac599741e6d4066bada11df4c7e8ad30aad265aed699f7409ac0ec6fe07ee9cb11">xrpl::HashPrefix::batch</a></div><div class="ttdeci">@ batch</div><div class="ttdoc">Batch.</div></div>
<div class="ttc" id="apair_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/utility/pair.html">std::pair</a></div></div>
<div class="ttc" id="ashared_ptr_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/memory/shared_ptr.html">std::shared_ptr</a></div></div>
<div class="ttc" id="asize_t_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a></div></div>
<div class="ttc" id="aunique_ptr_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/memory/unique_ptr.html">std::unique_ptr</a></div></div>
<div class="ttc" id="avector_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector</a></div></div>
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