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

java.lang.Object
  uk.ac.ic.doc.automed.wrappers.AutoMedQuery

Direct Known Subclasses:

SQLQuery, YattaQuery

public abstract class AutoMedQuery
extends java.lang.Object

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

Author:

Peter McBrien (pjm@doc.ic.ac.uk)

Field Summary

static int	BINARY_CLASS
static AutoMedQueryToken	BOOLEAN
static int	BOOLEAN_TOKEN
static int	CLAUSE_CLASS
static AutoMedQueryToken	CONSTANT
static int	CONSTANT_TOKEN
static int	DATE_TOKEN
static int	DOUBLE_TOKEN
static int	FIELD_TYPE_AUTOMEDQUERY A field that can hold a AutoMedQuery
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_STRING A field that can hold a String constant
static AutoMedQueryToken	FLOAT
static int	FLOAT_TOKEN
static int	IDENTIFIER_TOKEN
static AutoMedQueryToken	INTEGER Token to represent the AutoMedWrapper.INTEGER atomic type
static int	INTEGER_TOKEN
static int	LONG_TOKEN
static AutoMedQueryToken	STRING
static int	STRING_TOKEN
static int	SYMBOL_TOKEN
static AutoMedQueryToken	TIME
static int	TIME_TOKEN
static int	UNARY_CLASS
static int	VALUE_CLASS A class of token that represents an atomic value in an expression

Constructor Summary

AutoMedQuery(AutoMedQueryToken id, java.lang.Object o)

AutoMedQuery(AutoMedQueryToken id, java.lang.Object[] field)

Method Summary

AutoMedQueryToken	getAutoMedQueryToken() Return the AutoMedQueryToken of this node; ie the type of object query node represents.
java.lang.Object	getField(int fieldNumber) Return a field from the query node, where fields are counted from zero.
java.lang.String	getString(int fieldNumber) Return a field as a String value.
void	setField(int fieldNumber, java.lang.Object value) Return a field in the query node.

Methods inherited from class java.lang.Object

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

Field Detail

VALUE_CLASS

public static final int VALUE_CLASS

A class of token that represents an atomic value in an expression

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Constant Field Values

UNARY_CLASS

public static final int UNARY_CLASS

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Constant Field Values

BINARY_CLASS

public static final int BINARY_CLASS

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Constant Field Values

CLAUSE_CLASS

public static final int CLAUSE_CLASS

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Constant Field Values

INTEGER_TOKEN

public static final int INTEGER_TOKEN

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Constant Field Values

LONG_TOKEN

public static final int LONG_TOKEN

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Constant Field Values

FLOAT_TOKEN

public static final int FLOAT_TOKEN

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Constant Field Values

DOUBLE_TOKEN

public static final int DOUBLE_TOKEN

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Constant Field Values

TIME_TOKEN

public static final int TIME_TOKEN

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Constant Field Values

DATE_TOKEN

public static final int DATE_TOKEN

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Constant Field Values

STRING_TOKEN

public static final int STRING_TOKEN

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Constant Field Values

BOOLEAN_TOKEN

public static final int BOOLEAN_TOKEN

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Constant Field Values

IDENTIFIER_TOKEN

public static final int IDENTIFIER_TOKEN

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Constant Field Values

SYMBOL_TOKEN

public static final int SYMBOL_TOKEN

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Constant Field Values

CONSTANT_TOKEN

public static final int CONSTANT_TOKEN

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Constant Field Values

INTEGER

public static final AutoMedQueryToken INTEGER

Token to represent the AutoMedWrapper.INTEGER atomic type

FLOAT

public static final AutoMedQueryToken FLOAT

TIME

public static final AutoMedQueryToken TIME

STRING

public static final AutoMedQueryToken STRING

BOOLEAN

public static final AutoMedQueryToken BOOLEAN

CONSTANT

public static final AutoMedQueryToken CONSTANT

FIELD_TYPE_STRING

public static final int FIELD_TYPE_STRING

A field that can hold a String constant

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Constant Field Values

FIELD_TYPE_INTEGER

public static final int FIELD_TYPE_INTEGER

A field that can hold an Integer constant

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Constant Field Values

FIELD_TYPE_AUTOMEDQUERY

public static final int FIELD_TYPE_AUTOMEDQUERY

A field that can hold a AutoMedQuery

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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

AutoMedQuery

public AutoMedQuery(AutoMedQueryToken id,
                    java.lang.Object[] field)

AutoMedQuery

public AutoMedQuery(AutoMedQueryToken id,
                    java.lang.Object o)

Method Detail

getAutoMedQueryToken

public final AutoMedQueryToken getAutoMedQueryToken()

Return the AutoMedQueryToken of this node; ie the type of object query node represents.

getField

public final java.lang.Object getField(int fieldNumber)

Return a field from the query node, where fields are counted from zero.

Parameters:

fieldNumber - the field to return.

getString

public final java.lang.String getString(int fieldNumber)

Return a field as a String value.

Parameters:

fieldNumber - the field to return.

setField

public final void setField(int fieldNumber,
                           java.lang.Object value)

Return a field in the query node.