Class CompareRequest

  • All Implemented Interfaces:
    ProtocolOp, ReadOnlyCompareRequest, ReadOnlyLDAPRequest, java.io.Serializable

    @Mutable
    @ThreadSafety(level=NOT_THREADSAFE)
    public final class CompareRequest
    extends UpdatableLDAPRequest
    implements ReadOnlyCompareRequest, ProtocolOp
    This class implements the processing necessary to perform an LDAPv3 compare operation, which may be used to determine whether a specified entry contains a given attribute value. Compare requests include the DN of the target entry, the name of the target attribute, and the value for which to make the determination. It may also include a set of controls to send to the server.

    The assertion value may be specified as either a string or a byte array. If it is specified as a byte array, then it may represent either a binary or a string value. If a string value is provided as a byte array, then it should use the UTF-8 encoding for that value.

    CompareRequest objects are mutable and therefore can be altered and re-used for multiple requests. Note, however, that CompareRequest objects are not threadsafe and therefore a single CompareRequest object instance should not be used to process multiple requests at the same time.

    Example

    The following example demonstrates the process for performing a compare operation:
     CompareRequest compareRequest =
          new CompareRequest("dc=example,dc=com", "description", "test");
     CompareResult compareResult;
     try
     {
       compareResult = connection.compare(compareRequest);
    
       // The compare operation didn't throw an exception, so we can try to
       // determine whether the compare matched.
       if (compareResult.compareMatched())
       {
         // The entry does have a description value of test.
       }
       else
       {
         // The entry does not have a description value of test.
       }
     }
     catch (LDAPException le)
     {
       // The compare operation failed.
       compareResult = new CompareResult(le.toLDAPResult());
       ResultCode resultCode = le.getResultCode();
       String errorMessageFromServer = le.getDiagnosticMessage();
     }
     
    See Also:
    Serialized Form
    • Constructor Detail

      • CompareRequest

        public CompareRequest​(java.lang.String dn,
                              java.lang.String attributeName,
                              java.lang.String assertionValue)
        Creates a new compare request with the provided information.
        Parameters:
        dn - The DN of the entry in which the comparison is to be performed. It must not be null.
        attributeName - The name of the target attribute for which the comparison is to be performed. It must not be null.
        assertionValue - The assertion value to verify within the entry. It must not be null.
      • CompareRequest

        public CompareRequest​(java.lang.String dn,
                              java.lang.String attributeName,
                              byte[] assertionValue)
        Creates a new compare request with the provided information.
        Parameters:
        dn - The DN of the entry in which the comparison is to be performed. It must not be null.
        attributeName - The name of the target attribute for which the comparison is to be performed. It must not be null.
        assertionValue - The assertion value to verify within the entry. It must not be null.
      • CompareRequest

        public CompareRequest​(DN dn,
                              java.lang.String attributeName,
                              java.lang.String assertionValue)
        Creates a new compare request with the provided information.
        Parameters:
        dn - The DN of the entry in which the comparison is to be performed. It must not be null.
        attributeName - The name of the target attribute for which the comparison is to be performed. It must not be null.
        assertionValue - The assertion value to verify within the entry. It must not be null.
      • CompareRequest

        public CompareRequest​(DN dn,
                              java.lang.String attributeName,
                              byte[] assertionValue)
        Creates a new compare request with the provided information.
        Parameters:
        dn - The DN of the entry in which the comparison is to be performed. It must not be null.
        attributeName - The name of the target attribute for which the comparison is to be performed. It must not be null.
        assertionValue - The assertion value to verify within the entry. It must not be null.
      • CompareRequest

        public CompareRequest​(java.lang.String dn,
                              java.lang.String attributeName,
                              java.lang.String assertionValue,
                              Control[] controls)
        Creates a new compare request with the provided information.
        Parameters:
        dn - The DN of the entry in which the comparison is to be performed. It must not be null.
        attributeName - The name of the target attribute for which the comparison is to be performed. It must not be null.
        assertionValue - The assertion value to verify within the entry. It must not be null.
        controls - The set of controls for this compare request.
      • CompareRequest

        public CompareRequest​(java.lang.String dn,
                              java.lang.String attributeName,
                              byte[] assertionValue,
                              Control[] controls)
        Creates a new compare request with the provided information.
        Parameters:
        dn - The DN of the entry in which the comparison is to be performed. It must not be null.
        attributeName - The name of the target attribute for which the comparison is to be performed. It must not be null.
        assertionValue - The assertion value to verify within the entry. It must not be null.
        controls - The set of controls for this compare request.
      • CompareRequest

        public CompareRequest​(DN dn,
                              java.lang.String attributeName,
                              java.lang.String assertionValue,
                              Control[] controls)
        Creates a new compare request with the provided information.
        Parameters:
        dn - The DN of the entry in which the comparison is to be performed. It must not be null.
        attributeName - The name of the target attribute for which the comparison is to be performed. It must not be null.
        assertionValue - The assertion value to verify within the entry. It must not be null.
        controls - The set of controls for this compare request.
      • CompareRequest

        public CompareRequest​(DN dn,
                              java.lang.String attributeName,
                              ASN1OctetString assertionValue,
                              Control[] controls)
        Creates a new compare request with the provided information.
        Parameters:
        dn - The DN of the entry in which the comparison is to be performed. It must not be null.
        attributeName - The name of the target attribute for which the comparison is to be performed. It must not be null.
        assertionValue - The assertion value to verify within the entry. It must not be null.
        controls - The set of controls for this compare request.
      • CompareRequest

        public CompareRequest​(DN dn,
                              java.lang.String attributeName,
                              byte[] assertionValue,
                              Control[] controls)
        Creates a new compare request with the provided information.
        Parameters:
        dn - The DN of the entry in which the comparison is to be performed. It must not be null.
        attributeName - The name of the target attribute for which the comparison is to be performed. It must not be null.
        assertionValue - The assertion value to verify within the entry. It must not be null.
        controls - The set of controls for this compare request.
    • Method Detail

      • getDN

        public java.lang.String getDN()
        Retrieves the DN of the entry in which the comparison is to be performed.
        Specified by:
        getDN in interface ReadOnlyCompareRequest
        Returns:
        The DN of the entry in which the comparison is to be performed.
      • setDN

        public void setDN​(java.lang.String dn)
        Specifies the DN of the entry in which the comparison is to be performed.
        Parameters:
        dn - The DN of the entry in which the comparison is to be performed. It must not be null.
      • setDN

        public void setDN​(DN dn)
        Specifies the DN of the entry in which the comparison is to be performed.
        Parameters:
        dn - The DN of the entry in which the comparison is to be performed. It must not be null.
      • getAttributeName

        public java.lang.String getAttributeName()
        Retrieves the name of the attribute for which the comparison is to be performed.
        Specified by:
        getAttributeName in interface ReadOnlyCompareRequest
        Returns:
        The name of the attribute for which the comparison is to be performed.
      • setAttributeName

        public void setAttributeName​(java.lang.String attributeName)
        Specifies the name of the attribute for which the comparison is to be performed.
        Parameters:
        attributeName - The name of the attribute for which the comparison is to be performed. It must not be null.
      • setAssertionValue

        public void setAssertionValue​(java.lang.String assertionValue)
        Specifies the assertion value to specify within the target entry.
        Parameters:
        assertionValue - The assertion value to specify within the target entry. It must not be null.
      • setAssertionValue

        public void setAssertionValue​(byte[] assertionValue)
        Specifies the assertion value to specify within the target entry.
        Parameters:
        assertionValue - The assertion value to specify within the target entry. It must not be null.
      • setAssertionValue

        public void setAssertionValue​(ASN1OctetString assertionValue)
        Specifies the assertion value to specify within the target entry.
        Parameters:
        assertionValue - The assertion value to specify within the target entry. It must not be null.
      • writeTo

        public void writeTo​(ASN1Buffer buffer)
        Writes an ASN.1-encoded representation of this LDAP protocol op to the provided ASN.1 buffer. This method is intended for internal use only and should not be used by third-party code.
        Specified by:
        writeTo in interface ProtocolOp
        Parameters:
        buffer - The ASN.1 buffer to which the encoded representation should be written.
      • process

        protected CompareResult process​(LDAPConnection connection,
                                        int depth)
                                 throws LDAPException
        Sends this delete request to the directory server over the provided connection and returns the associated response.
        Specified by:
        process in class LDAPRequest
        Parameters:
        connection - The connection to use to communicate with the directory server.
        depth - The current referral depth for this request. It should always be one for the initial request, and should only be incremented when following referrals.
        Returns:
        An LDAP result object that provides information about the result of the delete processing.
        Throws:
        LDAPException - If a problem occurs while sending the request or reading the response.
      • getLastMessageID

        public int getLastMessageID()
        Retrieves the message ID for the last LDAP message sent using this request.
        Specified by:
        getLastMessageID in class LDAPRequest
        Returns:
        The message ID for the last LDAP message sent using this request, or -1 if it no LDAP messages have yet been sent using this request.
      • duplicate

        public CompareRequest duplicate​(Control[] controls)
        Creates a new instance of this LDAP request that may be modified without impacting this request. The provided controls will be used for the new request instead of duplicating the controls from this request.
        Specified by:
        duplicate in interface ReadOnlyCompareRequest
        Specified by:
        duplicate in interface ReadOnlyLDAPRequest
        Parameters:
        controls - The set of controls to include in the duplicate request.
        Returns:
        A new instance of this LDAP request that may be modified without impacting this request.
      • toString

        public void toString​(java.lang.StringBuilder buffer)
        Appends a string representation of this request to the provided buffer.
        Specified by:
        toString in interface ProtocolOp
        Specified by:
        toString in interface ReadOnlyLDAPRequest
        Specified by:
        toString in class LDAPRequest
        Parameters:
        buffer - The buffer to which to append a string representation of this request.
      • toCode

        public void toCode​(java.util.List<java.lang.String> lineList,
                           java.lang.String requestID,
                           int indentSpaces,
                           boolean includeProcessing)
        Appends a number of lines comprising the Java source code that can be used to recreate this request to the given list.
        Specified by:
        toCode in interface ReadOnlyLDAPRequest
        Parameters:
        lineList - The list to which the source code lines should be added.
        requestID - The name that should be used as an identifier for the request. If this is null or empty, then a generic ID will be used.
        indentSpaces - The number of spaces that should be used to indent the generated code. It must not be negative.
        includeProcessing - Indicates whether the generated code should include code required to actually process the request and handle the result (if true), or just to generate the request (if false).