EscapeHandler


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64  
65  package com.jcorporate.expresso.core.db;
66  
67  /**
68   * This interface is the base interface by which we escape characters that are
69   * to be written to the database.  Different databases can perform significantly
70   * differetly.  For example, both Postgres and MySQL escape single quotes as
71   * \'  but SapDB escapes it as ''.  By running character strings through the
72   * escape handler, we have the ability to customize behavior based upon the variou
73   * databases.
74   * <p>Most implementations of this interface depend on the
75   * <code>com.jcorporate.expresso.core.security.filters</code>
76   * mechanism to properly work</p>
77   *
78   * @author Michael Rimov
79   */
80  
81  public interface EscapeHandler {
82  
83      /**
84       * Escape a string so that all special characters for that database are properly
85       * escaped.
86       *
87       * @param input The string to filter
88       * @return a properly constructed string for your particular database.
89       */
90      String   escapeString(String   input);
91  }
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