org.apache.hadoop.zebra.schema
Class Schema.ColumnSchema

java.lang.Object
  org.apache.hadoop.zebra.schema.Schema.ColumnSchema

Enclosing class:

Schema

public static class Schema.ColumnSchema
extends Object

Column Schema in Schema

Constructor Summary

Schema.ColumnSchema(Schema.ColumnSchema cs)
copy ctor

Schema.ColumnSchema(String a, ColumnType t)
construct a ColumnSchema for a native type

Schema.ColumnSchema(String a, Schema s)
construct a Column schema for a RECORD column type

Schema.ColumnSchema(String a, Schema s, ColumnType t)
construct a column schema for a complex column type

Method Summary

static boolean	equals(Schema.ColumnSchema fschema, Schema.ColumnSchema fother) Compare two field schema for equality
int	getIndex() access function to get the column name
String	getName() access function to get the column name
Schema	getSchema()
ColumnType	getType() access function to get the column type
String	toString() string representation of the schema

Methods inherited from class java.lang.Object

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

Constructor Detail

Schema.ColumnSchema

public Schema.ColumnSchema(String a,
                           ColumnType t)

construct a ColumnSchema for a native type

Parameters:

a - column name

t - native column type

Schema.ColumnSchema

public Schema.ColumnSchema(String a,
                           Schema s)

construct a Column schema for a RECORD column type

Parameters:

a - column name

s - column schema

Schema.ColumnSchema

public Schema.ColumnSchema(String a,
                           Schema s,
                           ColumnType t)
                    throws ParseException

construct a column schema for a complex column type

Parameters:

a - column name

s - column schema

t - complex column type

Throws:

ParseException

Schema.ColumnSchema

public Schema.ColumnSchema(Schema.ColumnSchema cs)

copy ctor

Parameters:

cs - source column schema

Method Detail

getName

public String getName()

access function to get the column name

Returns:

name of the column

getType

public ColumnType getType()

access function to get the column type

Returns:

column type

getIndex

public int getIndex()

access function to get the column name

Returns:

column index in the parent schema

equals

public static boolean equals(Schema.ColumnSchema fschema,
                             Schema.ColumnSchema fother)

Compare two field schema for equality

Parameters:

fschema - one column schema to be compared

fother - the other column schema to be compared

Returns:

true if ColumnSchema are equal, false otherwise

toString

public String toString()

string representation of the schema

Overrides:

toString in class Object

getSchema

public Schema getSchema()