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HHH-15748 Use JSON DDL type on Oracle 21+ and BLOB on 12+
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118 changes: 118 additions & 0 deletions
118
hibernate-core/src/main/java/org/hibernate/dialect/OracleJsonJdbcType.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,118 @@ | ||
| /* | ||
| * Hibernate, Relational Persistence for Idiomatic Java | ||
| * | ||
| * License: GNU Lesser General Public License (LGPL), version 2.1 or later | ||
| * See the lgpl.txt file in the root directory or http://www.gnu.org/licenses/lgpl-2.1.html | ||
| */ | ||
| package org.hibernate.dialect; | ||
|
|
||
| import java.sql.CallableStatement; | ||
| import java.sql.PreparedStatement; | ||
| import java.sql.ResultSet; | ||
| import java.sql.SQLException; | ||
|
|
||
| import org.hibernate.type.SqlTypes; | ||
| import org.hibernate.type.descriptor.ValueBinder; | ||
| import org.hibernate.type.descriptor.ValueExtractor; | ||
| import org.hibernate.type.descriptor.WrapperOptions; | ||
| import org.hibernate.type.descriptor.java.JavaType; | ||
| import org.hibernate.type.descriptor.jdbc.BasicBinder; | ||
| import org.hibernate.type.descriptor.jdbc.BasicExtractor; | ||
| import org.hibernate.type.descriptor.jdbc.JdbcLiteralFormatter; | ||
| import org.hibernate.type.descriptor.jdbc.JdbcType; | ||
|
|
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| import oracle.jdbc.OracleType; | ||
|
|
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| /** | ||
| * Specialized type mapping for {@code JSON} that encodes as OSON. | ||
| * This class is used from {@link OracleTypesHelper} reflectively to avoid loading Oracle JDBC classes eagerly. | ||
| * | ||
| * @author Christian Beikov | ||
| */ | ||
| public class OracleJsonJdbcType implements JdbcType { | ||
| /** | ||
| * Singleton access | ||
| */ | ||
| public static final OracleJsonJdbcType INSTANCE = new OracleJsonJdbcType(); | ||
|
|
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| private static final int JSON_TYPE_CODE = OracleType.JSON.getVendorTypeNumber(); | ||
|
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| @Override | ||
| public int getJdbcTypeCode() { | ||
| return SqlTypes.BLOB; | ||
| } | ||
|
|
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| @Override | ||
| public int getDefaultSqlTypeCode() { | ||
| return SqlTypes.JSON; | ||
| } | ||
|
|
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| @Override | ||
| public String toString() { | ||
| return "OracleJsonJdbcType"; | ||
| } | ||
|
|
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| @Override | ||
| public <T> JdbcLiteralFormatter<T> getJdbcLiteralFormatter(JavaType<T> javaType) { | ||
| // No literal support for now | ||
| return null; | ||
| } | ||
|
|
||
| @Override | ||
| public <X> ValueBinder<X> getBinder(JavaType<X> javaType) { | ||
| return new BasicBinder<>( javaType, this ) { | ||
| @Override | ||
| protected void doBind(PreparedStatement st, X value, int index, WrapperOptions options) | ||
| throws SQLException { | ||
| final String json = options.getSessionFactory().getFastSessionServices().getJsonFormatMapper().toString( | ||
| value, | ||
| getJavaType(), | ||
| options | ||
| ); | ||
| st.setObject( index, json, JSON_TYPE_CODE ); | ||
| } | ||
|
|
||
| @Override | ||
| protected void doBind(CallableStatement st, X value, String name, WrapperOptions options) | ||
| throws SQLException { | ||
| final String json = options.getSessionFactory().getFastSessionServices().getJsonFormatMapper().toString( | ||
| value, | ||
| getJavaType(), | ||
| options | ||
| ); | ||
| st.setObject( name, json, JSON_TYPE_CODE ); | ||
| } | ||
| }; | ||
| } | ||
|
|
||
| @Override | ||
| public <X> ValueExtractor<X> getExtractor(JavaType<X> javaType) { | ||
| return new BasicExtractor<>( javaType, this ) { | ||
| @Override | ||
| protected X doExtract(ResultSet rs, int paramIndex, WrapperOptions options) throws SQLException { | ||
| return getObject( rs.getString( paramIndex ), options ); | ||
| } | ||
|
|
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| @Override | ||
| protected X doExtract(CallableStatement statement, int index, WrapperOptions options) throws SQLException { | ||
| return getObject( statement.getString( index ), options ); | ||
| } | ||
|
|
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| @Override | ||
| protected X doExtract(CallableStatement statement, String name, WrapperOptions options) throws SQLException { | ||
| return getObject( statement.getString( name ), options ); | ||
| } | ||
|
|
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| private X getObject(String json, WrapperOptions options) throws SQLException { | ||
| if ( json == null ) { | ||
| return null; | ||
| } | ||
| return options.getSessionFactory().getFastSessionServices().getJsonFormatMapper().fromString( | ||
| json, | ||
| getJavaType(), | ||
| options | ||
| ); | ||
| } | ||
| }; | ||
| } | ||
| } |
14 changes: 14 additions & 0 deletions
14
hibernate-core/src/main/java/org/hibernate/dialect/OracleTypes.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,14 @@ | ||
| /* | ||
| * Hibernate, Relational Persistence for Idiomatic Java | ||
| * | ||
| * License: GNU Lesser General Public License (LGPL), version 2.1 or later. | ||
| * See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>. | ||
| */ | ||
| package org.hibernate.dialect; | ||
|
|
||
| /** | ||
| * The Oracle specific JDBC type code. | ||
| */ | ||
| public class OracleTypes { | ||
| public static final int JSON = 2016; | ||
| } |
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