MappingTransformer

Class Overview

A transformer for converting data and structure held in a list of Maps. Many projects that work with tabular data will use a List of java.util.Map objects where each map is a row. In Mule the JDBC, Salesforce, Datapack and HL7 connectors all use this format. This transformer allows simple mapping rules to be created to alter these list of maps. The transformer will still return a list of maps but the number of fields, field names and vlaue can be changed. For example, for simple one-to-one field mapping it can be used as: or to combine fields an expression can be used: If sourceColumn is defined it will override anything set in the 'value' attribute. You can also set a static default value for a field. Note when defining mapping rules it is don in the context of what you want the destination data to look like. As such, you need to specify a rule for every field you want in the resulting data set. each mapping rule will be applied to very row (map) in the data set.

Summary

[Expand] Inherited Constants
From interface org.mule.api.AnnotatedObject String PROPERTY_NAME
From interface org.mule.api.lifecycle.Disposable String PHASE_NAME
From interface org.mule.api.lifecycle.Initialisable String PHASE_NAME

[Expand] Inherited Fields

From class org.mule.transformer.AbstractTransformer public static final DataType<MuleMessage> MULE_MESSAGE_DATA_TYPE private boolean allowNullReturn private final Map<QName, Object> annotations protected String encoding protected ImmutableEndpoint endpoint private boolean ignoreBadInput protected final Log logger protected String mimeType protected MuleContext muleContext protected String name protected DataType<?> returnType protected final List<DataType<?>> sourceTypes

[Expand] Inherited Methods
From class org.mule.transformer.AbstractTransformer Object checkReturnClass(Object arg0) void dispose() abstract Object doTransform(Object arg0, String arg1) String generateTransformerName() final Object getAnnotation(QName arg0) final Map<QName, Object> getAnnotations() String getEncoding() String getEncoding(Object arg0) ImmutableEndpoint getEndpoint() String getMimeType() String getName() Class<?> getReturnClass() DataType<?> getReturnDataType() List<DataType<?>> getSourceDataTypes() List<Class<?>> getSourceTypes() void initialise() boolean isAcceptNull() boolean isAllowNullReturn() boolean isConsumed(Class<?> arg0) boolean isIgnoreBadInput() boolean isSourceDataTypeSupported(DataType<?> arg0, boolean arg1) boolean isSourceDataTypeSupported(DataType<?> arg0) boolean isSourceTypeSupported(Class<?> arg0) boolean isSourceTypeSupported(Class<MuleMessage> arg0, boolean arg1) void onNotification(ServerNotification arg0) void onNotification(MuleContextNotification arg0) MuleEvent process(MuleEvent arg0) void registerSourceType(DataType<?> arg0) void registerSourceType(Class<?> arg0) void setAllowNullReturn(boolean arg0) synchronized final void setAnnotations(Map<QName, Object> arg0) void setEncoding(String arg0) void setEndpoint(ImmutableEndpoint arg0) void setIgnoreBadInput(boolean arg0) void setMimeType(String arg0) void setMuleContext(MuleContext arg0) void setName(String arg0) void setReturnClass(Class<?> arg0) void setReturnDataType(DataType<?> arg0) String toString() final Object transform(Object arg0) Object transform(Object arg0, String arg1) void unregisterSourceType(DataType<?> arg0) void unregisterSourceType(Class<?> arg0)
From class java.lang.Object Object clone() boolean equals(Object arg0) void finalize() final Class<?> getClass() int hashCode() final void notify() final void notifyAll() String toString() final void wait() final void wait(long arg0, int arg1) final void wait(long arg0)
From interface org.mule.api.AnnotatedObject abstract Object getAnnotation(QName arg0) abstract Map<QName, Object> getAnnotations() abstract void setAnnotations(Map<QName, Object> arg0)
From interface org.mule.api.NameableObject abstract void setName(String arg0)
From interface org.mule.api.NamedObject abstract String getName()
From interface org.mule.api.context.MuleContextAware abstract void setMuleContext(MuleContext arg0)
From interface org.mule.api.context.notification.ServerNotificationListener abstract void onNotification(T arg0)
From interface org.mule.api.lifecycle.Disposable abstract void dispose()
From interface org.mule.api.lifecycle.Initialisable abstract void initialise()
From interface org.mule.api.processor.MessageProcessor abstract MuleEvent process(MuleEvent arg0)
From interface org.mule.api.transformer.Transformer abstract String getEncoding() abstract ImmutableEndpoint getEndpoint() abstract String getMimeType() abstract Class<?> getReturnClass() abstract DataType<?> getReturnDataType() abstract List<DataType<?>> getSourceDataTypes() abstract List<Class<?>> getSourceTypes() abstract boolean isAcceptNull() abstract boolean isIgnoreBadInput() abstract boolean isSourceDataTypeSupported(DataType<?> arg0) abstract boolean isSourceTypeSupported(Class<?> arg0) abstract void setReturnClass(Class<?> arg0) abstract void setReturnDataType(DataType<?> arg0) abstract Object transform(Object arg0) abstract Object transform(Object arg0, String arg1)
From interface org.mule.endpoint.EndpointAware abstract void setEndpoint(ImmutableEndpoint arg0)