simpledb
Class IntField

java.lang.Object
  simpledb.IntField

All Implemented Interfaces:

Field

public class IntField
extends java.lang.Object
implements Field

Instance of Field that stores a single integer.

Field Summary

private int

value

Constructor Summary

IntField(int i)
Constructor.

Method Summary

boolean	compare(Predicate.Op op, Field val) Compare the specified field to the value of this Field.
boolean	equals(java.lang.Object field)
Type	getType() Return the Type of this field.
int	getValue()
int	hashCode() Hash code.
void	serialize(java.io.DataOutputStream dos) Write the bytes representing this field to the specified DataOutputStream.
java.lang.String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

value

private int value

Constructor Detail

IntField

public IntField(int i)

Constructor.

Parameters:

i - The value of this field.

Method Detail

getValue

public int getValue()

toString

public java.lang.String toString()

Specified by:

toString in interface Field

Overrides:

toString in class java.lang.Object

hashCode

public int hashCode()

Description copied from interface: Field

Hash code. Different Field objects representing the same value should probably return the same hashCode.

Specified by:

hashCode in interface Field

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object field)

Specified by:

equals in interface Field

Overrides:

equals in class java.lang.Object

serialize

public void serialize(java.io.DataOutputStream dos)
               throws java.io.IOException

Description copied from interface: Field

Write the bytes representing this field to the specified DataOutputStream.

Specified by:

serialize in interface Field

Parameters:

dos - The DataOutputStream to write to.

Throws:

java.io.IOException

See Also:

DataOutputStream

compare

public boolean compare(Predicate.Op op,
                       Field val)

Compare the specified field to the value of this Field. Return semantics are as specified by Field.compare

Specified by:

compare in interface Field

Parameters:

op - The operator

val - The value to compare this Field to

Returns:

Whether or not the comparison yields true.

Throws:

IllegalCastException - if val is not an IntField

See Also:

Field.compare(simpledb.Predicate.Op, simpledb.Field)

getType

public Type getType()

Return the Type of this field.

Specified by:

getType in interface Field

Returns:

Type.INT_TYPE