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125781 rmunteanu: Merged 5.1.N (5.1.2) to 5.2.N (5.2.1)
125603 rmunteanu: Merged 5.1.1 (5.1.1) to 5.1.N (5.1.2)
125484 slanglois: MNT-16155 Update source headers - remove old Copyrights from Java and JSP dource files
git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@127808 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
77 lines
2.9 KiB
Java
77 lines
2.9 KiB
Java
package org.alfresco.repo.admin.registry;
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import java.io.Serializable;
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import java.util.Collection;
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/**
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* Interface for service providing access to key-value pairs for storage
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* of system-controlled metadata.
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*
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* @author Derek Hulley
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*/
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public interface RegistryService
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{
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/**
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* Assign a value to the registry key, which must be of the form <b>/a/b/c</b>.
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*
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* @param key the registry key.
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* @param value any value that can be stored in the repository.
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*/
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void addProperty(RegistryKey key, Serializable value);
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/**
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* @param key the registry key.
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* @return Returns the value stored in the key or <tt>null</tt> if
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* no value exists at the path and name provided
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*
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* @see #addProperty(RegistryKey, Serializable)
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*/
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Serializable getProperty(RegistryKey key);
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/**
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* Fetches all child elements for the given path. The key's property should be
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* <tt>null</tt> as it is completely ignored.
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* <code><pre>
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* ...
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* registryService.addValue(KEY_A_B_C_1, VALUE_ONE);
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* registryService.addValue(KEY_A_B_C_2, VALUE_TWO);
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* ...
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* assertTrue(registryService.getChildElements(KEY_A_B_null).contains("C"));
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* ...
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* </pre></code>
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*
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* @param key the registry key with the path. The last element in the path
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* will be ignored, and can be any acceptable value localname or <tt>null</tt>.
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* @return Returns all child elements (not values) for the given key, ignoring
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* the last element in the key.
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*
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* @see RegistryKey#getPath()
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*/
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Collection<String> getChildElements(RegistryKey key);
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/**
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* Copies the path or value from the source to the target location. The source and target
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* keys <b>must</b> be both either path-specific or property-specific. If the source doesn't
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* exist, then nothing will be done; there is no guarantee that the target will exist after
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* the call.
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* <p>
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* This is essentially a merge operation. Use {@link #delete(RegistryKey) delete} first
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* if the target must be cleaned.
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*
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* @param sourceKey the source registry key to take values from
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* @param targetKey the target registyr key to move the path or value to
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*/
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void copy(RegistryKey sourceKey, RegistryKey targetKey);
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/**
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* Delete the path element or value described by the key. If the key points to nothing,
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* then nothing is done.
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* <code>delete(/a/b/c)</code> will remove value <b>c</b> from path <b>/a/b</b>.<br/>
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* <code>delete(/a/b/null)</code> will remove node <b>/a/b</b> along with all values and child
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* elements.
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*
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* @param key the path or value to delete
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*/
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void delete(RegistryKey key);
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}
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