diff --git a/.idea/checkstyle-idea.xml b/.idea/checkstyle-idea.xml
index 9950095..cec0567 100644
--- a/.idea/checkstyle-idea.xml
+++ b/.idea/checkstyle-idea.xml
@@ -1,15 +1,35 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="CheckStyle-IDEA" serialisationVersion="2">
-    <checkstyleVersion>13.0.0</checkstyleVersion>
-    <scanScope>JavaOnly</scanScope>
+    <checkstyleVersion>13.1.0</checkstyleVersion>
+    <scanScope>JavaOnlyWithTests</scanScope>
+    <suppressErrors>true</suppressErrors>
     <copyLibs>true</copyLibs>
     <option name="thirdPartyClasspath" />
-    <option name="activeLocationIds" />
+    <option name="activeLocationIds">
+      <option value="bundled-google-checks" />
+    </option>
     <option name="locations">
       <list>
-        <ConfigurationLocation id="bundled-sun-checks" type="BUNDLED" scope="All" description="Sun Checks">(bundled)</ConfigurationLocation>
-        <ConfigurationLocation id="bundled-google-checks" type="BUNDLED" scope="All" description="Google Checks">(bundled)</ConfigurationLocation>
+        <ConfigurationLocation id="bundled-sun-checks" type="BUNDLED" scope="All" description="Sun Checks">
+          (bundled)
+          <option name="properties">
+            <map>
+              <entry key="org.checkstyle.sun.suppressionfilter.config" value="checkstyle-suppressions.xml" />
+              <entry key="org.checkstyle.sun.suppressionxpathfilter.config" value="checkstyle-xpath-suppressions.xml" />
+            </map>
+          </option>
+        </ConfigurationLocation>
+        <ConfigurationLocation id="bundled-google-checks" type="BUNDLED" scope="All" description="Google Checks">
+          (bundled)
+          <option name="properties">
+            <map>
+              <entry key="org.checkstyle.google.severity" value="warning" />
+              <entry key="org.checkstyle.google.suppressionfilter.config" value="checkstyle-suppressions.xml" />
+              <entry key="org.checkstyle.google.suppressionxpathfilter.config" value="checkstyle-xpath-suppressions.xml" />
+            </map>
+          </option>
+        </ConfigurationLocation>
       </list>
     </option>
   </component>
diff --git a/src/main/java/edu/ntnu/idi/idatt2003/g40/mappe/Transaction.java b/src/main/java/edu/ntnu/idi/idatt2003/g40/mappe/Transaction.java
index e69de29..4030335 100644
--- a/src/main/java/edu/ntnu/idi/idatt2003/g40/mappe/Transaction.java
+++ b/src/main/java/edu/ntnu/idi/idatt2003/g40/mappe/Transaction.java
@@ -0,0 +1,68 @@
+package edu.ntnu.idi.idatt2003.g40.mappe;
+
+/**
+ * Transaction abstract class.
+ *
+ * <p>Used for transactions</p> */
+public abstract class Transaction {
+
+  private final Share share;
+
+  private final int week;
+
+  private final TransactionCalculator calculator;
+
+  private boolean commited = false;
+
+  /**
+   * Creates a new {@code Transaction} with a share, week and calculator.
+   *
+   * @param share      the share to perform the transaction on
+   * @param week       the current week to perform the transaction under
+   */
+
+  protected Transaction(final Share share, final int week,
+                        final TransactionCalculator calculator) {
+    this.share = share;
+    this.week = week;
+    this.calculator = calculator;
+  }
+
+  /**
+   * Returns the share this transaction was made on.
+   *
+   * @return share*/
+  public Share getShare() {
+    return share;
+  }
+
+  /**
+   * Returns the week this transaction was made during.
+   *
+   * @return week*/
+  public int getWeek() {
+    return week;
+  }
+
+  /**
+   * Returns the calculator used by this transaction.
+   *
+   * @return calculator
+   */
+  public TransactionCalculator getCalculator() {
+    return calculator;
+  }
+
+  /**
+   * Returns whether this transaction has been commited or not.
+   *
+   * @return commited*/
+  public boolean isCommited() {
+    return commited;
+  }
+
+  /** Commits the transaction. */
+  public void commit() {
+    commited = true;
+  }
+}