org.alfresco.rest.workflow.api.impl

Class MapBasedQueryWalker

java.lang.Object

org.alfresco.rest.framework.resource.parameters.where.QueryHelper.WalkerCallbackAdapter

org.alfresco.rest.workflow.api.impl.MapBasedQueryWalker

All Implemented Interfaces:

QueryHelper.WalkerCallback

public class MapBasedQueryWalker
extends QueryHelper.WalkerCallbackAdapter

Query walker that adds all properties for "equals" comparison to a map. If an unsupported property or comparison operation is encountered, an InvalidArgumentException is thrown unless the method handleUnmatchedComparison(int, String, String) returns true (default implementation returns false).

Author:

Frederik Heremans, Tijs Rademakers

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	MapBasedQueryWalker.QueryVariableHolder

Constructor Summary

Constructors

Constructor and Description
MapBasedQueryWalker(Set<String> supportedEqualsParameters, Set<String> supportedMatchesParameters)

Method Summary

Methods

Modifier and Type	Method and Description
void	and() Called any time an AND is encountered.
void	comparison(int type, String propertyName, String propertyValue) One of EQUALS LESSTHAN GREATERTHAN LESSTHANOREQUALS GREATERTHANOREQUALS;
void	enableVariablesSupport(org.alfresco.service.namespace.NamespaceService namespaceService, org.alfresco.service.cmr.dictionary.DictionaryService dictionaryService)
String	getProperty(String propertyName, int type)
<T> T	getProperty(String propertyName, int type, Class<T> returnType) Get the property value, converted to the requested type.
List<MapBasedQueryWalker.QueryVariableHolder>	getVariableProperties()
protected boolean	handleUnmatchedComparison(int type, String propertyName, String propertyValue) Called when unsupported property is encountered or comparison operator other than equals.
void	matches(String property, String value, boolean negated) Called any time a MATCHES clause is encountered.
protected void	processVariable(String propertyName, String propertyValue, int type)
void	setSupportedGreaterThanOrEqualParameters(Set<String> supportedGreaterThanOrEqualParameters)
void	setSupportedGreaterThanParameters(Set<String> supportedGreaterThanParameters)
void	setSupportedLessThanOrEqualParameters(Set<String> supportedLessThanOrEqualParameters)
void	setSupportedLessThanParameters(Set<String> supportedLessThanParameters)

Methods inherited from class org.alfresco.rest.framework.resource.parameters.where.QueryHelper.WalkerCallbackAdapter

between, exists, in, or

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MapBasedQueryWalker

public MapBasedQueryWalker(Set<String> supportedEqualsParameters,
                   Set<String> supportedMatchesParameters)

Method Detail

setSupportedGreaterThanParameters

public void setSupportedGreaterThanParameters(Set<String> supportedGreaterThanParameters)

setSupportedGreaterThanOrEqualParameters

public void setSupportedGreaterThanOrEqualParameters(Set<String> supportedGreaterThanOrEqualParameters)

setSupportedLessThanParameters

public void setSupportedLessThanParameters(Set<String> supportedLessThanParameters)

setSupportedLessThanOrEqualParameters

public void setSupportedLessThanOrEqualParameters(Set<String> supportedLessThanOrEqualParameters)

enableVariablesSupport

public void enableVariablesSupport(org.alfresco.service.namespace.NamespaceService namespaceService,
                          org.alfresco.service.cmr.dictionary.DictionaryService dictionaryService)

getVariableProperties

public List<MapBasedQueryWalker.QueryVariableHolder> getVariableProperties()

matches

public void matches(String property,
           String value,
           boolean negated)

Description copied from interface: QueryHelper.WalkerCallback

Called any time a MATCHES clause is encountered.

Specified by:

matches in interface QueryHelper.WalkerCallback

Overrides:

matches in class QueryHelper.WalkerCallbackAdapter

negated - returns true if "NOT MATCHES" was used

comparison

public void comparison(int type,
              String propertyName,
              String propertyValue)

Description copied from interface: QueryHelper.WalkerCallback

One of EQUALS LESSTHAN GREATERTHAN LESSTHANOREQUALS GREATERTHANOREQUALS;

Specified by:

comparison in interface QueryHelper.WalkerCallback

Overrides:

comparison in class QueryHelper.WalkerCallbackAdapter

getProperty

public String getProperty(String propertyName,
                 int type)

getProperty

public <T> T getProperty(String propertyName,
                int type,
                Class<T> returnType)

Get the property value, converted to the requested type.

Parameters:

parameters - used to extract parameter value from

propertyName - name of the parameter

returnType - type of object to return

Returns:

the converted parameter value. Null, if the property has no value.

Throws:

IllegalArgumentException - when no conversion for the given returnType is available or if returnType is null.

InvalidArgumentException - when conversion to the given type was not possible due to an error while converting

and

public void and()

Description copied from interface: QueryHelper.WalkerCallback

Called any time an AND is encountered.

Specified by:

and in interface QueryHelper.WalkerCallback

Overrides:

and in class QueryHelper.WalkerCallbackAdapter

processVariable

protected void processVariable(String propertyName,
                   String propertyValue,
                   int type)

handleUnmatchedComparison

protected boolean handleUnmatchedComparison(int type,
                                String propertyName,
                                String propertyValue)

Called when unsupported property is encountered or comparison operator other than equals.

Returns:

true, if the comparison is handles successfully. False, if an exception should be thrown because the comparison can't be handled.