| com.caucho.el.Expr
All known Subclasses: com.caucho.el.AbstractBooleanExpr, com.caucho.el.DoubleLiteral, com.caucho.el.IdExpr, com.caucho.el.DivExpr, com.caucho.el.StringLiteral, com.caucho.el.SubExpr, com.caucho.el.LongLiteral, com.caucho.el.FunctionExpr, com.caucho.el.MethodExpr, com.caucho.el.AddExpr, com.caucho.jsf.el.ImplicitObjectExpr, com.caucho.el.ArrayExpr, com.caucho.el.ConditionalExpr, com.caucho.el.NullLiteral, com.caucho.el.MinusExpr, com.caucho.el.PathExpr, com.caucho.el.StaticMethodExpr, com.caucho.el.MulExpr, com.caucho.jsp.el.ImplicitObjectExpr, com.caucho.el.UnaryExpr, com.caucho.el.ArrayResolverExpr, com.caucho.el.ModExpr, com.caucho.el.BinaryExpr, com.caucho.jsp.el.ImplicitFieldExpr, com.caucho.el.InterpolateExpr, com.caucho.el.ValueExpr,
| Expr | | abstract public class Expr extends ValueExpression (Code) | | Abstract implementation class for an expression.
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| Method Summary | |
| public static Object | coerceToType(Object obj, Class targetType)
| | public Expr | createField(Expr field)
Creates a field reference using this expression as the base object. | | public Expr | createField(String field)
Creates a field reference using this expression as the base object. | | public Expr | createMethod(Expr[] args)
| | public boolean | equals(Object o)
| | public static Object | error(Throwable e, ELContext env)
| | public BigDecimal | evalBigDecimal(ELContext env)
Evaluate the expression, knowing the value should be a BigDecimal. | | public BigInteger | evalBigInteger(ELContext env)
Evaluate the expression, knowing the value should be a BigInteger. | | public boolean | evalBoolean(ELContext env)
Evaluate the expression, knowing the value should be a boolean. | | public char | evalCharacter(ELContext env)
| | public double | evalDouble(ELContext env)
Evaluate the expression, knowing the value should be a double. | | public long | evalLong(ELContext env)
| | final public Object | evalObject(ELContext env)
Evaluates the expression, returning an object. | | public long | evalPeriod(ELContext env)
| | public String | evalString(ELContext env)
| | public String | evalStringWithNull(ELContext env)
| | public Class | getExpectedType()
| | public String | getExpressionString()
| | public MethodInfo | getMethodInfo(ELContext env, Class returnType, Class[] argTypes)
Evaluates the expression, returning an object. | | public Class | getType(ELContext context)
| | abstract public Object | getValue(ELContext env)
Evaluates the expression, returning an object. | | public int | hashCode()
| | public static Object | invocationError(Throwable e)
| | public Object | invoke(ELContext env, Class[] argTypes, Object[] args)
Evaluates the expression, returning an object. | | public boolean | isConstant()
Returns true if the expression is constant. | | public static boolean | isDouble(Object o)
Returns true for a double or double-equivalent. | | protected static boolean | isDoubleString(Object obj)
| | public boolean | isLiteralText()
| | public boolean | isReadOnly(ELContext env)
Returns true if the expression is read-only. | | public boolean | print(WriteStream out, ELContext env, boolean escapeXml)
Evaluates directly to the output. | | public boolean | print(JspWriter out, ELContext env, boolean escapeXml)
Evaluates directly to the output. | | public void | printCreate(WriteStream os)
Generates the code to regenerate the expression. | | public static void | printEscaped(WriteStream os, ReadStream is)
Write to the *.java stream escaping Java reserved characters. | | public static void | printEscapedString(WriteStream os, String string)
Write to the *.java stream escaping Java reserved characters. | | public static void | setProperty(Object target, String property, Object value)
| | public void | setValue(ELContext env, Object value)
Evaluates the expression, setting an object. | | public static BigDecimal | toBigDecimal(Object value, ELContext env)
Converts some unknown value to a big decimal
Parameters:
value - the value to be converted. | | public static BigInteger | toBigInteger(Object value, ELContext env)
Converts some unknown value to a big integer
Parameters:
value - the value to be converted. | | public static boolean | toBoolean(Object value, ELContext env)
Converts some unknown value to a boolean.
Parameters:
value - the value to be converted. | | public static char | toCharacter(Object value, ELContext env)
Converts some unknown value to a string.
Parameters:
value - the value to be converted. | | public static double | toDouble(Object value, ELContext env)
Converts some unknown value to a double.
Parameters:
value - the value to be converted. | | public static long | toLong(Object value, ELContext env)
Converts some unknown value to a long.
Parameters:
value - the value to be converted. | | public static boolean | toStream(JspWriter out, Object value, boolean isEscaped)
Write to the stream.
Parameters:
out - the output stream
Parameters:
value - the value to be written. | | public static void | toStream(WriteStream out, Object value)
Write to the stream. | | public static void | toStream(JspWriter out, Object value)
Write to the stream. | | public static void | toStreamEscaped(Writer out, Object value)
Write to the stream. | | public static void | toStreamEscaped(WriteStream out, Object value)
Write to the stream escaping XML reserved characters. | | public static void | toStreamEscaped(Writer out, Reader in)
Write to the stream escaping XML reserved characters. | | public static String | toString(Object value, ELContext env)
Converts some unknown value to a string.
Parameters:
value - the value to be converted. | | public static String | toString(long value, ELContext env)
Converts some unknown value to a string.
Parameters:
value - the value to be converted. | | public static String | toString(double value, ELContext env)
Converts some unknown value to a string.
Parameters:
value - the value to be converted. | | public static String | toString(boolean value, ELContext env)
Converts some unknown value to a string.
Parameters:
value - the value to be converted. | | public static String | toString(char value, ELContext env)
Converts some unknown value to a string.
Parameters:
value - the value to be converted. | | abstract public String | toString()
| | public static String | toStringWithNull(Object value, ELContext env)
Converts some unknown value to a string.
Parameters:
value - the value to be converted. |
| BOOLEAN | | final static int BOOLEAN(Code) | | |
| BOOLEAN_OBJ | | final static int BOOLEAN_OBJ(Code) | | |
| BYTE | | final static int BYTE(Code) | | |
| BYTE_OBJ | | final static int BYTE_OBJ(Code) | | |
| DOUBLE | | final static int DOUBLE(Code) | | |
| DOUBLE_OBJ | | final static int DOUBLE_OBJ(Code) | | |
| EMPTY | | final static int EMPTY(Code) | | |
| FLOAT | | final static int FLOAT(Code) | | |
| FLOAT_OBJ | | final static int FLOAT_OBJ(Code) | | |
| INT_OBJ | | final static int INT_OBJ(Code) | | |
| L | | final protected static L10N L(Code) | | |
| LONG | | final static int LONG(Code) | | |
| LONG_OBJ | | final static int LONG_OBJ(Code) | | |
| MINUS | | final static int MINUS(Code) | | |
| OBJECT | | final static int OBJECT(Code) | | |
| SHORT | | final static int SHORT(Code) | | |
| SHORT_OBJ | | final static int SHORT_OBJ(Code) | | |
| STRING | | final static int STRING(Code) | | |
| _typeMap | | final static IntMap _typeMap(Code) | | |
| createField | | public Expr createField(Expr field)(Code) | | Creates a field reference using this expression as the base object.
Parameters:
field - the expression for the field. |
| createField | | public Expr createField(String field)(Code) | | Creates a field reference using this expression as the base object.
Parameters:
field - the string reference for the field. |
| createMethod | | public Expr createMethod(Expr[] args)(Code) | | Creates a method call using this as the obj.method
expression
Parameters:
args - the arguments for the method |
| error | | public static Object error(Throwable e, ELContext env) throws ELException(Code) | | Returns an error object
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| evalBigDecimal | | public BigDecimal evalBigDecimal(ELContext env) throws ELException(Code) | | Evaluate the expression, knowing the value should be a BigDecimal.
Parameters:
env - the variable environment the value of the expression as a BigDecimal |
| evalBigInteger | | public BigInteger evalBigInteger(ELContext env) throws ELException(Code) | | Evaluate the expression, knowing the value should be a BigInteger.
Parameters:
env - the variable environment the value of the expression as a BigInteger |
| evalBoolean | | public boolean evalBoolean(ELContext env) throws ELException(Code) | | Evaluate the expression, knowing the value should be a boolean.
Parameters:
env - the variable environment the value of the expression as a boolean |
| evalCharacter | | public char evalCharacter(ELContext env) throws ELException(Code) | | Evaluate the expression, knowing the value should be a string
Parameters:
env - the variable environment the value of the expression as a string |
| evalDouble | | public double evalDouble(ELContext env) throws ELException(Code) | | Evaluate the expression, knowing the value should be a double.
Parameters:
env - the variable environment the value of the expression as a double |
| evalLong | | public long evalLong(ELContext env) throws ELException(Code) | | Evaluate the expression, knowing the value should be a long
Parameters:
env - the variable environment the value of the expression as a double |
| evalObject | | final public Object evalObject(ELContext env) throws ELException(Code) | | Evaluates the expression, returning an object.
Parameters:
env - the variable environment the value of the expression as an object |
| evalPeriod | | public long evalPeriod(ELContext env) throws ELException(Code) | | Evaluate the expression, knowing the value should be a period
Parameters:
env - the variable environment the value of the expression as a period |
| evalString | | public String evalString(ELContext env) throws ELException(Code) | | Evaluate the expression, knowing the value should be a string
Parameters:
env - the variable environment the value of the expression as a string |
| evalStringWithNull | | public String evalStringWithNull(ELContext env) throws ELException(Code) | | Evaluate the expression, knowing the value should be a string
Parameters:
env - the variable environment the value of the expression as a string |
| getExpressionString | | public String getExpressionString()(Code) | | |
| getMethodInfo | | public MethodInfo getMethodInfo(ELContext env, Class returnType, Class[] argTypes) throws ELException(Code) | | Evaluates the expression, returning an object.
Parameters:
env - the variable environment the value of the expression as an object |
| getType | | public Class getType(ELContext context) throws PropertyNotFoundException, ELException(Code) | | |
| getValue | | abstract public Object getValue(ELContext env) throws ELException(Code) | | Evaluates the expression, returning an object.
Parameters:
env - the variable environment the value of the expression as an object |
| hashCode | | public int hashCode()(Code) | | |
| invocationError | | public static Object invocationError(Throwable e) throws ELException(Code) | | Returns an error object
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| invoke | | public Object invoke(ELContext env, Class[] argTypes, Object[] args) throws ELException(Code) | | Evaluates the expression, returning an object.
Parameters:
env - the variable environment the value of the expression as an object |
| isConstant | | public boolean isConstant()(Code) | | Returns true if the expression is constant.
|
| isDouble | | public static boolean isDouble(Object o)(Code) | | Returns true for a double or double-equivalent.
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| isDoubleString | | protected static boolean isDoubleString(Object obj)(Code) | | |
| isLiteralText | | public boolean isLiteralText()(Code) | | Returns true if the expression is literal text
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| isReadOnly | | public boolean isReadOnly(ELContext env)(Code) | | Returns true if the expression is read-only.
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| print | | public boolean print(WriteStream out, ELContext env, boolean escapeXml) throws IOException, ELException(Code) | | Evaluates directly to the output. The method returns true
if the default value should be printed instead.
Parameters:
out - the output writer
Parameters:
env - the variable environment
Parameters:
escapeXml - if true, escape reserved XML true if the object is null, otherwise false |
| print | | public boolean print(JspWriter out, ELContext env, boolean escapeXml) throws IOException, ELException(Code) | | Evaluates directly to the output. The method returns true
if the default value should be printed instead.
Parameters:
out - the output writer
Parameters:
env - the variable environment
Parameters:
escapeXml - if true, escape reserved XML true if the object is null, otherwise false |
| printCreate | | public void printCreate(WriteStream os) throws IOException(Code) | | Generates the code to regenerate the expression.
Parameters:
os - the stream to the *.java page |
| printEscaped | | public static void printEscaped(WriteStream os, ReadStream is) throws IOException(Code) | | Write to the *.java stream escaping Java reserved characters.
Parameters:
out - the output stream to the *.java code.
Parameters:
value - the value to be converted. |
| printEscapedString | | public static void printEscapedString(WriteStream os, String string) throws IOException(Code) | | Write to the *.java stream escaping Java reserved characters.
Parameters:
out - the output stream to the *.java code.
Parameters:
value - the value to be converted. |
| setValue | | public void setValue(ELContext env, Object value) throws PropertyNotFoundException, PropertyNotWritableException, ELException(Code) | | Evaluates the expression, setting an object.
Parameters:
env - the variable environment the value of the expression as an object |
| toBigDecimal | | public static BigDecimal toBigDecimal(Object value, ELContext env) throws ELException(Code) | | Converts some unknown value to a big decimal
Parameters:
value - the value to be converted. the BigDecimal-converted value. |
| toBigInteger | | public static BigInteger toBigInteger(Object value, ELContext env) throws ELException(Code) | | Converts some unknown value to a big integer
Parameters:
value - the value to be converted. the BigInteger-converted value. |
| toBoolean | | public static boolean toBoolean(Object value, ELContext env) throws ELException(Code) | | Converts some unknown value to a boolean.
Parameters:
value - the value to be converted. the boolean-converted value. |
| toCharacter | | public static char toCharacter(Object value, ELContext env) throws ELException(Code) | | Converts some unknown value to a string.
Parameters:
value - the value to be converted. the string-converted value. |
| toDouble | | public static double toDouble(Object value, ELContext env) throws ELException(Code) | | Converts some unknown value to a double.
Parameters:
value - the value to be converted. the double-converted value. |
| toLong | | public static long toLong(Object value, ELContext env) throws ELException(Code) | | Converts some unknown value to a long.
Parameters:
value - the value to be converted. the long-converted value. |
| toStream | | public static boolean toStream(JspWriter out, Object value, boolean isEscaped) throws IOException(Code) | | Write to the stream.
Parameters:
out - the output stream
Parameters:
value - the value to be written. true for null |
| toStream | | public static void toStream(WriteStream out, Object value) throws IOException(Code) | | Write to the stream.
Parameters:
out - the output stream
Parameters:
value - the value to be written. |
| toStream | | public static void toStream(JspWriter out, Object value) throws IOException(Code) | | Write to the stream.
Parameters:
out - the output stream
Parameters:
value - the value to be written. |
| toStreamEscaped | | public static void toStreamEscaped(Writer out, Object value) throws IOException(Code) | | Write to the stream.
Parameters:
out - the output stream
Parameters:
value - the value to be written. |
| toStreamEscaped | | public static void toStreamEscaped(WriteStream out, Object value) throws IOException(Code) | | Write to the stream escaping XML reserved characters.
Parameters:
out - the output stream.
Parameters:
value - the value to be converted. |
| toStreamEscaped | | public static void toStreamEscaped(Writer out, Reader in) throws IOException(Code) | | Write to the stream escaping XML reserved characters.
Parameters:
out - the output stream.
Parameters:
value - the value to be converted. |
| toString | | public static String toString(Object value, ELContext env)(Code) | | Converts some unknown value to a string.
Parameters:
value - the value to be converted. the string-converted value. |
| toString | | public static String toString(long value, ELContext env)(Code) | | Converts some unknown value to a string.
Parameters:
value - the value to be converted. the string-converted value. |
| toString | | public static String toString(double value, ELContext env)(Code) | | Converts some unknown value to a string.
Parameters:
value - the value to be converted. the string-converted value. |
| toString | | public static String toString(boolean value, ELContext env)(Code) | | Converts some unknown value to a string.
Parameters:
value - the value to be converted. the string-converted value. |
| toString | | public static String toString(char value, ELContext env)(Code) | | Converts some unknown value to a string.
Parameters:
value - the value to be converted. the string-converted value. |
| toStringWithNull | | public static String toStringWithNull(Object value, ELContext env)(Code) | | Converts some unknown value to a string.
Parameters:
value - the value to be converted. the string-converted value. |
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