From e6181c24124d97f2fbc932b8a68311e625463156 Mon Sep 17 00:00:00 2001
From: uzvkl <dennis.kobert@student.kit.edu>
Date: Tue, 11 Jun 2019 23:05:52 +0200
Subject: Move dsa related stuff to subfolder

---
 dsa/FireBase/Query/ParameterQuery.cs | 43 ++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 dsa/FireBase/Query/ParameterQuery.cs

(limited to 'dsa/FireBase/Query/ParameterQuery.cs')

diff --git a/dsa/FireBase/Query/ParameterQuery.cs b/dsa/FireBase/Query/ParameterQuery.cs
new file mode 100644
index 0000000..572224c
--- /dev/null
+++ b/dsa/FireBase/Query/ParameterQuery.cs
@@ -0,0 +1,43 @@
+using System;
+
+namespace Firebase.Database.Query
+{
+    /// <summary>
+    ///     Represents a parameter in firebase query, e.g. "?data=foo".
+    /// </summary>
+    public abstract class ParameterQuery : FirebaseQuery
+    {
+        private readonly Func<string> parameterFactory;
+        private readonly string separator;
+
+        /// <summary>
+        ///     Initializes a new instance of the <see cref="ParameterQuery" /> class.
+        /// </summary>
+        /// <param name="parent"> The parent of this query. </param>
+        /// <param name="parameterFactory"> The parameter. </param>
+        /// <param name="client"> The owning client. </param>
+        protected ParameterQuery(FirebaseQuery parent, Func<string> parameterFactory, FirebaseClient client)
+            : base(parent, client)
+        {
+            this.parameterFactory = parameterFactory;
+            separator = Parent is ChildQuery ? "?" : "&";
+        }
+
+        /// <summary>
+        ///     Build the url segment represented by this query.
+        /// </summary>
+        /// <param name="child"> The child. </param>
+        /// <returns> The <see cref="string" />. </returns>
+        protected override string BuildUrlSegment(FirebaseQuery child)
+        {
+            return $"{separator}{parameterFactory()}={BuildUrlParameter(child)}";
+        }
+
+        /// <summary>
+        ///     The build url parameter.
+        /// </summary>
+        /// <param name="child"> The child. </param>
+        /// <returns> The <see cref="string" />. </returns>
+        protected abstract string BuildUrlParameter(FirebaseQuery child);
+    }
+}
\ No newline at end of file
-- 
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