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https://issues.apache.org/jira/browse/CAY-1985?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14367123#comment-14367123
]
Savva Kolbachev commented on CAY-1985:
--------------------------------------
Summary table of Array type support:
|| || Supported || Links ||
|| db2 || {color:green}true{color} || [DB2 Array
type|http://www-01.ibm.com/support/knowledgecenter/SSEPGG_9.7.0/com.ibm.db2.luw.apdv.sqlpl.doc/doc/c0055266.html]
|| derby || {color:red}false{color} || ||
|| firebird || {color:red}false{color} || ||
|| frontbase || {color:red}false{color} || ||
|| h2 || {color:green}true{color} || [H2 Array
type|http://www.h2database.com/html/datatypes.html#array_type]
|| hsqldb || {color:green}true{color} || [HSQLDB Array
type|http://hsqldb.org/doc/guide/sqlgeneral-chapt.html#sgc_array]
|| ingres || {color:red}false{color} || ||
|| mysql || {color:red}false{color} || ||
|| openbase || {color:red}false{color} || ||
|| oracle || {color:green}true{color} ||
[Link1|http://docs.oracle.com/cd/E11882_01/java.112/e16548/oraarr.htm#JJDBC28574]
[Link2|http://docs.oracle.com/cd/B28359_01/appdev.111/b28371/adobjcol.htm#ADOBJ00204]
|| postgres || {color:green}true{color} || [PostgreSQL Array
type|http://www.postgresql.org/docs/9.1/static/arrays.html]
|| sqlite || {color:red}false{color} || ||
|| sqlserver || {color:red}false{color} || ||
|| sybase || {color:red}false{color} || ||
> JDBC Array type is not supported
> --------------------------------
>
> Key: CAY-1985
> URL: https://issues.apache.org/jira/browse/CAY-1985
> Project: Cayenne
> Issue Type: Task
> Components: Core Library
> Affects Versions: 4.0.M2
> Reporter: Alex Kolonitsky
> Assignee: Savva Kolbachev
>
> At example below I've tried to create -> save -> load object with array field
> and I expect that loaded object will be equal to original.
> {code:xml|title=cayenne-project.xml|borderStyle=solid}
> <?xml version="1.0" encoding="utf-8"?>
> <domain project-version="7">
> <map name="datamap"/>
> <node name="datanode"
> schema-update-strategy="org.apache.cayenne.access.dbsync.CreateIfNoSchemaStrategy">
> <map-ref name="datamap"/>
> <data-source>
> <driver value="org.h2.Driver"/>
> <url value="jdbc:h2:~/test"/>
> <connectionPool min="1" max="1"/>
> <login/>
> </data-source>
> </node>
> </domain>
> {code}
> {code:xml|title=datamap.map.xml|borderStyle=solid}
> <?xml version="1.0" encoding="utf-8"?>
> <data-map xmlns="http://cayenne.apache.org/schema/7/modelMap";
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
> xsi:schemaLocation="http://cayenne.apache.org/schema/7/modelMap
> http://cayenne.apache.org/schema/7/modelMap.xsd";
> project-version="7">
> <property name="defaultPackage" value="com.mycompany.app"/>
> <db-entity name="Object_With_Array">
> <db-attribute name="array" type="ARRAY" length="50"/>
> <db-attribute name="id" type="INTEGER" isPrimaryKey="true"
> isMandatory="true"/>
> </db-entity>
> <obj-entity name="ObjectWithArray"
> className="com.mycompany.app.ObjectWithArray"
> dbEntityName="Object_With_Array">
> <obj-attribute name="array" type="java.lang.Double[]"
> db-attribute-path="array"/>
> </obj-entity>
> </data-map>
> {code}
> {code:java|title=App.java|borderStyle=solid}
> public class App {
> public static void main( String[] args ) throws ClassNotFoundException,
> SQLException {
> ServerRuntime runtime = new ServerRuntime("cayenne-project.xml");
> DataContext context = (DataContext)runtime.newContext();
> ObjectWithArray owa = context.newObject(ObjectWithArray.class);
> owa.setArray(new Double[]{1.0, 2.0});
> context.commitChanges();
> List list = context.performQuery(new
> SelectQuery(ObjectWithArray.class));
> System.out.println(Arrays.toString(((ObjectWithArray)
> list.get(0)).getArray()));
> }
> }
> {code}
> *Expected result* : console output [1.0, 2.0]
> *Actual result* : exception
> {code}
> org.h2.jdbc.JdbcSQLException: Hexadecimal string contains non-hex character:
> "(aced0005...00000000000)" [90004-185]
> at org.h2.message.DbException.getJdbcSQLException(DbException.java:345)
> at org.h2.message.DbException.get(DbException.java:179)
> at org.h2.message.DbException.get(DbException.java:155)
> at org.h2.util.StringUtils.convertHexToBytes(StringUtils.java:966)
> at org.h2.value.Value.convertTo(Value.java:864)
> at org.h2.value.Value.getBytes(Value.java:411)
> at org.h2.jdbc.JdbcResultSet.getBytes(JdbcResultSet.java:1054)
> at
> org.apache.cayenne.access.types.ByteArrayType.materializeObject(ByteArrayType.java:89)
> at
> org.apache.cayenne.access.types.ExtendedTypeDecorator.materializeObject(ExtendedTypeDecorator.java:53)
> at
> org.apache.cayenne.access.jdbc.reader.FullRowReader.readRow(FullRowReader.java:52)
> at
> org.apache.cayenne.access.jdbc.reader.FullRowReader.readRow(FullRowReader.java:32)
> at
> org.apache.cayenne.access.jdbc.JDBCResultIterator.nextRow(JDBCResultIterator.java:104)
> at
> org.apache.cayenne.access.jdbc.JDBCResultIterator.allRows(JDBCResultIterator.java:80)
> at
> org.apache.cayenne.access.jdbc.SelectAction.performAction(SelectAction.java:181)
> at
> org.apache.cayenne.access.DataNodeQueryAction.runQuery(DataNodeQueryAction.java:97)
> at org.apache.cayenne.access.DataNode.performQueries(DataNode.java:302)
> at
> org.apache.cayenne.access.DataDomainQueryAction.runQuery(DataDomainQueryAction.java:439)
> at
> org.apache.cayenne.access.DataDomainQueryAction.access$000(DataDomainQueryAction.java:71)
> at
> org.apache.cayenne.access.DataDomainQueryAction$2.perform(DataDomainQueryAction.java:412)
> at
> org.apache.cayenne.tx.DefaultTransactionManager.performInTransaction(DefaultTransactionManager.java:53)
> at
> org.apache.cayenne.access.DataDomainQueryAction.runQueryInTransaction(DataDomainQueryAction.java:409)
> at
> org.apache.cayenne.access.DataDomainQueryAction.execute(DataDomainQueryAction.java:121)
> at
> org.apache.cayenne.access.DataDomain.onQueryNoFilters(DataDomain.java:560)
> at
> org.apache.cayenne.access.DataDomain$DataDomainQueryFilterChain.onQuery(DataDomain.java:744)
> at org.apache.cayenne.access.DataDomain.onQuery(DataDomain.java:552)
> at
> org.apache.cayenne.util.ObjectContextQueryAction.runQuery(ObjectContextQueryAction.java:350)
> at
> org.apache.cayenne.util.ObjectContextQueryAction.executePostCache(ObjectContextQueryAction.java:106)
> at
> org.apache.cayenne.util.ObjectContextQueryAction.execute(ObjectContextQueryAction.java:93)
> at org.apache.cayenne.access.DataContext.onQuery(DataContext.java:985)
> at
> org.apache.cayenne.access.DataContext.performQuery(DataContext.java:974)
> {code}
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