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ilgrosso/Olingo4V3FunctionImportInvoke.java

Last active August 29, 2015 13:58
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Invoking V3 FunctionImport via Olingo4 client library
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Olingo4V3FunctionImportInvoke.java
Edm edm = getClient().getRetrieveRequestFactory().
getMetadataRequest(testStaticServiceRootURL).execute().getBody();
EdmFunction func = edm.getUnboundFunction("GetPrimitiveString", null);
EdmEntityContainer container = edm.getSchemas().get(0).getEntityContainer();
URIBuilder builder = getClient().getURIBuilder(testStaticServiceRootURL).
appendOperationCallSegment(URIUtils.operationImportURISegment(container, func.getName()));
ODataProperty property = getClient().getInvokeRequestFactory().
getInvokeRequest(builder.build(), func).execute().getBody();
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ilgrosso commented Apr 8, 2014

Lines 1:2 - get metadata - this step can be cached for multiple invocations

Line 4 - via metadata, get to the function to be invoked through function import

Line 6:7 - get entity container for the given metadata and use URIBuilder as facility for building the invoke URI for the function import - these two steps are optional if one wants to provide directly the full URL in the subsequent statement, in place of builder.build()

Lines 10:11 - an invoke request is obtained, and result is taken as ODataProperty

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