程序包 cn.taketoday.expression.spel.ast

类 Literal

java.lang.Object

cn.taketoday.expression.spel.ast.SpelNodeImpl

cn.taketoday.expression.spel.ast.Literal

所有已实现的接口:

Opcodes, SpelNode

直接已知子类:

BooleanLiteral, FloatLiteral, IntLiteral, LongLiteral, NullLiteral, RealLiteral, StringLiteral

public abstract class Literal
extends SpelNodeImpl

Common superclass for nodes representing literals (boolean, string, number, etc).

从以下版本开始:

4.0

作者:

Andy Clement, Juergen Hoeller, Harry Yang

字段概要

字段

修饰符和类型	字段	说明
private final String	originalValue

从类继承的字段 cn.taketoday.expression.spel.ast.SpelNodeImpl

children, exitTypeDescriptor

从接口继承的字段 cn.taketoday.bytecode.Opcodes

AALOAD, AASTORE, ACC_ABSTRACT, ACC_ANNOTATION, ACC_BRIDGE, ACC_DEPRECATED, ACC_ENUM, ACC_FINAL, ACC_INTERFACE, ACC_MANDATED, ACC_MODULE, ACC_NATIVE, ACC_OPEN, ACC_PRIVATE, ACC_PROTECTED, ACC_PUBLIC, ACC_RECORD, ACC_STATIC, ACC_STATIC_PHASE, ACC_STRICT, ACC_SUPER, ACC_SYNCHRONIZED, ACC_SYNTHETIC, ACC_TRANSIENT, ACC_TRANSITIVE, ACC_VARARGS, ACC_VOLATILE, ACONST_NULL, ALOAD, ANEWARRAY, ARETURN, ARRAYLENGTH, ASTORE, ATHROW, BALOAD, BASTORE, BIPUSH, CALOAD, CASTORE, CHECKCAST, D2F, D2I, D2L, DADD, DALOAD, DASTORE, DCMPG, DCMPL, DCONST_0, DCONST_1, DDIV, DLOAD, DMUL, DNEG, DOUBLE, DREM, DRETURN, DSTORE, DSUB, DUP, DUP_X1, DUP_X2, DUP2, DUP2_X1, DUP2_X2, F_APPEND, F_CHOP, F_FULL, F_NEW, F_SAME, F_SAME1, F2D, F2I, F2L, FADD, FALOAD, FASTORE, FCMPG, FCMPL, FCONST_0, FCONST_1, FCONST_2, FDIV, FLOAD, FLOAT, FMUL, FNEG, FREM, FRETURN, FSTORE, FSUB, GETFIELD, GETSTATIC, GOTO, H_GETFIELD, H_GETSTATIC, H_INVOKEINTERFACE, H_INVOKESPECIAL, H_INVOKESTATIC, H_INVOKEVIRTUAL, H_NEWINVOKESPECIAL, H_PUTFIELD, H_PUTSTATIC, I2B, I2C, I2D, I2F, I2L, I2S, IADD, IALOAD, IAND, IASTORE, ICONST_0, ICONST_1, ICONST_2, ICONST_3, ICONST_4, ICONST_5, ICONST_M1, IDIV, IF_ACMPEQ, IF_ACMPNE, IF_ICMPEQ, IF_ICMPGE, IF_ICMPGT, IF_ICMPLE, IF_ICMPLT, IF_ICMPNE, IFEQ, IFGE, IFGT, IFLE, IFLT, IFNE, IFNONNULL, IFNULL, IINC, ILOAD, IMUL, INEG, INSTANCEOF, INTEGER, INVOKEDYNAMIC, INVOKEINTERFACE, INVOKESPECIAL, INVOKESTATIC, INVOKEVIRTUAL, IOR, IREM, IRETURN, ISHL, ISHR, ISTORE, ISUB, IUSHR, IXOR, JAVA_VERSION, JSR, L2D, L2F, L2I, LADD, LALOAD, LAND, LASTORE, LCMP, LCONST_0, LCONST_1, LDC, LDIV, LLOAD, LMUL, LNEG, LONG, LOOKUPSWITCH, LOR, LREM, LRETURN, LSHL, LSHR, LSTORE, LSUB, LUSHR, LXOR, MONITORENTER, MONITOREXIT, MULTIANEWARRAY, NEW, NEWARRAY, NOP, NULL, POP, POP2, PRIVATE_FINAL_STATIC, PUTFIELD, PUTSTATIC, RET, RETURN, SALOAD, SASTORE, SIPUSH, SOURCE_DEPRECATED, SOURCE_MASK, SWAP, SWITCH_STYLE_HASH, SWITCH_STYLE_HASHONLY, SWITCH_STYLE_TRIE, T_BOOLEAN, T_BYTE, T_CHAR, T_DOUBLE, T_FLOAT, T_INT, T_LONG, T_SHORT, TABLESWITCH, TOP, UNINITIALIZED_THIS, V_PREVIEW, V1_1, V1_2, V1_3, V1_4, V1_5, V1_6, V1_7, V1_8, V10, V11, V12, V13, V14, V15, V16, V17, V18, V19, V20, V21, V9

构造器概要

构造器

构造器	说明
Literal(String originalValue, int startPos, int endPos)

方法概要

修饰符和类型	方法	说明
static Literal	getIntLiteral(String numberToken, int startPos, int endPos, int radix)	Process the string form of a number, using the specified base if supplied and return an appropriate literal to hold it.
abstract TypedValue	getLiteralValue()
static Literal	getLongLiteral(String numberToken, int startPos, int endPos, int radix)
final String	getOriginalValue()
static Literal	getRealLiteral(String numberToken, int startPos, int endPos, boolean isFloat)
final TypedValue	getValueInternal(ExpressionState state)
boolean	isNumberLiteral()	Determine if this literal represents a number.
String	toString()
String	toStringAST()	Return the string form the this AST node.

从类继承的方法 cn.taketoday.expression.spel.ast.SpelNodeImpl

generateCode, generateCodeForArgument, generateCodeForArguments, getChild, getChildCount, getEndPosition, getExitDescriptor, getObjectClass, getStartPosition, getTypedValue, getValue, getValue, getValueRef, isCompilable, isWritable, nextChildIs, setValue, setValueInternal

从类继承的方法 java.lang.Object

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

字段详细资料

originalValue

@Nullable
private final String originalValue

构造器详细资料

Literal

public Literal(@Nullable
 String originalValue,
 int startPos,
 int endPos)

方法详细资料

getOriginalValue

@Nullable
public final String getOriginalValue()

getValueInternal

public final TypedValue getValueInternal(ExpressionState state)
                                  throws SpelEvaluationException

指定者:

getValueInternal 在类中 SpelNodeImpl

抛出:

SpelEvaluationException

isNumberLiteral

public boolean isNumberLiteral()

Determine if this literal represents a number.

返回:

true if this literal represents a number

toString

public String toString()

覆盖:

toString 在类中 Object

toStringAST

public String toStringAST()

从接口复制的说明: SpelNode

Return the string form the this AST node.

返回:

the string form

getLiteralValue

public abstract TypedValue getLiteralValue()

getIntLiteral

public static Literal getIntLiteral(String numberToken,
 int startPos,
 int endPos,
 int radix)

Process the string form of a number, using the specified base if supplied and return an appropriate literal to hold it. Any suffix to indicate a long will be taken into account (either 'l' or 'L' is supported).

参数:

numberToken - the token holding the number as its payload (eg. 1234 or 0xCAFE)

radix - the base of number

返回:

a subtype of Literal that can represent it

getLongLiteral

public static Literal getLongLiteral(String numberToken,
 int startPos,
 int endPos,
 int radix)

getRealLiteral

public static Literal getRealLiteral(String numberToken,
 int startPos,
 int endPos,
 boolean isFloat)