1 files changed, 19 insertions, 13 deletions
diff --git a/src/main/java/at/gv/egiz/pdfas/api/commons/Constants.java b/src/main/java/at/gv/egiz/pdfas/api/commons/Constants.java
index a7bc776..19f7613 100644
--- a/src/main/java/at/gv/egiz/pdfas/api/commons/Constants.java
+++ b/src/main/java/at/gv/egiz/pdfas/api/commons/Constants.java
@@ -21,13 +21,15 @@ public final class Constants
 
   /**
    * A binary signature.
+   * This value should not be modified due to external dependencies!
    */
-  public static String SIGNATURE_TYPE_BINARY = "binary";
+  public static final String SIGNATURE_TYPE_BINARY = "binary";
 
   /**
    * A textual signature.
+   * This value should not be modified due to external dependencies!
    */
-  public static String SIGNATURE_TYPE_TEXTUAL = "textual";
+  public static final String SIGNATURE_TYPE_TEXTUAL = "textual";
 
   /**
    * A "detached" textual signature.
@@ -37,32 +39,36 @@ public final class Constants
    * the sign result XML of the connector is returned.
    * </p>
    */
-  public static String SIGNATURE_TYPE_DETACHEDTEXTUAL = "detachedtextual";
+  public static final String SIGNATURE_TYPE_DETACHEDTEXTUAL = "detachedtextual";
 
   /**
    * The signature device moa.
+   * This value should not be modified due to external dependencies!
    */
-  public static String SIGNATURE_DEVICE_MOA = "moa";
+  public static final String SIGNATURE_DEVICE_MOA = "moa";
 
   /**
    * The signature device bku.
+   * This value should not be modified due to external dependencies!
    */
-  public static String SIGNATURE_DEVICE_BKU = "bku";
+  public static final String SIGNATURE_DEVICE_BKU = "bku";
 
   /**
    * The signature device a1.
+   * This value should not be modified due to external dependencies!
    */
-  public static String SIGNATURE_DEVICE_A1 = "a1";
+  public static final String SIGNATURE_DEVICE_A1 = "a1";
 
   /**
    * The signature device MOCCA (online bku).
+   * This value should not be modified due to external dependencies!
    */
   public static final String SIGNATURE_DEVICE_MOC = "moc";
 
   /**
    * Only binary signatures are verified.
    */
-  public static String VERIFY_MODE_BINARY_ONLY = "binaryOnly";
+  public static final String VERIFY_MODE_BINARY_ONLY = "binaryOnly";
 
   /**
    * Binary and textual signatures are verified with time optimization.
@@ -73,27 +79,27 @@ public final class Constants
    * signatures may not be found.
    * </p>
    */
-  public static String VERIFY_MODE_SEMI_CONSERVATIVE = "semiConservative";
+  public static final String VERIFY_MODE_SEMI_CONSERVATIVE = "semiConservative";
 
   /**
    * Binary and textual signatures are verified.
    */
-  public static String VERIFY_MODE_FULL_CONSERVATIVE = "fullConservative";
+  public static final String VERIFY_MODE_FULL_CONSERVATIVE = "fullConservative";
 
   /**
    * All signatures are verified.
    */
-  public static int VERIFY_ALL = -1;
+  public static final int VERIFY_ALL = -1;
 
   /**
    * The system property that may be used to declare the pdf-as configuration folder.
    */
-  public final static String CONFIG_DIR_SYSTEM_PROPERTY = "pdf-as.work-dir";
+  public static final String CONFIG_DIR_SYSTEM_PROPERTY = "pdf-as.work-dir";
 
   /**
    * The zip file containing the default configuration.
    */
-  public final static String DEFAULT_CONFIGURATION_ZIP_RESOURCE = "DefaultConfiguration.zip";
+  public static final String DEFAULT_CONFIGURATION_ZIP_RESOURCE = "DefaultConfiguration.zip";
   
   /**
    * The configuration folder for pdf-as within the user's home folder.
@@ -103,7 +109,7 @@ public final class Constants
   /**
    * The name of the directory, where temporary files are stored.
    */
-  public final static String TEMP_DIR_NAME = "pdfastmp";
+  public static final String TEMP_DIR_NAME = "pdfastmp";
 
 }