uk.ac.ic.doc.automed.wrappers
Class SchemeQuery

java.lang.Object
  |
  +--uk.ac.ic.doc.automed.wrappers.SchemeQuery

public abstract class SchemeQuery

extends java.lang.Object

A generic representation of query expressions as trees, where each SchemeQuery has an operator type, and 0 or more fields that have a field type

Field Summary

static int	FIELD_TYPE_INTEGER A field that can hold an Integer constant
static int	FIELD_TYPE_ONE_OR_MORE Used when the previous field type may be repeated any number of times.
static int	FIELD_TYPE_SCHEMEQUERY A field that can hold a SchemeQuery
static int	FIELD_TYPE_STRING A field that can hold a String constant

Constructor Summary

SchemeQuery()

Method Summary

java.lang.Object	getField(int fieldNumber) Return a field from the query node.
int	getOperator() Return the operator type that this query node represents.

Methods inherited from class java.lang.Object

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

Field Detail

FIELD_TYPE_STRING

public static final int FIELD_TYPE_STRING

A field that can hold a String constant

See Also:

Constant Field Values

FIELD_TYPE_INTEGER

public static final int FIELD_TYPE_INTEGER

A field that can hold an Integer constant

See Also:

Constant Field Values

FIELD_TYPE_SCHEMEQUERY

public static final int FIELD_TYPE_SCHEMEQUERY

A field that can hold a SchemeQuery

See Also:

Constant Field Values

FIELD_TYPE_ONE_OR_MORE

public static final int FIELD_TYPE_ONE_OR_MORE

Used when the previous field type may be repeated any number of times. This must always be the last field type in a node.

See Also:

Constant Field Values

Constructor Detail

SchemeQuery

public SchemeQuery()

Method Detail

getOperator

public int getOperator()

Return the operator type that this query node represents.

getField

public java.lang.Object getField(int fieldNumber)

Return a field from the query node.