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oracle.javatools.db.sql
Class Comparison

java.lang.Object
oracle.javatools.db.AbstractDBObject
oracle.javatools.db.AbstractChildDBObject
oracle.javatools.db.sql.AbstractSQLFragment
oracle.javatools.db.sql.Operation
oracle.javatools.db.sql.Comparison

All Implemented Interfaces:

ChildDBObject, DBObject, SQLFragment, Copyable, DynamicPropertySet

public class Comparison

extends Operation

Subclass of Operation for comparisons. Operation only has two arguments - a left and right expression.
By default a Comparison object is EQUAL

Since:

10.1.3

Nested Class Summary

Nested classes/interfaces inherited from class oracle.javatools.db.AbstractDBObject

AbstractDBObject.ChildSupport

Field Summary

static int	EQUAL Equal
static int	EXISTS Exists
static int	GREATER Greater Than
static int	GREATER_EQUAL Greater Than Or Equal To
static int	LESS Less Than
static int	LESS_EQUAL Less Than Or Equal To
static int	LIKE Like
static int	NOT_EQUAL Not Equal
static int	NOT_EXISTS Not Exists
static int	NOT_LIKE Not Like
static int	NOT_NULL Is Not Null
static int	NULL Is Null

Fields inherited from class oracle.javatools.db.sql.AbstractSQLFragment

DEFAULT_SEPARATOR, EMPTY, EMPTY_ARRAY, NEWLINE, SPACE

Fields inherited from interface oracle.javatools.db.sql.SQLFragment

CONNECTBY, FROM, GROUPBY, HAVING, NOCYCLE, ORDERBY, SELECT, STARTWITH, TYPE, WHERE

Fields inherited from interface oracle.javatools.db.DBObject

COMMENT

Constructor Summary

Comparison()
Constructs a new, empty, comparison object.

Comparison(SQLFragment left, int comparator)
Left argument only constructor - used for IS NULL, IS NOT NULL, EXISTS and NOT EXISTS.

Comparison(SQLFragment left, int comparator, SQLFragment right)
Constructs a new comparison fragment with the given expressions and comparator.

Method Summary

void	addArgument(int index, SQLFragment expression)
void	addArgument(SQLFragment expression)
void	addArguments(SQLFragment[] expressions)
protected void	checkNewSize(int proposedSize) Override for operations that have specific size restrictions.
int	getArgumentCount() Returns the number of arguments stored.
SQLFragment[]	getArguments() Returns the arguments stored in this function.
int	getComparator() Returns the comparator for this comparison fragment.
static java.lang.String	getComparatorText(int op) Returns the comparator text for the given int.
SQLFragment	getLeftExpression() Gets the left expression.
java.lang.String	getOperatorText() Returns the text for the comparator for this comparison fragment.
SQLFragment	getRightExpression() Gets the right expression.
java.lang.String	getSQLText() Returns the complete SQL representation for this Function fragment.
static boolean	isComparator(int op)
boolean	removeArgument(SQLFragment expression)
void	setArguments(SQLFragment[] arguments) Sets the arguments for this function.
void	setComparator(int comparator) Sets the comparator for this comparison object.
void	setLeftExpression(SQLFragment leftExpression) Sets the left expression.
void	setRightExpression(SQLFragment rightExpression) Sets the right expression.

Methods inherited from class oracle.javatools.db.sql.Operation

checkArgument, copyToImpl, equalsImpl, getDistinctText, getSeparator, setCommutative, setFunctionFormat, setSeparator

Methods inherited from class oracle.javatools.db.sql.AbstractSQLFragment

appendToBuffer, argsToString, getTextOrNull, getTextOrNull, getType, setParent, surroundWithBrackets, surroundWithBrackets, toString

Methods inherited from class oracle.javatools.db.AbstractChildDBObject

findParent, getParent, getProperty, setProperty

Methods inherited from class oracle.javatools.db.AbstractDBObject

changeParent, compareToImpl, copyObject, copyTo, copyTo, copyTo, copyTo, equals, findOwnedObject, findOwnedObject, findOwnedObject, getChildSupport, getID, getName, getOwnedObjects, getOwnedObjects, getOwnedObjectsImpl, getProperties, getProperty, getReferenceIDs, getReferenceIDsImpl, hashCode, includeOwnedObject, includesType, includesType, removeThisAsParent, replaceReferenceIDs, setID, setName, setProperties

Methods inherited from class java.lang.Object

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

Methods inherited from interface oracle.javatools.db.ChildDBObject

getParent

Methods inherited from interface oracle.javatools.db.DBObject

copyTo, copyTo, copyTo, findOwnedObject, findOwnedObject, getID, getName, getOwnedObjects, getOwnedObjects, getReferenceIDs, replaceReferenceIDs, setID, setName

Methods inherited from interface oracle.javatools.util.DynamicPropertySet

getProperties, getProperty, getProperty, setProperties, setProperty

Field Detail

GREATER

public static final int GREATER

Greater Than

See Also:

Constant Field Values

LESS

public static final int LESS

Less Than

See Also:

Constant Field Values

GREATER_EQUAL

public static final int GREATER_EQUAL

Greater Than Or Equal To

See Also:

Constant Field Values

LESS_EQUAL

public static final int LESS_EQUAL

Less Than Or Equal To

See Also:

Constant Field Values

EQUAL

public static final int EQUAL

Equal

See Also:

Constant Field Values

NOT_EQUAL

public static final int NOT_EQUAL

Not Equal

See Also:

Constant Field Values

NULL

public static final int NULL

Is Null

See Also:

Constant Field Values

NOT_NULL

public static final int NOT_NULL

Is Not Null

See Also:

Constant Field Values

LIKE

public static final int LIKE

Like

See Also:

Constant Field Values

NOT_LIKE

public static final int NOT_LIKE

Not Like

See Also:

Constant Field Values

EXISTS

public static final int EXISTS

Exists

See Also:

Constant Field Values

NOT_EXISTS

public static final int NOT_EXISTS

Not Exists

See Also:

Constant Field Values

Constructor Detail

Comparison

public Comparison()

Constructs a new, empty, comparison object.

Comparison

public Comparison(SQLFragment left,
                  int comparator)

Left argument only constructor - used for IS NULL, IS NOT NULL, EXISTS and NOT EXISTS.

Comparison

public Comparison(SQLFragment left,
                  int comparator,
                  SQLFragment right)

Constructs a new comparison fragment with the given expressions and comparator.

Method Detail

getComparator

public int getComparator()

Returns the comparator for this comparison fragment. Use getComparatorText() to return By default a Comparison object is EQUAL

getOperatorText

public java.lang.String getOperatorText()

Returns the text for the comparator for this comparison fragment. By default a Comparison object is EQUAL

Specified by:

getOperatorText in class Operation

setComparator

public void setComparator(int comparator)

Sets the comparator for this comparison object. One of the static members must be used or an IllegalArgumentException will be thrown.

getLeftExpression

public SQLFragment getLeftExpression()

Gets the left expression.

setLeftExpression

public void setLeftExpression(SQLFragment leftExpression)

Sets the left expression.

getRightExpression

public SQLFragment getRightExpression()

Gets the right expression.

setRightExpression

public void setRightExpression(SQLFragment rightExpression)

Sets the right expression.

checkNewSize

protected void checkNewSize(int proposedSize)

Description copied from class: Operation

Override for operations that have specific size restrictions. Subclasses should throw an IllegalArgumentException if the proposed new size is illegal.

Overrides:

checkNewSize in class Operation

getSQLText

public java.lang.String getSQLText()

Description copied from class: Operation

Returns the complete SQL representation for this Function fragment.

Specified by:

getSQLText in interface SQLFragment

Overrides:

getSQLText in class Operation

Returns:

a string representing the SQL text for this object.

addArgument

public void addArgument(int index,
                        SQLFragment expression)

Overrides:

addArgument in class Operation

addArgument

public void addArgument(SQLFragment expression)

Overrides:

addArgument in class Operation

addArguments

public void addArguments(SQLFragment[] expressions)

Overrides:

addArguments in class Operation

getArgumentCount

public int getArgumentCount()

Description copied from class: Operation

Returns the number of arguments stored.

Overrides:

getArgumentCount in class Operation

setArguments

public void setArguments(SQLFragment[] arguments)

Description copied from class: Operation

Sets the arguments for this function.

Overrides:

setArguments in class Operation

removeArgument

public boolean removeArgument(SQLFragment expression)

Overrides:

removeArgument in class Operation

getArguments

public SQLFragment[] getArguments()

Description copied from class: Operation

Returns the arguments stored in this function.

Overrides:

getArguments in class Operation

isComparator

public static boolean isComparator(int op)

getComparatorText

public static java.lang.String getComparatorText(int op)

Returns the comparator text for the given int. Returns null if one of the static members isn't used.

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