Cross-referencing between regests requires an index of regests

[jjarosch]

ediarum.RI.edit/regesta_imperii_regesten.framework

Lines 2147 to 2204 in f1589af

	<action>
	<field name="id">
	<String>reftest</String>
	</field>
	<field name="name">
	<String>ref</String>
	</field>
	<field name="description">
	<String></String>
	</field>
	<field name="largeIconPath">
	<String></String>
	</field>
	<field name="smallIconPath">
	<String></String>
	</field>
	<field name="accessKey">
	<String></String>
	</field>
	<field name="accelerator">
	<null/>
	</field>
	<field name="actionModes">
	<actionMode-array>
	<actionMode>
	<field name="xpathCondition">
	<String></String>
	</field>
	<field name="argValues">
	<serializableOrderedMap>
	<entry>
	<String>URL</String>
	<String>${RI_DATACOPY_VIA_REST}/indexOfRegests.xml</String>
	</entry>
	<entry>
	<String>element</String>
	<String>"&lt;ref xmlns='http://www.tei-c.org/ns/1.0' target='" + @id + "' />"</String>
	</entry>
	<entry>
	<String>expression</String>
	<String>//span</String>
	</entry>
	<entry>
	<String>node</String>
	<String>//li</String>
	</entry>
	</serializableOrderedMap>
	</field>
	<field name="operationID">
	<String>org.bbaw.telota.ediarum.InsertRegisterOperation</String>
	</field>
	</actionMode>
	</actionMode-array>
	</field>
	<field name="enabledInReadOnlyContext">
	<Boolean>false</Boolean>
	</field>
	</action>

This action requires an up-to-date index of regests, but so far no mechanism for updating the index exists.

Proposed solution: create an eXist database trigger to transform the regests into an index file and store it in the database.

Requirement: this needs to work separatley within sections (“Abteilungen”) of the project, so that cross-references are made within the section, but not across sections. (Or at least, this should be a conscious choice, i.e. a separate function.)