org.apache.pig

Class ResourceSchema.ResourceFieldSchema

java.lang.Object

org.apache.pig.ResourceSchema.ResourceFieldSchema

All Implemented Interfaces:

Serializable

Enclosing class:

ResourceSchema

public static class ResourceSchema.ResourceFieldSchema
extends Object
implements Serializable

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
ResourceFieldSchema() Construct an empty field schema.
ResourceFieldSchema(LogicalSchema.LogicalFieldSchema fieldSchema) Construct using a LogicalSchema.LogicalFieldSchema as the template.
ResourceFieldSchema(Schema.FieldSchema fieldSchema) Construct using a Schema.FieldSchema as the template.

Method Summary

Modifier and Type	Method and Description
String	calcCastString()
String	getDescription() Get a free form text description of this field.
String	getName() Get the name of this field.
ResourceSchema	getSchema() Get the schema for this field.
byte	getType() Get the type of this field.
ResourceSchema.ResourceFieldSchema	setDescription(String description) Set the description
ResourceSchema.ResourceFieldSchema	setName(String name) Set the name of this filed.
ResourceSchema.ResourceFieldSchema	setSchema(ResourceSchema schema) Set the schema for this field.
ResourceSchema.ResourceFieldSchema	setType(byte type) Set the type of this field
static void	throwInvalidSchemaException()
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

ResourceFieldSchema

public ResourceFieldSchema()

Construct an empty field schema.

ResourceFieldSchema

public ResourceFieldSchema(Schema.FieldSchema fieldSchema)

Construct using a Schema.FieldSchema as the template.

Parameters:

fieldSchema - fieldSchema to copy from

ResourceFieldSchema

public ResourceFieldSchema(LogicalSchema.LogicalFieldSchema fieldSchema)

Construct using a LogicalSchema.LogicalFieldSchema as the template.

Parameters:

fieldSchema - fieldSchema to copy from

Method Detail

getName

public String getName()

Get the name of this field.

Returns:

name

setName

public ResourceSchema.ResourceFieldSchema setName(String name)

Set the name of this filed.

Parameters:

name - new name

Returns:

this

getType

public byte getType()

Get the type of this field.

Returns:

type, as a DataType static final byte

setType

public ResourceSchema.ResourceFieldSchema setType(byte type)

Set the type of this field

Parameters:

type - new type

Returns:

this

getDescription

public String getDescription()

Get a free form text description of this field.

Returns:

description

setDescription

public ResourceSchema.ResourceFieldSchema setDescription(String description)

Set the description

Parameters:

description - new description

Returns:

this

getSchema

public ResourceSchema getSchema()

Get the schema for this field. Type tuple/bag/map may have a schema.

Returns:

schema

setSchema

public ResourceSchema.ResourceFieldSchema setSchema(ResourceSchema schema)
                                             throws IOException

Set the schema for this field. Type tuple/bag/map may have a schema.

Parameters:

schema - new schema

Returns:

this

Throws:

IOException

throwInvalidSchemaException

public static void throwInvalidSchemaException()
                                        throws FrontendException

Throws:

FrontendException

toString

public String toString()

Overrides:

toString in class Object

calcCastString

public String calcCastString()