public Builder setSourceTerm(com.google.cloud.translate.v3.GlossaryTerm value) {
        if (sourceTermBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          sourceTerm_ = value;
        } else {
          sourceTermBuilder_.setMessage(value);
        }
        bitField0_ |= 0x00000001;
        onChanged();
        return this;
      }
<pre>
The source term is the term that will get match in the text,
</pre>

<code>.google.cloud.translation.v3.GlossaryTerm source_term = 1;</code>
java-translate/proto-google-cloud-translate-v3/src/main/java/com/google/cloud/translate/v3/GlossaryEntry.java